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.
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.
Bearing Description about basic, types, failure causesPankaj
This document discusses different types of bearings. It begins by defining a bearing as a device that allows constrained relative motion between two parts, typically rotation or linear movement. It then classifies bearings based on the motions they allow and their principle of operation. The document goes on to describe various types of bearings in detail, including ball bearings, roller bearings, thrust bearings, tapered roller bearings, and cylindrical roller bearings. It provides information on the characteristics, advantages, applications, and physical features of each bearing type.
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.
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.
Bearings are used to support rotating shafts and come in different types depending on whether they are designed to withstand axial thrusts, radial loads, or both. The main bearing types are ball bearings, which use spheres, and cylindrical roller bearings, which use cylinders, with each type having different capacities for loads and misalignment. Deep groove ball bearings can withstand both radial and axial loads, while angular contact ball bearings have increased axial load capacity and self-aligning ball bearings are very tolerant of misalignment.
The document discusses bearings, including:
- Bearings are mechanical components that allow rotation between parts and consist of rolling elements like balls or rollers.
- There are several types of bearings including ball bearings, roller bearings, thrust bearings, and tapered roller thrust bearings.
- Bearing life refers to the period a bearing can continue operating before failure from factors like noise, abrasion, fatigue, or damage. Proper selection, mounting, and maintenance can extend bearing life.
- Relative bearing refers to the angle between an object and the forward direction of a vessel, and is used for navigation.
Basic Types Of Rolling Bearings
There are four basic types of rolling bearings: deep groove ball bearings, taper roller bearings, cylindrical roller bearings, and spherical roller bearings. Each type has a distinct design and is suited for different load characteristics. Deep groove ball bearings are the most common and can handle radial and axial loads. Taper roller bearings can handle both radial and axial loads. Cylindrical roller bearings are designed primarily for radial loads. Spherical roller bearings can handle misalignment and high speeds/loads. Rolling bearings are identified using designation systems which indicate type, dimensions, and other specifications.
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.
Bearing Description about basic, types, failure causesPankaj
This document discusses different types of bearings. It begins by defining a bearing as a device that allows constrained relative motion between two parts, typically rotation or linear movement. It then classifies bearings based on the motions they allow and their principle of operation. The document goes on to describe various types of bearings in detail, including ball bearings, roller bearings, thrust bearings, tapered roller bearings, and cylindrical roller bearings. It provides information on the characteristics, advantages, applications, and physical features of each bearing type.
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.
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.
Bearings are used to support rotating shafts and come in different types depending on whether they are designed to withstand axial thrusts, radial loads, or both. The main bearing types are ball bearings, which use spheres, and cylindrical roller bearings, which use cylinders, with each type having different capacities for loads and misalignment. Deep groove ball bearings can withstand both radial and axial loads, while angular contact ball bearings have increased axial load capacity and self-aligning ball bearings are very tolerant of misalignment.
The document discusses bearings, including:
- Bearings are mechanical components that allow rotation between parts and consist of rolling elements like balls or rollers.
- There are several types of bearings including ball bearings, roller bearings, thrust bearings, and tapered roller thrust bearings.
- Bearing life refers to the period a bearing can continue operating before failure from factors like noise, abrasion, fatigue, or damage. Proper selection, mounting, and maintenance can extend bearing life.
- Relative bearing refers to the angle between an object and the forward direction of a vessel, and is used for navigation.
Basic Types Of Rolling Bearings
There are four basic types of rolling bearings: deep groove ball bearings, taper roller bearings, cylindrical roller bearings, and spherical roller bearings. Each type has a distinct design and is suited for different load characteristics. Deep groove ball bearings are the most common and can handle radial and axial loads. Taper roller bearings can handle both radial and axial loads. Cylindrical roller bearings are designed primarily for radial loads. Spherical roller bearings can handle misalignment and high speeds/loads. Rolling bearings are identified using designation systems which indicate type, dimensions, and other specifications.
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.
Bearings support rotating shafts and allow them to rotate with minimal friction. There are two main types: plain/slider bearings where the shaft slides against the bearing, and rolling element bearings like ball or roller bearings where balls or rollers allow the shaft and bearing to roll against each other with lower friction. Rolling element bearings have lower starting torque needs and friction compared to plain bearings. Journal, footstep, and thrust bearings are types of plain bearings that support axial or radial loads on vertical or horizontal shafts. Proper lubrication is important for all bearing types to reduce friction.
The document discusses bearings and lubrication principles. It describes different types of bearings including plain, rolling element, journal, guide, thrust bearings. It also discusses antifriction bearings like ball bearings, roller bearings, needle roller bearings. The document covers lubrication theory, lubricant properties, types of lubricants like oils and greases. It describes lubrication monitoring techniques like oil analysis and wear debris analysis which can help detect early stage equipment failures.
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.
Shaft alignment is the process of positioning two or more rotating shafts so their centerlines are aligned when machines are operating normally. Misalignment can cause damage like abnormal bearing wear. There are several methods to check alignment including using a piano wire or line-of-sight with a telescope. For a piano wire method, the wire is tensioned and distances from it to bearings are measured. For a telescopic method, targets are mounted on stationary points and the telescope is used to align the rotating components by sighting through the targets. Proper shaft alignment is important for reducing vibrations and extending component 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.
Definition, Use, Types of beariings, Types of Journal bearing, Materials for journal bearing, Failures of journal bearing, Design terms for journal bearing, Types of roller contact bearing, applications of roller contact bearing, Designation of roller contact bearing, Design terms for roller contact bearing, comparison between journal and roller bearings, characteristics of bearings, selection procedure of bearings
,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
The document discusses different types of axles used in vehicles. It describes front axles which support the front of the vehicle and facilitate steering. Front axles can be dead axles, which do not rotate, or live axles which transmit power to the front wheels. Rear axles support the weight of the vehicle and transmit driving thrust. The document outlines full-floating, semi-floating, and three-quarter floating rear axles and how they differ in how they carry weight and transmit torque. It also discusses stub axles which connect to the front axle and allow the front wheels to turn for steering.
Basic Bearing Technology document provides an overview of bearing fundamentals:
- Friction occurs between two contact surfaces and generates heat, excessive torque, wear and tear. There are two types of friction - sliding and rolling.
- A rolling bearing uses rolling elements like balls or rollers to reduce friction and support loads. It has lower friction than plain bearings.
- Bearing components include an inner ring, outer ring, rolling elements, and a cage. The cage holds the rolling elements and provides space for lubrication.
- Bearings can experience radial, axial or combined loads. Internal clearance is maintained to account for fits, tolerances and thermal expansion. The load zone is the area where load
This document provides information on machinery alignment including definitions, types of misalignment, symptoms, causes, methods, and tools. It defines alignment as positioning rotating shafts so their centerlines match under operating conditions. The two main types of misalignment are radial, where shafts are parallel but offset, and axial, where one shaft is angled relative to the other. Methods discussed include rough alignment using straight edges or wires, and precision alignment using rim and face, reverse/graphical, or laser techniques. Tolerances, symptoms like vibration, and effects like increased wear are also covered.
This document provides information on bearings, including their history, classification, materials used, lubrication types, and design procedures. It discusses how bearings are designed to reduce friction, carry loads, and guide moving parts. The key types are described as radial or thrust bearings, and sliding or rolling contact bearings. Common materials include babbitt metals, bronzes, cast iron, silver, and non-metallic options. Design of journal bearings involves calculating parameters like load capacity, pressure, clearance, heat generation and dissipation. An example at the end illustrates the full design process.
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.
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.
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.
This document discusses different types of tires. There are two main types - tubed tires which have an inner tube, and tubeless tires which do not have an inner tube. Tubeless tires have advantages like lesser weight, better cooling, lower rolling resistance, and more comfortable ride.
The document also describes different tire constructions - cross-ply/bias ply tires which have fabric plies laid across each other at alternating angles, radial ply tires which have fabric arcs from bead to bead at 90 degree angles, and belted bias ply tires which have belt plies reinforced with wire. Radial ply tires provide benefits like better shock absorption and fuel efficiency compared to cross-ply tires.
1. The document is a presentation on antifriction bearings presented by students at Government Polytechnic Hosadurga.
2. It discusses the basic components and functions of antifriction bearings including reducing friction, carrying loads, and guiding parts.
3. Specific bearing types are examined like journal ball bearings, cylindrical bearings, needle bearings, footstep bearings, and their components and uses are described.
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
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.
Bearings support rotating shafts and allow them to rotate with minimal friction. There are two main types: plain/slider bearings where the shaft slides against the bearing, and rolling element bearings like ball or roller bearings where balls or rollers allow the shaft and bearing to roll against each other with lower friction. Rolling element bearings have lower starting torque needs and friction compared to plain bearings. Journal, footstep, and thrust bearings are types of plain bearings that support axial or radial loads on vertical or horizontal shafts. Proper lubrication is important for all bearing types to reduce friction.
The document discusses bearings and lubrication principles. It describes different types of bearings including plain, rolling element, journal, guide, thrust bearings. It also discusses antifriction bearings like ball bearings, roller bearings, needle roller bearings. The document covers lubrication theory, lubricant properties, types of lubricants like oils and greases. It describes lubrication monitoring techniques like oil analysis and wear debris analysis which can help detect early stage equipment failures.
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.
Shaft alignment is the process of positioning two or more rotating shafts so their centerlines are aligned when machines are operating normally. Misalignment can cause damage like abnormal bearing wear. There are several methods to check alignment including using a piano wire or line-of-sight with a telescope. For a piano wire method, the wire is tensioned and distances from it to bearings are measured. For a telescopic method, targets are mounted on stationary points and the telescope is used to align the rotating components by sighting through the targets. Proper shaft alignment is important for reducing vibrations and extending component 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.
Definition, Use, Types of beariings, Types of Journal bearing, Materials for journal bearing, Failures of journal bearing, Design terms for journal bearing, Types of roller contact bearing, applications of roller contact bearing, Designation of roller contact bearing, Design terms for roller contact bearing, comparison between journal and roller bearings, characteristics of bearings, selection procedure of bearings
,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
The document discusses different types of axles used in vehicles. It describes front axles which support the front of the vehicle and facilitate steering. Front axles can be dead axles, which do not rotate, or live axles which transmit power to the front wheels. Rear axles support the weight of the vehicle and transmit driving thrust. The document outlines full-floating, semi-floating, and three-quarter floating rear axles and how they differ in how they carry weight and transmit torque. It also discusses stub axles which connect to the front axle and allow the front wheels to turn for steering.
Basic Bearing Technology document provides an overview of bearing fundamentals:
- Friction occurs between two contact surfaces and generates heat, excessive torque, wear and tear. There are two types of friction - sliding and rolling.
- A rolling bearing uses rolling elements like balls or rollers to reduce friction and support loads. It has lower friction than plain bearings.
- Bearing components include an inner ring, outer ring, rolling elements, and a cage. The cage holds the rolling elements and provides space for lubrication.
- Bearings can experience radial, axial or combined loads. Internal clearance is maintained to account for fits, tolerances and thermal expansion. The load zone is the area where load
This document provides information on machinery alignment including definitions, types of misalignment, symptoms, causes, methods, and tools. It defines alignment as positioning rotating shafts so their centerlines match under operating conditions. The two main types of misalignment are radial, where shafts are parallel but offset, and axial, where one shaft is angled relative to the other. Methods discussed include rough alignment using straight edges or wires, and precision alignment using rim and face, reverse/graphical, or laser techniques. Tolerances, symptoms like vibration, and effects like increased wear are also covered.
This document provides information on bearings, including their history, classification, materials used, lubrication types, and design procedures. It discusses how bearings are designed to reduce friction, carry loads, and guide moving parts. The key types are described as radial or thrust bearings, and sliding or rolling contact bearings. Common materials include babbitt metals, bronzes, cast iron, silver, and non-metallic options. Design of journal bearings involves calculating parameters like load capacity, pressure, clearance, heat generation and dissipation. An example at the end illustrates the full design process.
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.
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.
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.
This document discusses different types of tires. There are two main types - tubed tires which have an inner tube, and tubeless tires which do not have an inner tube. Tubeless tires have advantages like lesser weight, better cooling, lower rolling resistance, and more comfortable ride.
The document also describes different tire constructions - cross-ply/bias ply tires which have fabric plies laid across each other at alternating angles, radial ply tires which have fabric arcs from bead to bead at 90 degree angles, and belted bias ply tires which have belt plies reinforced with wire. Radial ply tires provide benefits like better shock absorption and fuel efficiency compared to cross-ply tires.
1. The document is a presentation on antifriction bearings presented by students at Government Polytechnic Hosadurga.
2. It discusses the basic components and functions of antifriction bearings including reducing friction, carrying loads, and guiding parts.
3. Specific bearing types are examined like journal ball bearings, cylindrical bearings, needle bearings, footstep bearings, and their components and uses are described.
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
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.
1. Bearings are components that allow parts in a machine to move smoothly against each other. There are two main types: sliding bearings which use lubrication between sliding surfaces, and rolling element bearings which use balls or rollers to minimize friction.
2. Thrust bearings are a type of rolling element bearing designed to support high axial loads on a shaft. Common varieties include ball, roller, and tapered roller thrust bearings.
3. Bushings are plain bearings that can be inserted into a housing to provide a bearing surface, and come in solid, split, or clenched designs to accommodate rotation.
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 work by reducing friction between moving parts and supporting loads. There are two main types:
1. Rolling element bearings (balls or rollers) that have lower starting friction and can carry higher loads than sliding bearings. Common types include ball, tapered roller, cylindrical roller, and spherical roller bearings.
2. Sliding element bearings have higher friction but can accommodate misalignment. Loads can be radial, axial, or combined. Selection depends on factors like space, load characteristics, and lubrication needs.
Bearings have inner and outer rings that contain the rolling elements or sliding surfaces. Proper mounting, lubrication, and maintenance are required to prevent premature failure and ensure long life
This document discusses the design and classification of bearings. It begins by defining a bearing as a machine element that supports another moving element, allowing relative motion while carrying a load. Bearings are classified based on the direction of load (radial or thrust) and the type of contact (sliding or rolling). Sliding contact bearings are further classified based on the thickness of the lubricating film between surfaces. Common types of sliding contact bearings include journal, footstep, and thrust bearings. Properties of bearing materials and types of lubricants are also outlined.
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.
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.
Rolling bearings generally consist of two rings, rolling elements, and a cage. They are classified as radial or thrust bearings based on load direction, and as ball or roller bearings based on element type. Common bearing types include deep groove ball bearings, tapered roller bearings, and angular contact ball bearings. Rolling bearings have advantages over plain bearings like lower friction, interchangeability, easy maintenance, and the ability to handle combined loads.
This document provides information about bearings:
Bearings allow one machine part to support another and reduce friction between moving parts. The main purpose of bearings is to prevent direct contact between elements in relative motion and reduce friction, heat, and wear.
There are two main types of bearings: sliding surface or 'plain' bearings, and rolling element or 'anti-friction' bearings. Plain bearings use a sliding surface while rolling element bearings use balls, rollers, or needles to reduce friction. The document then describes various designs within each category.
Power Transmission Devices: Construction, working, comparison, applications and classification of: Belt Drive (Flat and V Belt), Chain Drive and Spur Gear Drive arranged with simple gear trains
Bearings are components that reduce friction in machines by allowing surfaces to roll rather than slide against each other. The document discusses the main types of bearings - ball, roller, ball thrust, roller thrust, and tapered roller - and their uses. Ball bearings are the most common and support radial loads, while roller bearings can handle greater loads. Tapered roller bearings support both radial and thrust loads and are often used in automotive applications like wheel hubs. Bearings are crucial components in many mechanical devices.
Rolling contact bearings and design procedureJashavant singh
this slide will give you idea about the rolling contact bearing , its types application areas and also you will learn how to design rolling contact bearing ,
comparison between the rolling contact and sliding contact bearing , advantage and disadvantages.
This document discusses anti-friction bearings used in machine tool design. It defines bearings and their purpose of allowing relative motion with minimal friction. It describes the broad classifications and types of ball and roller bearings, including deep groove ball bearings, self-aligning bearings, thrust ball bearings, angular contact ball bearings, cylindrical roller bearings, needle roller bearings, and tapered roller bearings. It discusses bearing requirements, types, dimensions, load capacities, lives, calculations, mounting, lubrication, and failure causes. It also covers spindle bearing arrangements and rigidity calculations.
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELgerogepatton
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...University of Maribor
Slides from talk presenting:
Aleš Zamuda: Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapter and Networking.
Presentation at IcETRAN 2024 session:
"Inter-Society Networking Panel GRSS/MTT-S/CIS
Panel Session: Promoting Connection and Cooperation"
IEEE Slovenia GRSS
IEEE Serbia and Montenegro MTT-S
IEEE Slovenia CIS
11TH INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONIC AND COMPUTING ENGINEERING
3-6 June 2024, Niš, Serbia
A review on techniques and modelling methodologies used for checking electrom...nooriasukmaningtyas
The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
3. BEARING IS A MACHINE PART WHICH IS USEDTO BEAR
THE LOAD AND ALSO REDUCETHE FRICTION.
Bear the
Load.
1 2 3 4
There are four Main purpose of Bearing.
Reduce the
Friction.
Rotate shaft
Easily.
Control Axial and
Radial Movement.
4. THERE ARE MAIN TWO TYPES:
1- Friction Bearing/Plain Bearing
2- Anti-Friction Bearing
5. PLAIN BEARING/FRICTION BEARING:
1. Journal Bearing
a) Half-Sleeve Journal Bearing
b) Full-Sleeve Journal Bearing
2. Bush Type Bearing
3. Liner Type Bearing
4. Tilting Pad type Bearing
5. Thrust Bearing
a) Tilting Pad type thrust Bearing
b) Collar Type Bearing
c) Guide Bearing
In these types of bearing, Minimum direct contact between shaft and
bearing.
There are Following types of friction bearing:
6. 1. JOURNAL
BEARING
• Journal or plain bearings consist of a shaft or
journal which rotates freely in a supporting metal
sleeve or shell. There are no rolling elements in
these bearings.
• Journal bearings operate in the metal-to-metal
contact only during the startup and shutdown of
the equipment when the rotational speed of the
shaft (journal) is insufficient to create an oil film. It
is during startup and shutdown when almost all of
the damage to the bearing occurs.
• Typically, minimum oil film thicknesses in the load
zone during operation ranges from 1.0 to 300
microns, but values of 5 to 75 microns are more
common in midsized industrial equipment. The
film thickness will be greater in equipment which
has a larger diameter shaft.
9. 5. THRUST BEARING
(TILTING PAD TYPE)
• Thrust Bearing is used to control the Axial and Radial
Movement.
• Tilting pad thrust bearings are designed to transfer high
axial loads from rotating shafts with minimum power loss,
while simplifying installation and maintenance.
• The shaft diameters for which the bearings are designed
range from 20 mm to more than 1,000 mm.
• The maximum loads for the various bearing types range
from 0.5 to 500 tons.
• Preferred oil supply pressure for directed lubrication is 1.4
bar (20.3 PSI).
• No seal rings are required on the shaft.
10. 5. THRUST BEARING
(COLLAR TYPE)
• A Collar Bearing is a type of Thrust Bearing. In thrust
bearings, the load acts along the axis of the shaft as in
Turbine shafts.
• The collar bearings usually have a single or a multiple
number of collars depending upon the application.
• The collars present in the bearing tends to arrest the
movement of the shaft in the axial direction.
The above pic shows a Collar
Bearing with 4 collars.
11. 5. THRUST BEARING
(GUIDE TYPE)
• A guide bearing is a roller, plate or block that reduces wear, maintains alignment
and minimizes friction of moving parts. Guide bearings are commonly found on
saws, machining tools and other equipment where alignment of moving parts is
needed. Smaller bearings may use low-drag polymers or plastics, and larger loads
may require the use of metal rollers and lubricants.
• Larger equipment can use linear bearings, but these may be rollers surrounding
the guide shaft. A roller guide bearing can be shaped as a cylinder, with a ring of
guide rollers. Placement of these bearings at each end of a moving shaft can
provide minimal friction while permitting proper linear motion.
12. ANTI-FRICTION BEARING:
1. Line-Contact/Roller Bearing
a) Taper Roller Bearing
b) Spherical Roller Bearing
c) Cylindrical Roller Bearing
d) Thrust Roller Bearing
1. Point-Contact/Ball Bearing
a) Deep Groove Ball Bearing
b) Angular Contact Ball Bearing
c) Double Row/Self aligned Ball
Bearing
d) Thrust Ball Bearing
In these types of bearing, Maximum contact between shaft and
bearing. And Reduce friction by using Rolling Element.
There are Following types of friction bearing:
13. 1. LINE CONTACT/ROLLER BEARING
• Roller Bearings are a type of Anti-Friction bearing that uses cylinders (rollers) to
maintain the separation between the moving parts of the bearing.
• The purpose of a roller bearing is to reduce rotational friction and support radial and
axial loads.
• Compared to ball bearings, roller bearings can support heavy radial loads and limited
axial loads (parallel to the shaft).
• They can operate at moderate to high speeds (although maximum speeds are
typically below the highest speeds of ball bearings).
• The lubrication method must carefully considered during the design phase when
using roller bearings
14. TYPES OF ROLLER BEARING
A. Taper Roller Bearing
B. Spherical Roller Bearing
C. Cylinder Roller Bearing
D. Thrust Roller Bearing
15. A. TAPER ROLLER BEARING
• Tapered roller bearings consist of four basic components including: the cone (inner
ring), the cup (outer ring), tapered rollers, and a cage (roller retainer).
• The cone, cup and rollers carry the load while the cage spaces and retains the rollers
on the cone.
• In addition, Tapered roller bearings may be a single-row, double-row and four-row.
• Tapered roller bearings are used for heavy-duty, moderate speed applications. Typical
applications that will benefit from these durable bearings include:
• Agriculture, Construction and Mining Equipment
• Various Axle Systems
• Conveyance Vehicles
• Gear Box, Engine Motors, Reducers
16. TAPERED ROLLER BEARING MATERIAL
• While other materials may be available, typically,
tapered roller bearings are made of high carbon
chrome steel due to their expected performance.
17. B. SPHERICAL ROLLER BEARING
• Spherical Roller Bearings are designed to work in
applications where severe misalignment exists whether from
mounting or shaft deflection and with relatively heavy radial
loads and some axial loads in either direction.
• They are also extremely resistant to shock loads.
• Spherical Roller Bearings are designed to be more robust by
carry heavier loads but at lower maximum speeds.
• These bearings have barrel-shaped rollers between the inner
ring, which has two raceways, and the outer ring which has
one spherical raceway.
18. C. CYLINDER ROLLER THRUST BEARING
• They are designed to support a high axial load
while doing this (parallel to the shaft). Higher
speed applications require oil lubrication.
• Generally, they are composed of two washers
(raceways) and the cylindrical roller elements
which are typically caged. As opposed to
roller thrust bearings, ball thrust bearings can
generally operate at higher speeds but at
lower loads.
19. 2. POINT-CONTACT/BALL BEARING
• Ball Bearings are a type of Point-contact bearing that uses balls to maintain the
separation between the moving parts of the bearing.
• The purpose of a ball bearing is to reduce rotational friction and support radial
and axial loads.
• Radial Ball bearings can support moderate radial loads and moderate axial loads
(parallel to the shaft).
• They can operate at high speeds (400,000 RPMs and higher).
20. TYPES OF POINT CONTACT/BALL BEARING
1. Deep groove ball bearing
2. Angular contact ball bearing
3. Double Row/Self aligned ball bearing
4. Thrust ball bearing
21. 1. DEEP GROOVE BALL BEARING
• Single row deep groove ball bearings are the most widely
used roller bearing type in the world due to their
versatility and overall performance.
• Their straight forward basic design has many advantages:
• Excellent for high Load and Low RPM.
• Good radial load capacity
• Acceptable axial load capacity in both directions
• Have low torque capacity at startup and running
speeds
• Can operate with low noise.
• Heavy Duties.
22. CONSTRUCTION:
• They are characterized by having
deep raceway grooves in which the
inner and outer rings have circular
arcs of slightly larger radius than
that of the balls.
• These bearings often have steel
shields or rubber seals installed on
one or both sides and are pre-
lubricated with grease. Also, snap
rings are sometimes used on the
outside edge. While many different
retainers are available, pressed steel
cages are most commonly used.
Main Parts:
• Inner Race
• Outer Race
• Cage
• Balls
• Steel shields/Rubber Seal
23. 2. ANGULAR CONTACT BALL BEARING:
• Due to their internal design, angular contact ball
bearings can withstand high radial-axial loads and
reach high speeds.
• Typically, the inner and outer raceways and balls
are made of chrome steel. Where operating
conditions are severe, bearings may have ceramic
balls.
• They may be single or multi-rows.
24. 3. DOUBLE ROW/SELF ALIGNED BALL BEARING:
• Self-Aligning Double Row Ball Bearings are designed to work
in applications where severe misalignment exists whether from
mounting or shaft deflection.
• The concave raceway of the outer ring in combination with
two rows of balls operate over a wide range of contact angles.
• It aligns itself correctly with the shaft and assembly without
causing undue stress on the rest of the bearing assembly.
• Standard Self-Aligning Double Row Ball Bearings are produced
with straight bores; however, tapered bores are available upon
request.
• Self-aligning ball bearing has the lowest friction of all rolling
bearings, which enables it to run cooler even at high
speeds. Furthermore, the design allows for easy mounting and
dismounting.
25. 4. THRUST BALL BEARING
• Composed of ball bearings supported in a ring, can be
used in lower thrust applications where there is little radial
load.
• Raceways may be flat or grooved.
• Thrust ball bearings starting with bores as small as 2 mm
but as large as 340 mm.
• Thrust bearings are used in higher speed applications that
require oil lubrication, such as in the automotive and
aerospace industries.
• Generally, thrust bearings are composed of two raceways in
which those for ball bearings may be grooved, and the
rolling elements.
26. BEARING NUMBER EXPLAINED:
(1) Prefix (2) Basic Number (3) Suffix
(1) Prefix:
K Cage with roller elements
L Removable bearing ring
R Ring with roller set
S Roll body of stainless steel
W Stainless steel deep groove ball bearing
27. (2) Basic Number:
The example at the header shows
a 6001 2RS bearing. So what does
the 6001 actually mean?
Lets attempt to break it down.
(6)001
This first number relates to the
bearing type, as shown in the
table below type 6 is a deep
grooved roller bearing.
1 Self-Aligning Ball Bearing
2 Spherical Roller Bearing
3 Tapered Roller Bearing
4 Deep Groove Double Row Ball Bearing
5 Thrust Ball Bearing
6 Deep Groove Ball Bearing
7 Angular Contact Bearing
8 Cylindrical Thrust Bearing
28. 6(0)01
This second number relates the bearing series,
which reflects the robustness of the bearing.
As you go up the scale below from 9 to 4 the
inner and outer race thickness will usually
increase along with the ball size, this will be to
help cope with extra load.
9 Very thin section
0 Extra light
1 Extra light thrust
2 Light
3 Medium
4 Heavy
60(01)
The 3rd and 4th digits of the bearing number
relate to the bore size of the bearing, numbers
00 to 03 have a designated bore size
depending on the number.
00 10mm
01 12mm
02 15mm
03 17mm
• While numbers over 03 simply have a bore
size which is 5 times that of the 3rd and 4th
digit.
29. (3) SUFFIX:
2 RS
Bearing with rubber seal on both sides. RS provides a better seal but more
rolling friction than 2Z.
RS Bearing with rubber seal on one side, one side open.
2 Z / ZZ Bearing with a metal seal on both sides.
Z Bearing with a metal seal on one side, one side open.
E Reinforced Design
P2 Highest precision
K Bearing with taper bore