This is the basic information about bearing, this includes bearing type, selection of bearing depending on exerting loads by the machine on bearings and lubrication method of bearing.
summer training report on NBC for B.TECH studentsAbhishek Gora
The document discusses taper roller bearings, which can take both axial and radial loads. Taper roller bearings are composed of an inner race, outer race, rolling elements, and a cage. They are available in single, double, and four row configurations. Taper roller bearings are used in heavy duty applications like construction equipment, axles, gearboxes, and engine motors due to their ability to handle large loads and their durability.
This document provides an overview of bearing manufacturing by Benara Udyog Limited. It discusses the company background, types of bearings including sliding contact bearings and rolling contact bearings. The key types of rolling contact bearings are described as ball bearings, rolled bearings, and thrust ball bearings. The document then outlines the manufacturing process for ball bearings, including cutting, deflashing, heat treating, and assembly steps. It concludes by thanking the Mechanical Department for their guidance and assessment.
Presentation on NBC Bearing by Chirag JoshiChirag Joshi
The document provides information about National Bearing Company (NBC). It discusses the different types of bearings NBC manufactures, including ball bearings, tapered roller bearings, cylindrical roller bearings, and spherical roller bearings. The document outlines the manufacturing process for ball bearings at NBC, including steps like forging, heat treatment, grinding, and assembly. It also discusses features and applications of ball bearings.
Koyo bearings can maximize productivity, whether you're moving mountains or making microchips learn to (do) why you really need koyo bearing like a professional.
Optimised designs can be supplied in taper roller bearings with high strength cages and, for arduous applications, in a range of advanced special materials.
This document discusses different types of bearings used in mechanical engineering. It describes bearings as machine components that support another element and allow relative motion while carrying a load. There are two main types - sliding contact bearings and rolling contact bearings. Rolling contact bearings, also called anti-friction bearings, use balls or rollers between elements and have lower coefficients of friction than sliding contact bearings. The document further details types of rolling contact bearings like ball bearings, roller bearings, and their construction and applications.
A bearing is a machine element that supports another moving element, known as a journal, and allows relative motion between their surfaces while carrying loads. There are two main types of bearings: sliding contact bearings and rolling contact bearings. Sliding contact bearings include journal or sleeve bearings, which support radial loads and come in full or partial designs. Rolling contact bearings use balls or rollers between surfaces to reduce friction. Key considerations in bearing design include load capacity, friction, lubrication, and heat dissipation.
summer training report on NBC for B.TECH studentsAbhishek Gora
The document discusses taper roller bearings, which can take both axial and radial loads. Taper roller bearings are composed of an inner race, outer race, rolling elements, and a cage. They are available in single, double, and four row configurations. Taper roller bearings are used in heavy duty applications like construction equipment, axles, gearboxes, and engine motors due to their ability to handle large loads and their durability.
This document provides an overview of bearing manufacturing by Benara Udyog Limited. It discusses the company background, types of bearings including sliding contact bearings and rolling contact bearings. The key types of rolling contact bearings are described as ball bearings, rolled bearings, and thrust ball bearings. The document then outlines the manufacturing process for ball bearings, including cutting, deflashing, heat treating, and assembly steps. It concludes by thanking the Mechanical Department for their guidance and assessment.
Presentation on NBC Bearing by Chirag JoshiChirag Joshi
The document provides information about National Bearing Company (NBC). It discusses the different types of bearings NBC manufactures, including ball bearings, tapered roller bearings, cylindrical roller bearings, and spherical roller bearings. The document outlines the manufacturing process for ball bearings at NBC, including steps like forging, heat treatment, grinding, and assembly. It also discusses features and applications of ball bearings.
Koyo bearings can maximize productivity, whether you're moving mountains or making microchips learn to (do) why you really need koyo bearing like a professional.
Optimised designs can be supplied in taper roller bearings with high strength cages and, for arduous applications, in a range of advanced special materials.
This document discusses different types of bearings used in mechanical engineering. It describes bearings as machine components that support another element and allow relative motion while carrying a load. There are two main types - sliding contact bearings and rolling contact bearings. Rolling contact bearings, also called anti-friction bearings, use balls or rollers between elements and have lower coefficients of friction than sliding contact bearings. The document further details types of rolling contact bearings like ball bearings, roller bearings, and their construction and applications.
A bearing is a machine element that supports another moving element, known as a journal, and allows relative motion between their surfaces while carrying loads. There are two main types of bearings: sliding contact bearings and rolling contact bearings. Sliding contact bearings include journal or sleeve bearings, which support radial loads and come in full or partial designs. Rolling contact bearings use balls or rollers between surfaces to reduce friction. Key considerations in bearing design include load capacity, friction, lubrication, and heat dissipation.
Bearings are devices that allow rotational or linear movement between contacting surfaces while reducing friction and handling loads. There are two main types: rolling contact bearings, which use balls or rollers to transfer loads, and journal or sleeve bearings, which use a lubricating film. Key design considerations for selecting bearings include life, speed, space limitations, accuracy, and load type (radial, thrust, or both). Bearing catalogs provide load and life ratings to help selection.
A journal bearing supports a rotating shaft by using an oil film between the shaft (journal) and the bearing. Oil is fed into the bearing through an inlet and dragged by the shaft into the converging gap, increasing fluid pressure and creating a hydrodynamic lift. Axial oil grooves provide space to prevent oil loss. Journal bearings handle high loads and speeds due to minimal metal contact from the oil film and provide smooth, quiet operation but require a large oil supply.
This document summarizes information about journal bearings. It defines a journal bearing as a block of cast iron with a hole for supporting a rotating shaft. It describes how lubricating oil is fed into the bearing and dragged by the shaft, creating hydrodynamic lift and resisting shaft motion. There are three types of journal bearings: dry, hydrodynamic, and hydrostatic. The document discusses the pressure distribution in a journal bearing due to the flow of viscous fluid in a converging channel, and defines the eccentricity ratio as the ratio of eccentricity to radial clearance. It concludes with discussing the study of bearing functions and types, and viewing the pressure distribution curve of a journal bearing.
This document discusses different types of bearings, including their functions, components, and applications. It begins by defining bearings and their purpose, then describes the three main types: rolling element bearings, sliding bearings, and elastomeric bearings. It focuses on rolling element bearings, explaining the components and types of ball bearings and roller bearings. Other bearing types discussed include mounted bearings, linear bearings, self-lubricating bearings, and elastomeric bearings. Guidelines for selecting the proper bearing for an application based on load and life calculations are also provided.
Bearings are machine elements designed to reduce friction, carry loads, and guide moving parts. They come in many types including ball bearings, roller bearings, and thrust bearings which use either rolling or sliding friction. Over time, bearings have evolved from early wheels to modern designs with inner and outer rings and cages to separate rolling elements. Proper bearing selection, installation, and maintenance are important to maximize bearing life.
Do you know about Cylindrical Roller Bearings?SKP Bearings
There are numerous kinds of Cylindrical Roller Bearing available in India and global marketplace. Here, Here, we share some essential points about the cylindrical roller bearings and their characteristics.
,bearings ,function of bearing ,footstep or pivot bearing ,bush and direct-lined housing ,thrust bearing ,journal bearing ,ball and roller bearings ,types of rolling bearing ,sliding contact bearing ,applications of roller bearings
Rolling contact bearings are called antifriction bearings because they have lower friction than sliding contact bearings. The document discusses the advantages and types of rolling contact bearings, including ball bearings and different types of roller bearings. It also covers standard dimensions, load ratings, reliability, materials used, and lubrication of ball and roller bearings.
A bearing is a device that supports load and reduces friction between moving parts. There are two main types: plain/slider bearings and rolling/anti-friction bearings. Rolling bearings use balls or rollers to create separation between surfaces and are more commonly used. Common bearing materials include metals, alloys, and some non-metals. Bearings must be properly selected, mounted, lubricated, and maintained to maximize their lifespan and prevent premature failure.
Within this brochure you will find a brief introduction to NSK Super Precision Bearings and their benefits, including a section on upgrading to allow for better performance, increased life and reliability.
NSK Super Precision Bearings allow for high speed and accurate running while maintaining extreme rigidity
This document discusses thrust bearings, which are machine components that support axial loads and constrain rotational motion. It describes how thrust bearings reduce friction in automobiles, aircrafts, manufacturing equipment, and more. The document categorizes different types of thrust bearings, including ball thrust bearings, tapered roller thrust bearings, cylindrical roller thrust bearings, spherical roller thrust bearings, and needle roller thrust bearings. It provides a high-level overview of thrust bearings and their applications before diving into specific types.
Automobile bearings are used in wheel hubs, engine components, clutches, and other parts. They come in various sizes and types to suit different applications. Bearings for high-speed railcars are made of strong, lightweight aluminum alloys to reduce weight and improve stability at high speeds. Slewing bearings can bear large axial, radial, and overturning loads and are used in applications that require rotation. Needle roller bearings are compact and rigid, making them suitable for applications where space is limited like automobiles, machines, and electronics.
Bearings are selected based on bearing life and reliability, speed, space limitations, accuracy, and load characteristics. The main types of bearings include ball bearings, roller bearings, thrust bearings, and linear bearings. Key factors in selecting the right bearing include radial load capacity, thrust load capacity, misalignment tolerance, and application-specific requirements. Proper bearing selection depends on understanding the bearing design and ratings.
This document discusses bearings and their functions. It describes how bearings support rotating shafts and reduce friction to allow for smooth rotation. There are two main types of bearings - plain/slider bearings which have a large contact area and high friction, and rolling/ball bearings which have less contact area and lower rolling friction. Ball and roller bearings are further described as having races, balls/rollers, and a cage that separates the balls to reduce friction. Common ball and roller bearing types and their applications are also outlined.
Rolling element bearings transmit loads through rolling contact and provide lower coefficients of friction than sliding contact bearings. They are composed of an inner race, outer race, rolling elements (balls or rollers), and a cage. Ball bearings are further classified as deep groove, angular contact, or filled notch types. Roller bearings use cylindrical or tapered rollers and have higher load capacity than ball bearings. Bearing life is rated based on the number of revolutions or hours it can operate before spalling or pitting failure occurs, with an L10 life rating meaning 10% of tested bearings will fail by that point.
The document discusses CG-1 hydrodynamic bearings produced by HTB corporation. The bearings can operate continuously at temperatures up to 400°F without external cooling, unlike traditional bearings that require cooling below 200°F. The CG-1 bearings use modern materials like high temperature polymers instead of babbitt metals, can improve strength and efficiency over traditional designs, and reduce costs by eliminating external cooling needs.
There are three main types of bearings: rolling element bearings, bushings, and journal bearings. Rolling element bearings have balls or rollers that reduce friction. Bushings use sliding contact between surfaces, with materials chosen to minimize wear. Journal bearings use a fluid film to separate sliding surfaces.
Bearing life is calculated theoretically based on the number of cycles for 10% of bearings to develop a specified size spall or pit due to subsurface fatigue cracks. While the calculation assumes maximum system loads, average loads are 50-80% of maximum, increasing bearing life. Proper lubrication is important to maximize actual bearing life in applications.
This document discusses bearings and lubrication. It defines bearings as any support in direct contact with a moving machine part that is designed to minimize friction. The main types of bearings are described as anti-friction bearings, which provide rolling contact, and plain bearings, which have sliding contact. Anti-friction bearings like ball and roller bearings are advantageous because they have lower starting friction than plain bearings. Plain bearings can use materials like bronze and are simpler but have higher wear. Proper lubrication is also discussed, including different lubrication systems like oil misting which has advantages like lower temperatures and positive pressure prevention of contamination.
Antifrcition bearings and lubrication.pptxssuserf66787
This document provides information about antifriction bearings and bearing lubrication. It discusses how rolling bearings use balls or rolling elements to minimize friction between bearing rings. It also describes how grease and oil are used as lubricants, with grease being preferred for applications where continuous oil supply is not possible. Grease provides lubrication, prevents corrosion and seals out dirt. The document discusses EHD lubrication principles for rolling bearings and explains how grease properties and NLGI grades are selected based on the application and operating conditions.
Bearings are devices that allow rotational or linear movement between contacting surfaces while reducing friction and handling loads. There are two main types: rolling contact bearings, which use balls or rollers to transfer loads, and journal or sleeve bearings, which use a lubricating film. Key design considerations for selecting bearings include life, speed, space limitations, accuracy, and load type (radial, thrust, or both). Bearing catalogs provide load and life ratings to help selection.
A journal bearing supports a rotating shaft by using an oil film between the shaft (journal) and the bearing. Oil is fed into the bearing through an inlet and dragged by the shaft into the converging gap, increasing fluid pressure and creating a hydrodynamic lift. Axial oil grooves provide space to prevent oil loss. Journal bearings handle high loads and speeds due to minimal metal contact from the oil film and provide smooth, quiet operation but require a large oil supply.
This document summarizes information about journal bearings. It defines a journal bearing as a block of cast iron with a hole for supporting a rotating shaft. It describes how lubricating oil is fed into the bearing and dragged by the shaft, creating hydrodynamic lift and resisting shaft motion. There are three types of journal bearings: dry, hydrodynamic, and hydrostatic. The document discusses the pressure distribution in a journal bearing due to the flow of viscous fluid in a converging channel, and defines the eccentricity ratio as the ratio of eccentricity to radial clearance. It concludes with discussing the study of bearing functions and types, and viewing the pressure distribution curve of a journal bearing.
This document discusses different types of bearings, including their functions, components, and applications. It begins by defining bearings and their purpose, then describes the three main types: rolling element bearings, sliding bearings, and elastomeric bearings. It focuses on rolling element bearings, explaining the components and types of ball bearings and roller bearings. Other bearing types discussed include mounted bearings, linear bearings, self-lubricating bearings, and elastomeric bearings. Guidelines for selecting the proper bearing for an application based on load and life calculations are also provided.
Bearings are machine elements designed to reduce friction, carry loads, and guide moving parts. They come in many types including ball bearings, roller bearings, and thrust bearings which use either rolling or sliding friction. Over time, bearings have evolved from early wheels to modern designs with inner and outer rings and cages to separate rolling elements. Proper bearing selection, installation, and maintenance are important to maximize bearing life.
Do you know about Cylindrical Roller Bearings?SKP Bearings
There are numerous kinds of Cylindrical Roller Bearing available in India and global marketplace. Here, Here, we share some essential points about the cylindrical roller bearings and their characteristics.
,bearings ,function of bearing ,footstep or pivot bearing ,bush and direct-lined housing ,thrust bearing ,journal bearing ,ball and roller bearings ,types of rolling bearing ,sliding contact bearing ,applications of roller bearings
Rolling contact bearings are called antifriction bearings because they have lower friction than sliding contact bearings. The document discusses the advantages and types of rolling contact bearings, including ball bearings and different types of roller bearings. It also covers standard dimensions, load ratings, reliability, materials used, and lubrication of ball and roller bearings.
A bearing is a device that supports load and reduces friction between moving parts. There are two main types: plain/slider bearings and rolling/anti-friction bearings. Rolling bearings use balls or rollers to create separation between surfaces and are more commonly used. Common bearing materials include metals, alloys, and some non-metals. Bearings must be properly selected, mounted, lubricated, and maintained to maximize their lifespan and prevent premature failure.
Within this brochure you will find a brief introduction to NSK Super Precision Bearings and their benefits, including a section on upgrading to allow for better performance, increased life and reliability.
NSK Super Precision Bearings allow for high speed and accurate running while maintaining extreme rigidity
This document discusses thrust bearings, which are machine components that support axial loads and constrain rotational motion. It describes how thrust bearings reduce friction in automobiles, aircrafts, manufacturing equipment, and more. The document categorizes different types of thrust bearings, including ball thrust bearings, tapered roller thrust bearings, cylindrical roller thrust bearings, spherical roller thrust bearings, and needle roller thrust bearings. It provides a high-level overview of thrust bearings and their applications before diving into specific types.
Automobile bearings are used in wheel hubs, engine components, clutches, and other parts. They come in various sizes and types to suit different applications. Bearings for high-speed railcars are made of strong, lightweight aluminum alloys to reduce weight and improve stability at high speeds. Slewing bearings can bear large axial, radial, and overturning loads and are used in applications that require rotation. Needle roller bearings are compact and rigid, making them suitable for applications where space is limited like automobiles, machines, and electronics.
Bearings are selected based on bearing life and reliability, speed, space limitations, accuracy, and load characteristics. The main types of bearings include ball bearings, roller bearings, thrust bearings, and linear bearings. Key factors in selecting the right bearing include radial load capacity, thrust load capacity, misalignment tolerance, and application-specific requirements. Proper bearing selection depends on understanding the bearing design and ratings.
This document discusses bearings and their functions. It describes how bearings support rotating shafts and reduce friction to allow for smooth rotation. There are two main types of bearings - plain/slider bearings which have a large contact area and high friction, and rolling/ball bearings which have less contact area and lower rolling friction. Ball and roller bearings are further described as having races, balls/rollers, and a cage that separates the balls to reduce friction. Common ball and roller bearing types and their applications are also outlined.
Rolling element bearings transmit loads through rolling contact and provide lower coefficients of friction than sliding contact bearings. They are composed of an inner race, outer race, rolling elements (balls or rollers), and a cage. Ball bearings are further classified as deep groove, angular contact, or filled notch types. Roller bearings use cylindrical or tapered rollers and have higher load capacity than ball bearings. Bearing life is rated based on the number of revolutions or hours it can operate before spalling or pitting failure occurs, with an L10 life rating meaning 10% of tested bearings will fail by that point.
The document discusses CG-1 hydrodynamic bearings produced by HTB corporation. The bearings can operate continuously at temperatures up to 400°F without external cooling, unlike traditional bearings that require cooling below 200°F. The CG-1 bearings use modern materials like high temperature polymers instead of babbitt metals, can improve strength and efficiency over traditional designs, and reduce costs by eliminating external cooling needs.
There are three main types of bearings: rolling element bearings, bushings, and journal bearings. Rolling element bearings have balls or rollers that reduce friction. Bushings use sliding contact between surfaces, with materials chosen to minimize wear. Journal bearings use a fluid film to separate sliding surfaces.
Bearing life is calculated theoretically based on the number of cycles for 10% of bearings to develop a specified size spall or pit due to subsurface fatigue cracks. While the calculation assumes maximum system loads, average loads are 50-80% of maximum, increasing bearing life. Proper lubrication is important to maximize actual bearing life in applications.
This document discusses bearings and lubrication. It defines bearings as any support in direct contact with a moving machine part that is designed to minimize friction. The main types of bearings are described as anti-friction bearings, which provide rolling contact, and plain bearings, which have sliding contact. Anti-friction bearings like ball and roller bearings are advantageous because they have lower starting friction than plain bearings. Plain bearings can use materials like bronze and are simpler but have higher wear. Proper lubrication is also discussed, including different lubrication systems like oil misting which has advantages like lower temperatures and positive pressure prevention of contamination.
Antifrcition bearings and lubrication.pptxssuserf66787
This document provides information about antifriction bearings and bearing lubrication. It discusses how rolling bearings use balls or rolling elements to minimize friction between bearing rings. It also describes how grease and oil are used as lubricants, with grease being preferred for applications where continuous oil supply is not possible. Grease provides lubrication, prevents corrosion and seals out dirt. The document discusses EHD lubrication principles for rolling bearings and explains how grease properties and NLGI grades are selected based on the application and operating conditions.
The document discusses wheel bearings, including their types, parts, inspection, and service procedures. It describes the symptoms of defective wheel bearings, such as noise and looseness. The summary explains how to inspect non-drive wheel bearings, including cleaning and packing them with new grease before reinstallation. Special attention is paid to properly adjusting the spindle nut during reinstallation.
The document discusses wheel bearings, including the types of antifriction bearings used in automotive applications and their components. It describes ball bearings, roller bearings, tapered roller bearings, and sealed front wheel drive bearings. It also covers bearing inspection procedures, greases used for lubrication, and seals used to prevent lubricant leakage and contamination.
The document discusses motor bearings, including their classification, selection criteria, components, lubrication, and failure reasons. It describes the main types of bearings as ball bearings, roller bearings, and sleeve bearings. The selection criteria includes factors like speed, shaft diameter, weight, and load direction. Proper lubrication and preventing contamination are emphasized as important to avoid premature bearing failure.
Here are the key steps to solve this bearing life problem:
1. Given: Load (P) = 3000 KN, Load life (Lh) = 30000 h, Speed (n) = 600 rpm, Bore diameter (d) = 40 mm
2. Convert speed to rpm: n = 600 rpm
3. Use bearing life equation:
L = 60nLh/106
L = 60 * 600 * 30000/106 = 1080 million revolutions
4. Use bearing load life capacity equation:
C = P(L10)1/3
C = 3000 * (1080)1/3 = 30779.57 N
So the bearing life is 1080 million revolutions
In this PPT you will learn about Bearings, Its Types, Classifications, Uses, How to select them according to use with proper and neat Diagrams and pictures.
The document provides an overview of bearings, including:
1) A bearing is a machine part that supports and guides moving components while preventing motion in the direction of an applied load. Bearings reduce friction through their rolling motion.
2) There are different types of bearings depending on the direction of the applied force, including radial bearings for perpendicular forces and thrust bearings for parallel forces.
3) When selecting a bearing, criteria like the operating environment, load direction, size constraints, and maintenance needs must be considered to choose the optimal bearing type.
This document discusses bearings and their functions. It describes the main types of bearings as plain or sliding bearings, and rolling or anti-friction bearings like ball and roller bearings. Ball and roller bearings have less friction than plain bearings due to their design involving balls or rollers that provide rolling motion rather than sliding contact. The document outlines different types of ball and roller bearings, how they are constructed, suitable applications, proper installation and positioning of bearings, and techniques for adjusting axial play.
Bearings are used in machines to allow rotating parts to move freely while supporting loads. There are two main types of bearings: sliding contact/frictional bearings which operate on sliding friction; and rolling contact/anti-frictional bearings which have rolling elements like balls or rollers to reduce friction. Rolling contact bearings can carry heavier loads than sliding contact bearings and have lower friction, but are more complex and expensive to manufacture. Bearings are classified based on the type of load they support, such as radial loads, axial/thrust loads, or combined loads. Common bearing types include ball bearings, roller bearings, tapered roller bearings, and needle roller bearings.
The document discusses different types of bearings. There are two main types - friction bearings and anti-friction bearings. Friction bearings have minimum direct contact between the shaft and bearing and include journal, bush, liner, tilting pad, and thrust bearings. Anti-friction bearings maximize contact between the shaft and bearing using rolling elements, and include roller bearings and ball bearings. The document provides details on the construction and applications of common varieties of these bearings like tapered roller, deep groove, and angular contact ball bearings.
This document discusses bearings, including their classification, types, materials, and load characteristics. It begins by defining bearings and their functions. It then covers classifications based on load direction and contact type. Various types of rolling contact bearings are described, including ball, roller, taper, and spherical bearings. Static and dynamic load capacities are discussed. Methods for calculating equivalent bearing loads and selecting bearings based on load and life are presented. The document provides a comprehensive overview of bearings and considerations for their selection and use.
Bearings support moving parts and reduce friction. The main types are plain bearings and anti-friction bearings. Plain bearings include bushings and journal bearings which use hydrodynamic lubrication. Anti-friction bearings use rolling contact and include ball bearings, roller bearings, and needle bearings. Each type has variations for different load types and applications. Proper lubrication, maintenance, and material selection are important for bearing performance and life.
This document discusses bearings and lubrication. It describes the main functions of bearings as supporting rotating shafts to transmit power and reduce friction. There are two main types of bearings: rolling contact bearings, which transfer load through rolling elements like balls and rollers; and journal or sleeve bearings, which transfer load through a thin film of lubricant. Key considerations in bearing selection include life, speed, load type, and accuracy requirements. Common bearing types are described like ball, roller, tapered, and thrust bearings. Proper lubrication and factors like bearing load and speed determine bearing life.
This document provides information on bearings, including their functions, classifications, types, components, and proper installation. It can be summarized as follows:
Bearings support rotating shafts and allow frictionless rotation. They are classified as plain or rolling bearings. Rolling bearings like ball and roller bearings use rolling elements to reduce friction compared to plain bearings. Proper bearing selection, installation, and maintenance are important to ensure optimal performance and lifespan.
This document provides information on selecting wheels and bearings for caster applications. It discusses various wheel and bearing types including sealed precision ball bearings, annular ball bearings, flanged ball bearings, caged roller bearings, roller bearings, precision tapered roller bearings, Delrin bearings, plastic sleeve bearings, Oilite bearings, and plain bore wheels. Key factors that affect wheel selection are the load capacity, floor conditions, usage, and other application specifics. The bearings are listed from easiest to hardest to maintain based on their rolling ease and lubrication needs.
Bearings are used to support rotating shafts and allow frictionless rotation. Plain or sliding contact bearings include journal, footstep, and thrust bearings which have direct sliding contact between the shaft and bearing material. Journal bearings support radial loads on a shaft running through the bearing. Footstep bearings support vertical shafts with axial loads. Thrust bearings support axial loads on a shaft passing through the bearing. Common bearing materials include brass, bronze, and babbitt metal which can be replaced if worn.
This document discusses bearings, their functions, classifications, and types. It can be summarized as:
Bearings support rotating shafts and allow frictionless rotation. They are classified as plain or rolling bearings. Rolling bearings like ball and roller bearings use rolling elements to reduce friction compared to plain bearings. Common types include deep groove ball bearings, tapered roller bearings, and thrust ball bearings. Proper bearing selection, assembly, mounting, and lubrication are important to ensure low friction and long life.
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) CurriculumMJDuyan
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
- Understand the goals and objectives of the Edukasyong Pantahanan at Pangkabuhayan (EPP) curriculum, recognizing its importance in fostering practical life skills and values among students. Students will also be able to identify the key components and subjects covered, such as agriculture, home economics, industrial arts, and information and communication technology.
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...PECB
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
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Website: https://pecb.com/
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Slideshare: http://www.slideshare.net/PECBCERTIFICATION
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
Main Java[All of the Base Concepts}.docxadhitya5119
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
Gender and Mental Health - Counselling and Family Therapy Applications and In...PsychoTech Services
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
Leveraging Generative AI to Drive Nonprofit InnovationTechSoup
In this webinar, participants learned how to utilize Generative AI to streamline operations and elevate member engagement. Amazon Web Service experts provided a customer specific use cases and dived into low/no-code tools that are quick and easy to deploy through Amazon Web Service (AWS.)
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Back to basic rolling bearing
1. Back to basic:Rolling Bearings
Bearing is a rolling machine element. It keeps our machine parts in motion all the time. Our machines
can not move without the use of bearings. Bearing is an essential element for our machine. Toys to
spacecraft are installed with bearings. Function of bearing is to reduce the friction between moving
parts of a machine. Reduction in the friction between machine parts smooth ens the movement and
increases the efficiency of the machine.
Machine exerts various kind of loads on machine parts while in motion. These loads may be in the
radial direction or in axial direction. Bearings absorb the radial and axial loads of the machine and
makes the machine movement easy. Depending on the kind of load exerting in the machine, type of
bearing is selected and installed.
There are many bearings that can withstand both radial and axial loads.
TYPE OF BEARINGS:
Depending on the type of rolling element bearings are classified in two main categories:
(1) Ball bearings
(2) Roller bearings
BALL BEARINGS
Ball bearing is consists of parts:
(1) Outer ring
(2) Inner ring
(3) Ball
(4) Cage or Separator
Depending on design, ball bearings are further categorized as follows:
(1) Single row deep groove ball bearing
(2) Double row deep groove ball bearing
(3) Single row angular contact ball bearing
(4) Double row angular contact ball bearing
(5)Three point/ Four point contact ball bearings
(6)Self aligning ball bearing
ROLLER BEARING
Roller bearing is consists of parts:
(1) Outer ring
(2) Inner ring
(3) Roller
(4) Cage or Separator
Depending on design, roller bearings are further categorized as follows:
(1) Single row Cylindrical roller bearing
(2) Double row Cylindrical roller baring
(3) Long roller bearing
(4) needle roller bearing
(5) Single row Tapered roller bearing
(6) Double row Taper roller bearing
(7) Spherical roller bearing
2. BEARING USES:
Ball bearings
Ball bearings are common in use. They are found in many machines from skate boards to washing
machine and PC drives. These bearings are capable to withstand both radial and axial thrust loads.
They are used in applications where load is light to medium and constant in nature.
BALL THRUST BEARING
Ball thrust bearings are used in low speed applications. They can not take much radial loads however
suitable for thrust loads. They are used in turntable and farm equipment's.
ROLLER BEARINGS
Roller bearings are used for heavy load applications like conveyor belt rollers where heavy radial loads
exists. In these bearings the rolling element is the cylindrical roller, hence there is the line contact
between outer race, inner race and roller. This line contact distributes the load over a large area, so
the roller bearings handle much greater load than ball bearing.
ROLLER THRUST BEARINGS
Roller thrust bearings can withstand very heavy thrust loads. They are used in car gear transmission,
Power transmission between gear and sprockets, Helical gear power transmission that causes heavy
thrust loads, can be supported by roller thrust bearings.
TAPERED ROLLER BEARINGS
Tapered roller bearings are designed to withstand heavy radial and thrust loads. They are capable to
withstand constant and impact loads.
ANGULAR CONTACT BALL BEARING
Angular contact ball bearings are constructed in such a way that their inner race, outer race and ball
are in contact at some angle. Standard contact angles are 15,30 and 40 degree. Preloading is done in
angular contact bearings during bearing assembly. Preloading minimizes the gap between the bearing
ball, inner race and outer race. They are used for heavy thrust loads and moderate radial loads.
SELECTION OF BEARING TYPE
Bearing are of many types and design. Bearing selection to be done in such a way, that it enable
machine or part to perform their work satisfactorily. Following factors to be considered when
selecting a bearing.
(1) Machine Type, space available for bearing installation.
(2) Bearing operating condition, continuous or intermit ant
(3) Weather condition of the area
(4) Bearing location
(5) Bearing load, direction and magnitude
(6) Bearing vibration and impact load
(7) Bearing temperature
(8) Machine shaft size
(9) Bearing inner diameter
(10)Bearing outer diameter
(11)Bearing overall dimensions
(12) Bearing rolling element, depending on load
3. (13) Bearing lubrication, oil or grease
BEARING LUBRICATION
Bearing lubrication reduces the friction between the rolling parts. The purpose of bearing lubrication
is to prevent direct metallic contact between the various parts of bearing. A thin layer of oil or grease
is formed on the contact surface to accomplish the purpose. Lubrication has other advantages:
(1) Reduce friction
(2) Reduce wear and tear
(3) Heat dissipation
(4) Prolonged bearing life
(5) Prevent rust
(6)Prevent water and dust ingression in the bearing.
Bearing lubrication are of two type
(1) Oil lubrication
(2) Grease lubrication
OIL LUBRICATION
Oil lubrication is most suitable for high speed and high temperature application. Oil lubrication can
dissipate heat generated by bearing very effectively. Spindle oil, machine oil, turbine oil and other
mineral oil are used as lubricant in normal operating condition. For temp. Above 150 degree
centigrade, synthetic oil such as silicone and flurosilicone are used.
Viscosity of oil determines the oil lubrication application. If viscosity is too low, the oil film will not be
formed and if viscosity too high, create the viscosity resistance and causes the bearing temperature
rise.
For higher speed, a low viscosity oil to be used and for heavy loads higher viscosity oil to be used
METHOD OF LUBRICATION
OIL BATH
Oil bath lubrication is used for horizontal shaft application. Oil level in the bath to be maintained at
the centre of the lowest rolling element of bearing. Housing design should be such that oil level does
not fluctuate.
OIL SPLASH
In splash oil lubrication an impeller like device to be mounted on the shaft to pick up the oil and spray
it on the bearing. This is used for high speed application. Drip lubrication is used for high speed and
light to medium load application. Constant oiler is mounted on the housing above the bearing and
allow oil to drip in the bearing.
GREASE LUBRICATION
Grease lubrication of bearing is easier than the oil lubrication. Because of viscosity grease lubrication is
long-lasting and requires simple sealing. New grease is pumped through grease nipple that replaces
the old grease from the equipment bearing. Grease are composed of mineral oil base and synthetic oil
base like silicone oil and fluorocarbon oil mixed with thickener. The base oil determines the properties
of the grease.
4. Grease with low viscosity base oil are best suited for low temperature and high speed, while grease
made from high viscosity base oil are suited for heavy load application