The document is a handbook for electric motor bearings from SKF that provides specifications and information about various bearing types. It includes speed ratings, dimensions, installation tips, lubrication recommendations, and other technical details for SKF deep groove ball bearings in their 6200 and 6300 series. The handbook aims to help users select, install, and maintain SKF bearings for optimal electric motor performance.
Additive Manufacturing (2.008x Lecture Slides)A. John Hart
Slides accompanying 2.008x* video module on Additive Manufacturing, Prof. John Hart, MIT, 2016.
*Fundamentals of Manufacturing Processes on edX: https://www.edx.org/course/fundamentals-manufacturing-processes-mitx-2-008x
The document is a final project report for the design of a double branch double reduction gearbox for a solar-powered aircraft. It details the design process undertaken by the NikolaDrive team to meet requirements of minimizing weight, maximizing efficiency, and enduring the aircraft's lifetime. The team designed gears, shafts, and bearings integrated using a safety factor of 1.5. All components were iterated until falling within this safety factor. The total system operates at less than 5% power loss and weighs 14.4 kg, exceeding the 5.5 kg target weight. Individual contributions of the three team members to the overall collaborative effort are outlined.
Fusible plugs are used to keep the temperature of the fusible metal below its melting point. The fuse plugs operate as a safety valve when abnormal or dangerous temperatures build up in a closed vessel.
The document discusses the feed system components used in injection moulding including the sprue, runner, and gate. It describes the sprue as the tapered passage connecting the nozzle to the mould and the sprue bush. It explains that the runner is the channel connecting the sprue to the gate entrance of the cavity. Finally, it notes that the gate is the small channel connecting the runner to the cavity and discusses different gate types and how to design and balance the feed system.
Phase 1 dynamic analysis of single plate clutch using different friction mate...Arun Arun
This document summarizes a study on analyzing the dynamic performance of a single plate clutch using different friction materials. It begins with an introduction to clutch systems and discusses how the friction between clutch surfaces generates heat. It then outlines the objectives of analyzing stress, deformation, and performance of different friction materials. The document reviews several previous studies on clutch design and material analysis. It concludes by describing common clutch problems and their potential causes.
“Applications Of Powder Metallurgy In Reference with Cutting tools”Dushyant Kalchuri
Powder metallurgy is used for manufacturing products or articles from powdered metals by placing these powders in molds and are compacting the same using heavy compressive force. Typical examples of such article or products are grinding wheels, filament wire, magnets, welding rods, tungsten carbide cutting tools, self-lubricating bearings electrical contacts and turbines blades having high temperature strength. The manufacture of parts by powder metallurgy process involves the manufacture of powders, blending, compacting, profiteering, sintering and a number of secondary operations such as sizing, coining, machining, impregnation, infiltration, plating, and heat treatment.
The document is a production drawing that lists parts for the initial issue of a skidded helicopter tug gearbox assembly. It includes the sub assembly number, part number, and description for each component. There are a total of 90 components described in the production drawing breakdown.
Additive Manufacturing (2.008x Lecture Slides)A. John Hart
Slides accompanying 2.008x* video module on Additive Manufacturing, Prof. John Hart, MIT, 2016.
*Fundamentals of Manufacturing Processes on edX: https://www.edx.org/course/fundamentals-manufacturing-processes-mitx-2-008x
The document is a final project report for the design of a double branch double reduction gearbox for a solar-powered aircraft. It details the design process undertaken by the NikolaDrive team to meet requirements of minimizing weight, maximizing efficiency, and enduring the aircraft's lifetime. The team designed gears, shafts, and bearings integrated using a safety factor of 1.5. All components were iterated until falling within this safety factor. The total system operates at less than 5% power loss and weighs 14.4 kg, exceeding the 5.5 kg target weight. Individual contributions of the three team members to the overall collaborative effort are outlined.
Fusible plugs are used to keep the temperature of the fusible metal below its melting point. The fuse plugs operate as a safety valve when abnormal or dangerous temperatures build up in a closed vessel.
The document discusses the feed system components used in injection moulding including the sprue, runner, and gate. It describes the sprue as the tapered passage connecting the nozzle to the mould and the sprue bush. It explains that the runner is the channel connecting the sprue to the gate entrance of the cavity. Finally, it notes that the gate is the small channel connecting the runner to the cavity and discusses different gate types and how to design and balance the feed system.
Phase 1 dynamic analysis of single plate clutch using different friction mate...Arun Arun
This document summarizes a study on analyzing the dynamic performance of a single plate clutch using different friction materials. It begins with an introduction to clutch systems and discusses how the friction between clutch surfaces generates heat. It then outlines the objectives of analyzing stress, deformation, and performance of different friction materials. The document reviews several previous studies on clutch design and material analysis. It concludes by describing common clutch problems and their potential causes.
“Applications Of Powder Metallurgy In Reference with Cutting tools”Dushyant Kalchuri
Powder metallurgy is used for manufacturing products or articles from powdered metals by placing these powders in molds and are compacting the same using heavy compressive force. Typical examples of such article or products are grinding wheels, filament wire, magnets, welding rods, tungsten carbide cutting tools, self-lubricating bearings electrical contacts and turbines blades having high temperature strength. The manufacture of parts by powder metallurgy process involves the manufacture of powders, blending, compacting, profiteering, sintering and a number of secondary operations such as sizing, coining, machining, impregnation, infiltration, plating, and heat treatment.
The document is a production drawing that lists parts for the initial issue of a skidded helicopter tug gearbox assembly. It includes the sub assembly number, part number, and description for each component. There are a total of 90 components described in the production drawing breakdown.
The project presents a two speed transmission. Design requirements for the transmission state that it must have two forward gears and two reverse gears, be compact, be quiet, and have a collinear design. Also, the design must last for 1600 hours at each gear for a combined life of 6400 hours between 750 and 1250 rotations per minute (RPM) with a power input of 32 horsepower. The output shaft must rotate at 85% (±1%) and 65% (±1%) of the input speed in the input direction, and 60% (±1%) and 50% (±1%) of the input speed in the opposing direction. The design chosen consists of an input shaft, counter shaft, idler shaft, and an output shaft assemblies which were all designed using helical gears, tapered roller bearings, and radial ball bearings. Validation of the gears, bearings, and shafts were done using RomaxDesigner software. Analysis of the duty cycle summary for the final design shows design failure shortly after the required combined life of 6400 hours.
Hydroforming is a manufacturing process where high-pressure fluid is used to form sheet metal or tubing into complex shapes. There are two main types - tube hydroforming, where fluid is introduced into tube ends to reshape the tube inside dies, and sheet hydroforming, where sheet metal is forced into a die cavity by fluid pressure or a punch. Hydroforming provides benefits like increased strength, reduced weight and production costs, and tight tolerances. It is commonly used to form automotive components and other parts that require complex geometries.
This catalog from U.S. Seal Mfg provides information for selecting replacement mechanical seals for pumps. It includes cross-reference tables to identify the correct U.S. Seal Mfg part number based on the pump manufacturer's part number. The catalog also details the various seal types and materials offered by U.S. Seal Mfg as well as installation instructions and troubleshooting guidance. Customers can use this catalog to find replacement seals for pumps from manufacturers in various industries such as water, petrochemical, food processing, and more.
Plastic injection molding continues to advance as new technology emerges, and with its growth comes new opportunities for using parts made with this method in automotive manufacturing. The global industry continues to work a higher percentage of plastic injection molding parts into each new round of vehicle designs, and plastic injection molding is capable of keeping up with demand.
This document discusses wire arc additive manufacturing (WAAM) as an additive manufacturing technique. It begins with an overview of additive manufacturing and describes WAAM as using existing welding equipment with an electric arc energy source and welding wire feedstock. WAAM allows for higher deposition rates compared to laser-based methods and is more cost effective. Applications discussed include aluminum and steel components for the aerospace, automotive, and other industries. Research from Cranfield University is also summarized, describing large metallic parts they have produced with WAAM. Compared to powder-based processes, WAAM has lower geometrical accuracy but better mechanical properties and less porosity.
THERMAL & STRUCTURAL ANALYSIS ON DISC BRAKE ROTOR WITH DRAFTING USING CATIA ...NitinSuryawanshi12
Project consist of two types of analysis thermal , structural & VBA Programming.
Thermal analysis is done to check the thermal resistance of model Honda Unicorn 160.
Structural analysis is done to find the strength of the model.
VBA programming is used to automate drafting task.
This document discusses material selection for manufacturing. It begins by stating that material selection is an important step in product design to minimize costs while meeting performance goals. It then discusses using material selection charts to compare properties like stiffness and density to help choose appropriate materials. The document outlines a four step strategy for material selection: 1) translation to identify design requirements, 2) screening out unsuitable materials, 3) ranking remaining candidates, and 4) seeking additional supporting information. Key material properties like function, constraints, and objectives are defined. Case studies on selecting materials for a bike and drink container are also provided.
This document summarizes the design of a cotter joint to connect two rods subjected to an axial tensile load of 28kN. It outlines the 10 potential failure modes of the joint and provides the calculations to size each component based on the material properties. The components are designed to have adequate strength against failure based on the permissible tensile, compressive, and shear stresses of the material. The summary provides the key dimensions determined, including a rod diameter of 30mm, spigot diameter of 34mm, socket diameter of 60mm, and cotter width of 45mm.
The document discusses several metal casting and molding processes including magnetic mould casting, centrifugal casting, and metal injection molding. Magnetic mould casting uses electromagnetism to form a mould out of steel shots for casting metals. Centrifugal casting involves pouring molten metal into a rotating mould to produce axisymmetric parts like pipes and cylinders. Metal injection molding mixes metal powder with a binder to create a feedstock that is molded and then undergoes debinding and sintering to produce high-strength metal parts.
This document contains instructions and procedures for experiments in a Heat Power Engineering Laboratory. It includes a bona fide certificate, instructions for students, a list of 11 experiments, and procedures and calculations for experiments on heat transfer through natural convection from a vertical cylinder, forced convection inside a horizontal tube, and determining temperature distribution and efficiency of a pin-fin apparatus using forced convection. Diagrams, observation tables, formulas, and sample calculations are provided for each experiment. The goal is to determine heat transfer coefficients and understand heat transfer processes like natural convection, forced convection, and heat transfer through fins.
PSG Design Data Book Pages Required For Gear DesignSagar Dhotare
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help regulate emotions and stress levels.
Water jet machine report mechanical reportMohammad Asif
A water jet cutter, also known as a water jet or water jet, is an industrial tool capable of cutting a wide variety of materials using a very high-pressure jet of water, or a mixture of water and an abrasive substance. The term abrasive jet refers specifically to the use of a mixture of water and abrasive to cut hard materials such as metal or granite, while the terms pure water jet and water-only cutting refer to water jet cutting without the use of added abrasives, often used for softer materials such as wood or rubber
Ceramic bearings are typically constructed with a ferrous inner and outer ring or race with ceramic balls in the place of steel. Ceramic bearings offer many advantages over all steel bearings, such as higher speed and acceleration capability, increased stiffness, lower friction and more. Ceramic balls are also nonconductive. Ceramic bearings are available in all standard industry configurations such as, angular bearings, thrust bearing, pillow block bearing, needle bearings, and roller bearings.
This document presents a major project on heat transfer study using COMSOL Multiphysics software. It was submitted by Suraj Kumar and Pankaj Kumar to the Department of Chemical Engineering at Sant Longowal Institute of Engineering & Technology to fulfill the requirements for a Bachelor of Engineering degree in Chemical Engineering. The project involves simulating a heat exchanger model in COMSOL to calculate the heat transfer coefficient and pressure drops. It includes sections on objectives, literature review on heat transfer mechanisms and heat exchangers, an overview of the COMSOL software, the heat exchanger modeling procedure, and conclusions.
Selective Laser Melting versus Electron Beam MeltingCarsten Engel
This document summarizes research on additive manufacturing technologies for metal applications. It discusses Sirris, an organization that provides technology services to industry, and their expertise in additive manufacturing. Two key additive manufacturing technologies for metals are described - Electron Beam Melting (EBM) and Laser Beam Melting (LBM). EBM uses an electron beam to sinter metal powder in a vacuum environment, while LBM uses a laser beam under argon gas. Their differences in terms of process parameters, material properties, and advantages/disadvantages are summarized. Metallurgical analysis shows EBM produces a uniform fine-grained microstructure while LBM microstructure depends on build orientation. Mechanical properties are also compared between the two technologies.
The document discusses the key processes involved in tyre manufacturing, including compounding and mixing rubber and other materials, milling and calendaring the rubber into sheets, extruding tread and other components, assembling the components on a tyre building machine, curing and vulcanizing the assembled tyre, and final inspection and finishing of the cured tyre. Tyre manufacturing requires combining many raw materials like various rubber compounds, carbon black, fabric, and steel wires and cables through mixing, shaping, building, and curing processes to produce the final product.
Pressure die casting is a manufacturing process where molten metal is injected under high pressure into a steel mold cavity. This allows for the rapid solidification of net-shaped metal components with tight tolerances. There are two main types - high pressure die casting for parts requiring close tolerances, and low pressure die casting for larger, less critical parts. Pressure die casting allows for high-volume production of complex parts and good dimensional accuracy.
The document is a catalog from Timken that provides information on their tapered roller bearings and related products. It includes an overview of Timken as a company that designs and manufactures high-performance mechanical components including bearings. The catalog contains detailed product information, specifications, and engineering guidance for the proper application and use of Timken's tapered roller bearings. It covers both metric and imperial sized bearings that can be used in applications across multiple industries.
Rolling bearings and seals in electric motors andgenerators đã chuyển đổivinh chu
This document discusses rolling bearings used in electric motors and generators. It covers key design requirements for bearings in electric machines including operating conditions, required uptime, maintenance needs, and manufacturing methods. It also discusses selecting the proper bearing type, lubricant, and lubrication method to optimize service life. Common bearing types for electric machines like ball, roller, and hybrid bearings are described along with examples of how to calculate bearing loads.
The project presents a two speed transmission. Design requirements for the transmission state that it must have two forward gears and two reverse gears, be compact, be quiet, and have a collinear design. Also, the design must last for 1600 hours at each gear for a combined life of 6400 hours between 750 and 1250 rotations per minute (RPM) with a power input of 32 horsepower. The output shaft must rotate at 85% (±1%) and 65% (±1%) of the input speed in the input direction, and 60% (±1%) and 50% (±1%) of the input speed in the opposing direction. The design chosen consists of an input shaft, counter shaft, idler shaft, and an output shaft assemblies which were all designed using helical gears, tapered roller bearings, and radial ball bearings. Validation of the gears, bearings, and shafts were done using RomaxDesigner software. Analysis of the duty cycle summary for the final design shows design failure shortly after the required combined life of 6400 hours.
Hydroforming is a manufacturing process where high-pressure fluid is used to form sheet metal or tubing into complex shapes. There are two main types - tube hydroforming, where fluid is introduced into tube ends to reshape the tube inside dies, and sheet hydroforming, where sheet metal is forced into a die cavity by fluid pressure or a punch. Hydroforming provides benefits like increased strength, reduced weight and production costs, and tight tolerances. It is commonly used to form automotive components and other parts that require complex geometries.
This catalog from U.S. Seal Mfg provides information for selecting replacement mechanical seals for pumps. It includes cross-reference tables to identify the correct U.S. Seal Mfg part number based on the pump manufacturer's part number. The catalog also details the various seal types and materials offered by U.S. Seal Mfg as well as installation instructions and troubleshooting guidance. Customers can use this catalog to find replacement seals for pumps from manufacturers in various industries such as water, petrochemical, food processing, and more.
Plastic injection molding continues to advance as new technology emerges, and with its growth comes new opportunities for using parts made with this method in automotive manufacturing. The global industry continues to work a higher percentage of plastic injection molding parts into each new round of vehicle designs, and plastic injection molding is capable of keeping up with demand.
This document discusses wire arc additive manufacturing (WAAM) as an additive manufacturing technique. It begins with an overview of additive manufacturing and describes WAAM as using existing welding equipment with an electric arc energy source and welding wire feedstock. WAAM allows for higher deposition rates compared to laser-based methods and is more cost effective. Applications discussed include aluminum and steel components for the aerospace, automotive, and other industries. Research from Cranfield University is also summarized, describing large metallic parts they have produced with WAAM. Compared to powder-based processes, WAAM has lower geometrical accuracy but better mechanical properties and less porosity.
THERMAL & STRUCTURAL ANALYSIS ON DISC BRAKE ROTOR WITH DRAFTING USING CATIA ...NitinSuryawanshi12
Project consist of two types of analysis thermal , structural & VBA Programming.
Thermal analysis is done to check the thermal resistance of model Honda Unicorn 160.
Structural analysis is done to find the strength of the model.
VBA programming is used to automate drafting task.
This document discusses material selection for manufacturing. It begins by stating that material selection is an important step in product design to minimize costs while meeting performance goals. It then discusses using material selection charts to compare properties like stiffness and density to help choose appropriate materials. The document outlines a four step strategy for material selection: 1) translation to identify design requirements, 2) screening out unsuitable materials, 3) ranking remaining candidates, and 4) seeking additional supporting information. Key material properties like function, constraints, and objectives are defined. Case studies on selecting materials for a bike and drink container are also provided.
This document summarizes the design of a cotter joint to connect two rods subjected to an axial tensile load of 28kN. It outlines the 10 potential failure modes of the joint and provides the calculations to size each component based on the material properties. The components are designed to have adequate strength against failure based on the permissible tensile, compressive, and shear stresses of the material. The summary provides the key dimensions determined, including a rod diameter of 30mm, spigot diameter of 34mm, socket diameter of 60mm, and cotter width of 45mm.
The document discusses several metal casting and molding processes including magnetic mould casting, centrifugal casting, and metal injection molding. Magnetic mould casting uses electromagnetism to form a mould out of steel shots for casting metals. Centrifugal casting involves pouring molten metal into a rotating mould to produce axisymmetric parts like pipes and cylinders. Metal injection molding mixes metal powder with a binder to create a feedstock that is molded and then undergoes debinding and sintering to produce high-strength metal parts.
This document contains instructions and procedures for experiments in a Heat Power Engineering Laboratory. It includes a bona fide certificate, instructions for students, a list of 11 experiments, and procedures and calculations for experiments on heat transfer through natural convection from a vertical cylinder, forced convection inside a horizontal tube, and determining temperature distribution and efficiency of a pin-fin apparatus using forced convection. Diagrams, observation tables, formulas, and sample calculations are provided for each experiment. The goal is to determine heat transfer coefficients and understand heat transfer processes like natural convection, forced convection, and heat transfer through fins.
PSG Design Data Book Pages Required For Gear DesignSagar Dhotare
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help regulate emotions and stress levels.
Water jet machine report mechanical reportMohammad Asif
A water jet cutter, also known as a water jet or water jet, is an industrial tool capable of cutting a wide variety of materials using a very high-pressure jet of water, or a mixture of water and an abrasive substance. The term abrasive jet refers specifically to the use of a mixture of water and abrasive to cut hard materials such as metal or granite, while the terms pure water jet and water-only cutting refer to water jet cutting without the use of added abrasives, often used for softer materials such as wood or rubber
Ceramic bearings are typically constructed with a ferrous inner and outer ring or race with ceramic balls in the place of steel. Ceramic bearings offer many advantages over all steel bearings, such as higher speed and acceleration capability, increased stiffness, lower friction and more. Ceramic balls are also nonconductive. Ceramic bearings are available in all standard industry configurations such as, angular bearings, thrust bearing, pillow block bearing, needle bearings, and roller bearings.
This document presents a major project on heat transfer study using COMSOL Multiphysics software. It was submitted by Suraj Kumar and Pankaj Kumar to the Department of Chemical Engineering at Sant Longowal Institute of Engineering & Technology to fulfill the requirements for a Bachelor of Engineering degree in Chemical Engineering. The project involves simulating a heat exchanger model in COMSOL to calculate the heat transfer coefficient and pressure drops. It includes sections on objectives, literature review on heat transfer mechanisms and heat exchangers, an overview of the COMSOL software, the heat exchanger modeling procedure, and conclusions.
Selective Laser Melting versus Electron Beam MeltingCarsten Engel
This document summarizes research on additive manufacturing technologies for metal applications. It discusses Sirris, an organization that provides technology services to industry, and their expertise in additive manufacturing. Two key additive manufacturing technologies for metals are described - Electron Beam Melting (EBM) and Laser Beam Melting (LBM). EBM uses an electron beam to sinter metal powder in a vacuum environment, while LBM uses a laser beam under argon gas. Their differences in terms of process parameters, material properties, and advantages/disadvantages are summarized. Metallurgical analysis shows EBM produces a uniform fine-grained microstructure while LBM microstructure depends on build orientation. Mechanical properties are also compared between the two technologies.
The document discusses the key processes involved in tyre manufacturing, including compounding and mixing rubber and other materials, milling and calendaring the rubber into sheets, extruding tread and other components, assembling the components on a tyre building machine, curing and vulcanizing the assembled tyre, and final inspection and finishing of the cured tyre. Tyre manufacturing requires combining many raw materials like various rubber compounds, carbon black, fabric, and steel wires and cables through mixing, shaping, building, and curing processes to produce the final product.
Pressure die casting is a manufacturing process where molten metal is injected under high pressure into a steel mold cavity. This allows for the rapid solidification of net-shaped metal components with tight tolerances. There are two main types - high pressure die casting for parts requiring close tolerances, and low pressure die casting for larger, less critical parts. Pressure die casting allows for high-volume production of complex parts and good dimensional accuracy.
The document is a catalog from Timken that provides information on their tapered roller bearings and related products. It includes an overview of Timken as a company that designs and manufactures high-performance mechanical components including bearings. The catalog contains detailed product information, specifications, and engineering guidance for the proper application and use of Timken's tapered roller bearings. It covers both metric and imperial sized bearings that can be used in applications across multiple industries.
Rolling bearings and seals in electric motors andgenerators đã chuyển đổivinh chu
This document discusses rolling bearings used in electric motors and generators. It covers key design requirements for bearings in electric machines including operating conditions, required uptime, maintenance needs, and manufacturing methods. It also discusses selecting the proper bearing type, lubricant, and lubrication method to optimize service life. Common bearing types for electric machines like ball, roller, and hybrid bearings are described along with examples of how to calculate bearing loads.
Anderson Greenwood is a world class manufacturer of industrial pressure relief valves, providing protection from system overpressure in vessels, tanks, piping, and other closed systems.
This document provides specifications and details for Danaher Motion's URS series compact ballscrew positioning tables. The URS series uses a unique "U" shaped guide rail and integrated bearing module to provide a highly rigid and compact design. This allows for space savings compared to conventional positioning tables. The integrated design simplifies installation and achieves high accuracy through features like a precision ground guide rail and carriage. The document includes specifications, dimensional drawings, motor and accessory options, and ordering information for the URS series.
This document provides information on Timken miniature and thin-section bearings, including:
- An overview of Timken and its expertise in precision bearings for mission-critical applications.
- Guidelines for shelf life and proper storage of grease-lubricated bearings, including maximum shelf life assumptions and storage recommendations.
- Details on different types of miniature and thin-section bearings available from Timken, along with engineering information, specifications, and selection guidance.
This document provides instructions for disassembling and reassembling a 2000 Series disc valve geroler motor. It includes exploded view drawings, lists of required tools, and step-by-step instructions for disassembly and reassembly. The disassembly instructions describe removing components like the valve housing, seals, valve assembly, geroler, wear plate, shaft/bearing assembly from the motor. The reassembly instructions describe pressing seals back into place and reinstalling the components in reverse order.
2007 johnson evinrude outboard 9.9 hp service repair manualfjskeksmemedc
This document provides information on safety warnings and trademarks related to outboard engine repair. It lists numerous safety warnings regarding working with engines, fuel systems, electrical components, and rotating parts. It also lists many registered trademarks owned by various companies that may be referenced in repair manuals.
2007 johnson evinrude outboard 9.9 hp service repair manualfujdjfjjskekmm
This document provides safety information and instructions for working on Evinrude/Johnson outboard motors. It lists numerous registered trademarks and outlines responsibilities of the manufacturer, dealer, and owner to ensure compliance with EPA emissions regulations. The document also explains various symbols and abbreviations used in the service manual.
2007 johnson evinrude outboard 9.9 hp service repair manualfujsjefjkskekfm
This document provides safety information and instructions for working on Evinrude/Johnson outboard motors. It lists registered trademarks and outlines responsibilities of the manufacturer, dealer, and owner to ensure engine emissions compliance. Symbols used in the manual are defined, including those for electrical components and values. Abbreviations are also listed to clarify terms used.
2007 johnson evinrude outboard 15 hp service repair manualfjkekfmefmm
This document provides information on safety warnings and trademarks related to outboard engine repair. It lists numerous safety warnings regarding working with engines, fuel systems, electrical components, and rotating parts. It also lists many registered trademarks owned by various companies that may be referenced in repair manuals.
2007 Johnson Evinrude Outboard 15Hp Service Repair Manualujfjjsjefksekm
This document provides safety information and instructions for working on Evinrude/Johnson outboard motors. It discusses hazards from rotating propellers, exhaust fumes, electrical shock, and fuel. The document emphasizes taking safety precautions like disconnecting batteries, securing the outboard, and working in a ventilated area. It also notes the importance of using authorized replacement parts and following torque specifications.
2007 johnson evinrude outboard 15 hp service repair manualfjsjjfkskeme
This document provides information on safety warnings and trademarks related to outboard engine service and repair. It lists numerous safety warnings regarding working with engines, fuel systems, electrical components, and rotating parts. It also lists many registered trademarks owned by various companies that are mentioned in the technical documentation.
2007 johnson evinrude outboard 9.9 hp service repair manualufjjskekmem
This document provides information on safety warnings and trademarks related to outboard engine repair. It lists numerous safety warnings regarding working with engines, fuel systems, electrical components, and rotating parts. It also lists many registered trademarks owned by various companies that produce components used in outboard engines.
This document provides an introduction and overview of clutches and brakes from Thomson. It includes:
- Descriptions of the operation and design principles of wrap spring and friction clutches and brakes.
- Selection charts to help users choose the appropriate product based on the required motion type or capability.
- Product listings and specifications for a range of wrap spring clutches/brake packages and engineered friction clutches and brakes.
- Guidelines for selecting, applying, and servicing Thomson clutches and brakes.
Similar to Bearing handbook for electric motor skf (14)
High performance foil rotor improves de ink pulp screenducnamtrinh
- A novel dual element foil (DEF) rotor was developed to improve stickies removal efficiency in paper recycling screening while using less power than conventional rotors.
- In a mill trial, the DEF rotor achieved 42% lower power consumption than the existing rotor at an optimized lower tip speed, while maintaining screen capacity and runnability. It also achieved higher stickies removal efficiency.
- The DEF rotor design optimizes the negative pressure pulse for cleaning while minimizing the positive pulse that could force stickies through slots. This allows for more efficient screening at lower tip speeds and power usage.
This chapter provides an introduction to basic accounting concepts for developers. It discusses the chart of accounts, which lists asset, liability, and equity accounts with their balances, and journals, which record business transactions and their impact on account balances. The key accounting equation of Assets = Liabilities + Owner's Equity is introduced, showing how the accounts must balance. Understanding these fundamental accounting terms and concepts will help developers communicate effectively with business clients.
This document provides an overview of steam engineering principles from Spirax Sarco, a manufacturer of steam system products. It defines key steam terms and concepts, explains how steam is formed through the boiling of water, and discusses steam generation in boilers. It also covers steam piping design, metering of steam and condensate, control of steam through valves and traps, and condensate management. The goal is to educate on the fundamentals of steam systems and efficient steam usage.
This document is a user manual for the HP-N-Ex Ionising Air Blower. It describes the safety instructions, use, technical specifications, installation, operation, maintenance, faults, repair, disposal, and spare parts for the product. The blower neutralizes electrostatically charged surfaces using an integrated anti-static bar that produces positive and negative ions in an air flow. It is classified for use in explosive atmospheres.
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slackshyamraj55
Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
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Gopinath Rebala
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Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
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My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
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Building RAG with self-deployed Milvus vector database and Snowpark Container...Zilliz
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“An Outlook of the Ongoing and Future Relationship between Blockchain Technologies and Process-aware Information Systems.” Invited talk at the joint workshop on Blockchain for Information Systems (BC4IS) and Blockchain for Trusted Data Sharing (B4TDS), co-located with with the 36th International Conference on Advanced Information Systems Engineering (CAiSE), 3 June 2024, Limassol, Cyprus.
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
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Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
2. The world’s best machinery is
SKF Equipped
Improve your product’s performance with SKF®
engineering
and application knowledge, design and testing expertise,
and a wide range of solutions.
Your customers are continually raising their expectations of
product performance and reliability—demanding equipment
that consumes less energy, runs quieter, faster and longer,
and requires less maintenance. Frequently, this also means
lighter, more compact designs.
To meet these growing challenges and stay competitive,
you need a trusted source of knowledge and application
experience to provide you with solutions that work.
And for long-term results, you need a working partner
that offers one source of responsibility from concept to
completion. That source is SKF.
Knowledgeable solutions
From a position as the world’s leading bearing manufacturer,
SKF has evolved to being a provider of cost-effective and
knowledgeable solutions. You can take advantage of SKF
knowledge through our proprietary services and software to
shorten the time required to develop and test your product.
SKF knowledge-engineering services, for example, include
life calculation analysis, dynamic systems modelling, and
3-dimensional virtual test rigs to simulate and troubleshoot
system vibration. SKF product solutions go beyond bearings,
housings and seals, to include complete lubrication systems,
industry-leading condition monitoring systems, advanced
linear and rotary actuation systems, and unique solutions
in mechatronics—combining mechanical and electronic
elements in a single design.
Get SKF Equipped
When your product is “SKF Equipped”, it tells your
customers that your resources include the best in
state-of-the-art technology, and that your prod-
ucts contain some of the very best components
available on the market.
4. 2
1. Handle with care. Never pound directly on a bearing or ring. If a
bearing is dropped, it is best not to install it. Store bearings horizontally in a dry
place in their original unopened package and never place bearings on a dirty
surface; periodically turn over sealed and shielded bearings to prevent grease
from settling to one side.
2. Inspect the shaft and housing. Check for size and damage; remove
nicks and burrs with emery paper, and wipe clean with a soft cloth. Replace or
repair shafts and housings showing obvious signs of wear or damage. A shaft
placed in a vise for mounting should be protected from vise jaws with a sheet of
soft metal.
3. Avoid overheating. During heat-mounting operations, never bring a
flame in direct contact with the bearing and never heat beyond 230°F. Also,
immediately hold a heat-mounted bearing in place against the shaft shoulder
until it cools and locks in place. Otherwise, the bearing may creep away from
the proper position.
4. Use identical replacement bearings. Replacement bearings should be
identical to the bearings they replace. Contact an SKF Authorized Distributor or
SKF for interchange information.
5. Use the right tool for the job. Induction heaters, oil injection kits, and
hydraulic nuts are among the specialized tools available for mounting and
dismounting bearings over 4 in. O.D. Their use lowers the possibility of
damaging bearings and speeds the process.
6. Pay attention to the bearing’s press fit. Use a press for any bearing
under 4 in. O.D. Pressure should be applied only to the bearing ring with the
press fit, which is usually the ring that rotates after the bearing is installed.
Pressure to the ring without the press fit will damage the raceways.
Installation tips for
maximum bearing operation
5. 3
7. Don’t wash new bearings. Bearing manufacturers take great care to
package and ship bearings that are dirt-free and ready for lubrication. There’s
usually no need to wash them or remove the protective slushing compound.
8. Proper lube is critical. Bearing manufacturers evaluate several factors
before determining the type of lubricant required for specific bearings. Be sure
to follow their recommendations. Temperature and contamination conditions
will influence the frequency of lubrication changes.
9. Rotate idle bearings. Bearings installed in equipment that is subject to
vibration while the shafts are stationary may incur false brinelling damage,
which also occurs when equipment is not properly protected during shipment.
It can appear as bright, polished depressions on the inner and/or outer races,
as well as on the rolling elements.
10. Look for danger signs. Keep alert for three sure signs of improper
bearing operation: excessive noise and increases in vibration and temperature.
Troubleshooting instruments like hand-held vibration pens, digital
thermometers, and electronic stethoscopes help spot bearings in poor
operating condition.
11. Find the cause of bearing failures. Bearings are built to last, so
frequent failures may point to an installation or lubrication problem. SKF
bearing analysis experts can identify the cause of bearing failure and help you
prevent it in the future.
12. The contact between the bearing ring and a properly machined and
dimensioned bearing seat should not require the use of bonding agents to
prevent movement or turning.
6. 4
There is a speed limit to which rolling bearings can be operated. Generally, it is
the operating temperature that can be permitted with respect to the lubricant
being used or to the material of the bearing components that sets the limit. The
speed at which this limiting bearing temperature is reached depends on the
frictional heat generated in the bearing (including any externally applied heat)
and the amount of heat that can be transported away from the bearing.
Bearing type and size, internal design, load, lubrication and cooling conditions
as well as cage design, accuracy and internal clearance all play a part in deter-
mining speed capability. In the accompanying tables two speeds are listed:
(Thermal) Reference Speed and (Kinematic) Limiting Speed.
Warning: The new Reference and Limiting Speeds are not to be used as a
direct substitution for the previous Oil and Grease speed ratings. Consult SKF
to determine the actual reference speed limit for your operating conditions.
Reference speeds
The reference speed for a given bearing represents the permissible operating
speed of said bearing when subjected to the specific operating conditions of
load, lubrication type and method as outlined in ISO 15312. This standard has
been established for oil lubrication but is also valid for grease and uses the fol-
lowing reference conditions:
• A temperature increase of 90° F (50° C) above an ambient temperature of
68° F (20° C), (thus a bearing temperature of 158° F (70° C), measured on
the bearing stationary outer ring or housing washer.
• Radial bearing: a constant radial load, being 5% of the basic static load rating Co.
• Thrust bearing: a constant axial load, being 2% of the basic static load rating Co.
• Open bearings with Normal clearance.
For oil lubricated bearings:
• Lubricant: mineral oil without EP-additives having a kinematic viscosity at
158° F (70° C) of: v = 12 mm2
/s (ISO VG32) for radial bearings, and
v = 24 mm2
/s (ISO VG68) for thrust roller bearings
• Oil bath with the oil reaching up to the middle of the rolling element in the
lowest position.
For grease lubricated bearings:
• Regular lithium soap grease with mineral base oil having a viscosity of 100 to
200 mm2
/s at 104° F (40° C) (e.g. ISO VG 150).
• Filling approximately 30% of the free space in the bearing.
The reference speed will be reached after 10 to 20 hours running time. Under
these specific conditions the reference speed for oil and grease lubrication will
be equal.
Speed ratings
7. 5
Speeds above the reference speed
It is possible to operate bearings at speeds above the reference speed if the
bearing friction can be reduced, for example by lubrication systems with small,
accurately measured quantities of lubricant or when heat can be removed
from the bearing by circulating oil lubrication with cooling of the oil, by cooling
ribs on the housing, or by directed cooling air streams.
Any increase in speed above the reference speed without taking any of
these precautions would only cause bearing temperature to rise excessively.
An increase of bearing temperature means that lubricant viscosity is low-
ered and film formation is made more difficult, leading to even higher fric-
tion and further temperature increases. If, at the same time, the operational
clearance in the bearing is reduced because of increased inner ring temper-
ature, the final consequence would be bearing seizure.
Limiting speeds
The speed limit is determined by criteria that include: the stability and or
strength of the cage, lubrication of cage guiding surfaces, centrifugal and gyra-
tory forces acting on the rolling elements, and other speed-limiting factors.
Experience gained from laboratory tests and practical applications indicates
that there are maximum speeds that should not be exceeded for technical rea-
sons or because of the very high costs involved.
Limiting Speeds shown in the tables are based on the demands of high speed
running applications and are valid only for the specific design and cage design
shown in the tables. It is possible to run bearings faster than the limiting
speeds, but several factors must be reviewed and improved such as the run-
ning accuracy, cage material, lubrication, heat dissipation and design of the
bearing. It is therefore advisable to contact SKF Applications Engineering for
advice. For enclosed and open bearings using grease lubrication, additional
parameters have to be considered such as lubrication of cage guiding surfaces
and the shear strength of the lubricant, which is determined by the base oil
and thickener.
Open balls bearings with low friction typically have Reference Speeds greater
than the Limiting Speed. In these cases the permissible speed must be calcu-
lated from the operating conditions and the lower value between the permissi-
ble and Limiting speed used.
18. 16
204 24 lb. 25 lb. 27 lb.
205 32 33 36
206 45 48 52
207 62 65 72
208 76 83 93
209 92 99 112
210 108 116 131
211 132 143 164
212 160 174 202
213 183 211 248
214 204 235 280
215 225 261 310
216 261 307 368
217 299 355 429
218 339 405 494
219 383 463 568
220 429 522 648
221 514 588 735
222 572 658
224 681 796
226 797 938
228 948 1126
230 1117 1340
232 1305 1585
234 1485 1803
236 1646 2025
238 1872 2321
240 2117 2646
Minimum radial load requirements
Cylindrical roller bearings
200 EC series
minimum radial load required @
Bearing 900 rpm 1800 rpm 3600 rpm
Note: Minimum radial loads are necessary for satisfactory rolling bearing operation.
This is particularly true for roller bearings running at high speeds, where inertia forces
and friction from the lubricant may cause damaging sliding –rather than
rolling–movements between the rollers and raceways.
19. 17
304 28 lb. 29 lb. 31 lb.
305 41 43 46
306 56 59 65
307 72 76 84
308 79 84 95
309 115 124 141
310 143 156 182
311 197 216 254
312 216 239 285
313 240 266 320
314 280 314 382
315 322 364 448
316 367 417 517
317 415 475 593
318 467 537 678
319 524 606
320 603 704
321 670 788
322 764 907
324 914 1097
326 1084 1316
328 1248 1515
330 1454 1790
332 1688 2110
334 1924 2426
336 2117 2646
338 2468
340 2676
Minimum radial load requirements
Cylindrical roller bearings
300 EC series
minimum radial load required @
Bearing 900 rpm 1800 rpm 3600 rpm
Note: Minimum radial loads are necessary for satisfactory rolling bearing operation.
This is particularly true for roller bearings running at high speeds, where inertia forces
and friction from the lubricant may cause damaging sliding –rather than
rolling–movements between the rollers and raceways.
20. 18
6204 .10 oz. 20,000 hr 14,000 hr 12,200 hr
6205 .12 oz. 19,100 13,500 9,000
6206 .15 oz. 18,200 13,000 8,000
6207 .19 oz. 17,300 12,500 7,000
6208 .23 oz. 16,500 12,000 6,500
6209 .25 oz. 16,400 11,500 5,900
6210 .28 oz. 16,250 11,200 5,300
6211 .33 oz. 16,150 10,500 4,600
6212 .38 oz. 16,000 10,000 4,000
6213 .43 oz. 15,600 9,600 3,200
6214 .47 oz. 15,200 9,200 2,600
6215 .50 oz. 14,800 8,800 2,000
6216 .55 oz. 14,500 8,500 1,500
6217 .65 oz. 14,400 8.250 1,200
6218 .74 oz. 14,250 8,000 900
6219 .84 oz. 14,100 7,750 650
6220 .95 oz. 14,000 7,500
Grease relube recommendation
Deep groove ball bearings
6200 series
Bearing quantity interval @
900 rpm 1800 rpm 3600 rpm
Note: The relubrication intervals shown are based on a good quality lithium based
grease at a maximum temperature of 160°F. Reduce the interval by half for each
27°F above 160°F, or for vertical applications. (High temperature greases, like
polyurea, can operate for longer periods of time than those listed above.) Lubricate
more often in applications where there is a risk of heavy solid and chemical
contamination. Consult manufacturer or SKF application engineering for details.
LGHP 2 ball and roller bearing grease
LGHP 2 is a polyurea-based grease designed for use in electric motors. Unlike
many polyurea-based greases, which are inherently noisy during operation,
LGHP 2 meets strict SKF noise requirements. Each batch is blended and
selected for consistency and adherence to quietness standards. The grease is
also recommended for applications where long life is required.
With LGHP 2, users can often avoid compatibility problems when
relubricating bearings. LGHP 2 is the factory fill grease used in SKF
bearings under the designation GXN.
21. 19
6304 .12 oz. 20,000 hr 14,000 hr 12,200 hr
6305 .16 oz. 19,100 13,500 9,000
6306 .21 oz. 18,200 13,000 8,000
6307 .26 oz. 17,300 12,500 7,000
6308 .32 oz. 16,500 12,000 6,500
6309 .39 oz. 16,400 11,500 5,900
6310 .46 oz. 16,250 11,200 5,300
6311 .54 oz. 16,150 10,500 4,600
6312 .63 oz. 16,000 10,000 4,000
6313 .72 oz. 15,600 9,600 3,200
6314 .81 oz. 15,200 9,200 2,600
6315 .92 oz. 14,800 8,800 2,000
6316 1.03 oz. 14,500 8,500 1,500
6317 1.14 oz. 14,400 8,250 1,200
6318 1.26 oz. 14,250 8,000
6319 1.40 oz. 14,100 7,750
6320 1.57 oz. 14,000 7,500
Grease relube recommendation
Deep groove ball bearings
6300 series
Bearing quantity interval @
900 rpm 1800 rpm 3600 rpm
Note: The relubrication intervals shown are based on a good quality lithium based
grease at a maximum temperature of 160°F. Reduce the interval by half for each
27°F above 160°F, or for vertical applications. (High temperature greases, like
polyurea, can operate for longer periods of time than those listed above.) Lubricate
more often in applications where there is a risk of heavy solid and chemical
contamination. Consult manufacturer or SKF application engineering for details.
22. 20
204 .10 oz. 15,000 hr 10,000 hr 5,000 hr
205 .12 oz. 14,500 9,500 4,500
206 .15 oz. 14,000 9,000 4,000
207 .19 oz. 13,500 8,500 3,500
208 .23 oz. 13,000 8,000 3,000
209 .25 oz. 12,500 7,500 2,700
210 .28 oz. 12,000 7,000 2,400
211 .33 oz. 11,500 6,500 2,100
212 .38 oz. 11,000 6,000 1,700
213 .43 oz. 10,750 5,500 1,400
214 .47 oz. 10,500 5,000 900
215 .50 oz. 10,250 4,500 800
216 .55 oz. 10,000 4,000 700
217 .65 oz. 9,500 3,500 500
218 .74 oz. 9,000 3,000 200
219 .84 oz. 8,500 2,500
220 .95 oz. 8,000 2,100
Grease relube recommendation
Cylindrical roller bearings
N, NJ, NU 200 EC series
Bearing quantity interval @
900 rpm 1800 rpm 3600 rpm
Note: The relubrication intervals shown are based on a good quality lithium based
grease at a maximum temperature of 160°F. Reduce the interval by half for each
27°F above 160°F, or for vertical applications. (High temperature greases, can
operate for longer periods of time than those listed above.) Lubricate more often in
applications where there is a risk of heavy solid and chemical contamination. Consult
manufacturer or SKF application engineering for details.
23. 21
304 .12 oz. 15,000 hr 10,000 hr 5,000 hr
305 .16 oz. 14,500 9,500 4,500
306 .21 oz. 14,000 9,000 4,000
307 .26 oz. 13,500 8,500 3,500
308 .32 oz. 13,000 8,000 3,000
309 .39 oz. 12,500 7,500 2,700
310 .46 oz. 12,000 7,000 2,400
311 .54 oz. 11,500 6,500 2,100
312 .63 oz. 11,000 6,000 1,700
313 .72 oz. 10,750 5,500 1,400
314 .81 oz. 10,500 5,000 900
315 .92 oz. 10,250 4,500
316 1.03 oz. 10,000 4,000
317 1.14 oz. 9,500 3,500
318 1.26 oz. 9,000 3,000
319 1.40 oz. 8,500 2,500
320 1.57 oz. 8,000 2,100
Grease relube recommendation
Cylindrical roller bearings
N, NJ, NU 300 EC series
Bearing quantity interval @
900 rpm 1800 rpm 3600 rpm
Note: The relubrication intervals shown are based on a good quality lithium based
grease at a maximum temperature of 160°F. Reduce the interval by half for each
27°F above 160°F, or for vertical applications. (High temperature greases, can
operate for longer periods of time than those listed above.) Lubricate more often in
applications where there is a risk of heavy solid and chemical contamination. Consult
manufacturer or SKF application engineering for details.
28. 26
symbols
ABMA SKF description
1. Bore diameter
90 XX18 ABMA/5 = SKF
exc. 17 = XX03
15 = XX02
12 = XX01
10 = XX00
2. Bearing type
BC 6XXX Conrad
BL XXX maximum capacity
BN 7XXX CD angular contact (15°)
7XXX CC angular contact (12°)
BA 7XXX ACD angular contact (25°)
BT 7XXX B angular contact (40°)
3. Dimension series
00 X0XX extra light
02 X2XX light
03 X3XX medium
04 X4XX heavy
4. Cage type
X - any type
J J pressed steel
Y, K Y pressed brass
M M machined brass
5. Seals/shields or duplex mounting
X - character separator
P Z (PP ’ 2Z, two shields)
E RS,RS1,RSH (EE ’ 2RS, two seals)
RR DB duplex back-to-back
UU DF duplex face-to-face
TT DT duplex tandem
ABMAdSKF
Product number comparison
90 BC 03 J PP N 3 0 X
1 2 3 4 5 6 7 8 9 10
6 3 18 2Z N C3 GJN
2 3 1 5 6 4 8 7 10 9
29. 27
symbols
ABMA SKF description
6. Snap ring and groove
N N groove without ring
A NB groove without ring on same
side as seal/shield
G NR groove with ring
C NBR groove with ring on same
side as seal/shield
7. Radial clearance/preload
0 - normal clearance
1 C1 tighter than C2
2 C2 tighter than normal
3 C3 looser than normal
4 C4 looser than C3
5 C5 looser than C4
7 GA light preload
8 GB medium preload
9 GC heavy preload
8. Tolerance class
0 - normal, ABEC1, ISO P7
6 P6 ABEC 3, ISO P6
5 P5 ABEC 5, ISO P5
4 P4 ABEC 7, ISO P4
2 P9A ABEC 9
9 Lubricant
X - any slush or grease
A - refer to manufacturer
10. Special features
X26 (consult SKF Engineering)
X27 S0 heat stabilized to 150° C
X28 S1 heat stabilized to 200° C
ABMAdSKF
Product number comparison
90 BC 03 J PP N 3 0 X
1 2 3 4 5 6 7 8 9 10
6 3 18 2Z N C3 GJN
2 3 1 5 6 4 8 7 10 9
30. 28
Comparative Viscosity Classifications
2000 70
60
50
40
30
20
10
9
8
7
6
5
4
1000
800
600
500
400
300
200
100
80
60
50
40
30
20
10
8
6
5
4
3
2
300
200
100
90
80
70
60
55
50
45
40
10000
8000
6000
5000
4000
3000
2000
600
800
1000
1500
500
400
300
200
150
100
80
70
60
50
40
35
32
250W
140W
90W
85W
80W
75W
5W
1
2
3
4
5
6
7
8
8A
1500
1000
680
460
320
220
150
100
68
46
32
22
15
10
7
5
3
2
10W
20W
30W
40W
50W
Viscosities based on 95 VI single-grade oils.
ISO grades are specified at 40˚ C.
AGMA grades are specified at 100˚F.
SAE 75W, 80W, 85W, and 5 and 10W
specified at low temperature (below -17˚F = 0˚C).
Equivalent viscosities for 100˚F and 210˚F are shown.
SAE 90 to 250 and 20 to 50 specified at 210˚F (100˚C).
Comparison of various viscosity classification methods
mm2
/s at
40˚C
mm2
/s at
100˚C
Kinematic
viscosities
Viscosity equivalents
Saybolt
viscosities
ISO VG AGMA grades SAE grades
crankcase oils
SAE grades
gear oils
SUS/100˚F SUS/210˚F
NOTE: ISO mineral lubricants are recommended over SAE and AGMA
lubricants for centrifugal pump applications.
31. Prolong your life
The life of your electric motors—
with INSOCOAT®
bearings from SKF®
.
Conventional motor bearings get “fried” by
the electrical current passing through them.
The result is premature failure and high
maintenance costs. The SKF®
solution is
INSOCOAT®
inverter-duty bearings that
require no rework prior to mounting.
These drop-in replacement bearings feature
a coating of aluminum oxide on the inner or
outer ring, providing an insulating barrier
which prevents electrical current from
causing microscopic “melting” of the bearing.
In addition, INSOCOAT bearings are treated
with a sealant that resists humid
environments, heat and chemicals.
INSOCOAT bearings are 100% performance
tested to 1,000 V DC with a minimum ohmic
resistance of 50 M and available for shaft
diameters up to 155 mm.
SKF USA Inc.
www.skfusa.com