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TIMKEN® SPHERICAL ROLLER BEARING CATALOG
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TIMKEN® SPHERICAL ROLLER BEARING CATALOG
Product catalog summary
Overview
Timken is a global leader in the design and manufacture of bearings and power transmission products, focusing on improving machinery reliability and performance across various industries. The company offers a wide range of products such as bearings, gear drives, and lubrication systems, supported by a global team of experts.
Timken is a global leader in the design and manufacture of bearings and power transmission products, focusing on improving machinery reliability and performance across various industries. The company offers a wide range of products such as bearings, gear drives, and lubrication systems, supported by a global team of experts.
Introduction
The catalog introduces Timken's spherical roller bearings, highlighting their ability to handle heavier loads and faster speeds. These bearings are designed to enhance equipment uptime and performance, offering solutions that withstand harsh environments and reduce maintenance costs.
The catalog introduces Timken's spherical roller bearings, highlighting their ability to handle heavier loads and faster speeds. These bearings are designed to enhance equipment uptime and performance, offering solutions that withstand harsh environments and reduce maintenance costs.
Engineering Specifications
The catalog details various engineering aspects, including bearing types, metric system tolerances, and installation procedures. It emphasizes the importance of proper mounting, fitting, and lubrication to ensure optimal performance and longevity of the bearings.
The catalog details various engineering aspects, including bearing types, metric system tolerances, and installation procedures. It emphasizes the importance of proper mounting, fitting, and lubrication to ensure optimal performance and longevity of the bearings.
Spherical Roller Bearings
Timken's spherical roller bearings are engineered for increased performance and uptime, featuring advanced design elements such as optimized internal geometries and surface finishes. These bearings run cooler and faster, offering longer life and lower operating costs compared to competitors.
Timken's spherical roller bearings are engineered for increased performance and uptime, featuring advanced design elements such as optimized internal geometries and surface finishes. These bearings run cooler and faster, offering longer life and lower operating costs compared to competitors.
Plummer Blocks and Pillow Blocks
The catalog provides detailed information on SNT and SAF spherical roller bearing plummer blocks and pillow blocks, including design, construction, mounting, and lubrication. It also covers load ratings and life expectancy, ensuring users select the right housing for their applications.
The catalog provides detailed information on SNT and SAF spherical roller bearing plummer blocks and pillow blocks, including design, construction, mounting, and lubrication. It also covers load ratings and life expectancy, ensuring users select the right housing for their applications.
Accessories
Timken offers a comprehensive range of metric and inch accessories, including adapter sleeves, hydraulic nuts, locknuts, and lockwashers. These accessories are designed to complement the bearings and enhance their performance in various applications.
Timken offers a comprehensive range of metric and inch accessories, including adapter sleeves, hydraulic nuts, locknuts, and lockwashers. These accessories are designed to complement the bearings and enhance their performance in various applications.
Innovation and Customer Support
Timken is committed to innovation and customer support, operating technology centers worldwide to develop new products and solutions. The company provides extensive technical support and services to help customers optimize their operations and reduce costs.
Timken is committed to innovation and customer support, operating technology centers worldwide to develop new products and solutions. The company provides extensive technical support and services to help customers optimize their operations and reduce costs.
Product and Service Offerings
Timken provides an extensive portfolio of friction-management products and services, ensuring high-quality standards across all manufacturing plants. Their bearings, made from high-performance steel, are designed for various applications and industries.
Timken provides an extensive portfolio of friction-management products and services, ensuring high-quality standards across all manufacturing plants. Their bearings, made from high-performance steel, are designed for various applications and industries.
Tapered Roller Bearings
These bearings are suitable for harsh conditions, offering thousands of configurations to manage radial and thrust loads. They are known for increased power density, long life, and low cost of ownership.
These bearings are suitable for harsh conditions, offering thousands of configurations to manage radial and thrust loads. They are known for increased power density, long life, and low cost of ownership.
Cylindrical Roller Bearings
Timken's cylindrical roller bearings minimize drag and heat, extending equipment life and reducing maintenance costs. The EMA series features premium brass cages, and the ADAPT line combines cylindrical and spherical designs for high-capacity configurations.
Timken's cylindrical roller bearings minimize drag and heat, extending equipment life and reducing maintenance costs. The EMA series features premium brass cages, and the ADAPT line combines cylindrical and spherical designs for high-capacity configurations.
Thrust Bearings
Timken offers a range of thrust bearings for various applications, including cylindrical, spherical, tapered, and ball thrust types, each designed for specific load and speed conditions.
Timken offers a range of thrust bearings for various applications, including cylindrical, spherical, tapered, and ball thrust types, each designed for specific load and speed conditions.
Ball Bearings
Engineered for a wide range of applications, Timken ball bearings support high-speed operations under various load conditions.
Engineered for a wide range of applications, Timken ball bearings support high-speed operations under various load conditions.
Housed Units
Timken's housed units protect bearings in harsh environments, offering customizable designs and multiple sealing options for enhanced durability and performance.
Timken's housed units protect bearings in harsh environments, offering customizable designs and multiple sealing options for enhanced durability and performance.
Lubricants and Lubrication Systems
Timken provides a variety of lubricants and lubrication systems to maximize performance and uptime, including high-temperature and water-resistant additives.
Timken provides a variety of lubricants and lubrication systems to maximize performance and uptime, including high-temperature and water-resistant additives.
High-Performance Bearing Solutions
Timken offers specialized bearings for corrosion protection and debris resistance, with customized solutions for specific application requirements.
Timken offers specialized bearings for corrosion protection and debris resistance, with customized solutions for specific application requirements.
Power Transmission Components
Timken's range includes seals, couplings, and engineered chains designed to withstand extreme conditions and protect machinery.
Timken's range includes seals, couplings, and engineered chains designed to withstand extreme conditions and protect machinery.
Maintenance Tools and Services
Timken provides tools for proper bearing installation and maintenance, as well as remanufacturing and repair services to extend component life and reduce costs.
Timken provides tools for proper bearing installation and maintenance, as well as remanufacturing and repair services to extend component life and reduce costs.
Training
Timken offers industry-specific training programs to enhance bearing performance knowledge, available globally with hands-on training and facility tours.
Timken offers industry-specific training programs to enhance bearing performance knowledge, available globally with hands-on training and facility tours.
Catalog Usage and Shelf Life
The catalog helps users find suitable Timken bearings, with guidelines for shelf life and storage to ensure product longevity. Timken emphasizes the importance of adhering to storage guidelines to maintain product quality.
The catalog helps users find suitable Timken bearings, with guidelines for shelf life and storage to ensure product longevity. Timken emphasizes the importance of adhering to storage guidelines to maintain product quality.
Storage and Handling Guidelines
Products should be placed into service promptly after removal from packaging. Bulk containers should be resealed immediately after product removal. Products exceeding their shelf life should not be used, and storage conditions should maintain temperatures between 0º C and 40º C with humidity below 60%. The area should be free from contaminants and vibrations.
Products should be placed into service promptly after removal from packaging. Bulk containers should be resealed immediately after product removal. Products exceeding their shelf life should not be used, and storage conditions should maintain temperatures between 0º C and 40º C with humidity below 60%. The area should be free from contaminants and vibrations.
Compliance and Standards
Timken products comply with various international standards such as REACH, RoHS, and ATEX. For compliance queries, contact a Timken sales engineer.
Timken products comply with various international standards such as REACH, RoHS, and ATEX. For compliance queries, contact a Timken sales engineer.
Engineering Section Overview
This section covers spherical roller bearing design types, cage designs, fitting practices, and lubrication recommendations. It serves as a guide for bearing selection.
This section covers spherical roller bearing design types, cage designs, fitting practices, and lubrication recommendations. It serves as a guide for bearing selection.
Specifications and Measurements
The document provides detailed specifications for Timken spherical roller bearings, including measurements in both millimeters and inches. It outlines the minimum and maximum values for various parameters such as C2, C3, C5, and taper ratios (1:12 and 1:30). These specifications are crucial for ensuring proper fit and function of the bearings in different applications.
The document provides detailed specifications for Timken spherical roller bearings, including measurements in both millimeters and inches. It outlines the minimum and maximum values for various parameters such as C2, C3, C5, and taper ratios (1:12 and 1:30). These specifications are crucial for ensuring proper fit and function of the bearings in different applications.
Mounting and Installation Procedures
The document outlines a step-by-step procedure for mounting, fitting, setting, and installing spherical roller bearings. Key steps include positioning the bearing, measuring the unmounted radial internal clearance (RIC), confirming the RIC value against specifications, and determining axial displacement for RIC reduction.
The document outlines a step-by-step procedure for mounting, fitting, setting, and installing spherical roller bearings. Key steps include positioning the bearing, measuring the unmounted radial internal clearance (RIC), confirming the RIC value against specifications, and determining axial displacement for RIC reduction.
Fitting Practice Review
The document includes guidelines for reviewing fitting practices, such as gathering information on bearing bore and OD dimensions/tolerances, calculating the load to bearing rating ratio, and determining shaft and housing fits using specified tables.
The document includes guidelines for reviewing fitting practices, such as gathering information on bearing bore and OD dimensions/tolerances, calculating the load to bearing rating ratio, and determining shaft and housing fits using specified tables.
Installation of Cylindrical Bore Bearings
The document describes the heat expansion method for installing cylindrical bore bearings, emphasizing the need for a tight interference fit on the shaft.
The document describes the heat expansion method for installing cylindrical bore bearings, emphasizing the need for a tight interference fit on the shaft.
Specifications and Procedures
1. Heating Bearings: Bearings should be heated for 20-30 minutes until they expand enough to slide onto the shaft easily. Induction heating is recommended but must not exceed 93°C (200°F).
2. Mounting Bearings: Use trial runs to determine proper timing. Thermal crayons can check temperature. Position the bearing squarely against the shoulder while hot, then secure with lockwashers and locknuts.
3. Outer Ring Rotation: If the outer ring is a tight fit, the housing can be expanded by heating.
4. Oil Bath Method: Bearings should not contact the heat source directly. Use a screen and support blocks to prevent excessive heat exposure.
5. Safety Measures: Use a mixture of 15% soluble-oil water if open heated oil baths are not allowed.
1. Heating Bearings: Bearings should be heated for 20-30 minutes until they expand enough to slide onto the shaft easily. Induction heating is recommended but must not exceed 93°C (200°F).
2. Mounting Bearings: Use trial runs to determine proper timing. Thermal crayons can check temperature. Position the bearing squarely against the shoulder while hot, then secure with lockwashers and locknuts.
3. Outer Ring Rotation: If the outer ring is a tight fit, the housing can be expanded by heating.
4. Oil Bath Method: Bearings should not contact the heat source directly. Use a screen and support blocks to prevent excessive heat exposure.
5. Safety Measures: Use a mixture of 15% soluble-oil water if open heated oil baths are not allowed.
Installation
1. Cleanliness: Ensure a clean environment free from dust and moisture. Use protective screens and clean cloths.
2. Planning: Prepare tools and plans in advance to minimize job time and contamination risk.
3. Inspection and Preparation: Clean all components and check against specifications for accuracy. Ensure shaft shoulders and spacer rings are square with the shaft axis.
4. Shaft and Housing Finish: Surfaces must be clean and free from nicks. Ground finish is preferred, but machined finish is acceptable with increased interference fit.
1. Cleanliness: Ensure a clean environment free from dust and moisture. Use protective screens and clean cloths.
2. Planning: Prepare tools and plans in advance to minimize job time and contamination risk.
3. Inspection and Preparation: Clean all components and check against specifications for accuracy. Ensure shaft shoulders and spacer rings are square with the shaft axis.
4. Shaft and Housing Finish: Surfaces must be clean and free from nicks. Ground finish is preferred, but machined finish is acceptable with increased interference fit.
Mounting Methods
1. Arbor Press Method: Suitable for smaller bearings. Use a soft steel tube slightly larger than the shaft for pressing.
2. Tapered Bore Bearings: Use a feeler gauge to measure RIC before installation. Lubricate the shaft and slide the bearing on, tightening the locknut to achieve the correct interference fit.
1. Arbor Press Method: Suitable for smaller bearings. Use a soft steel tube slightly larger than the shaft for pressing.
2. Tapered Bore Bearings: Use a feeler gauge to measure RIC before installation. Lubricate the shaft and slide the bearing on, tightening the locknut to achieve the correct interference fit.
Notes and Recommendations
- Never apply pressure to the outer ring for a press fit on a shaft.
- Avoid using steam or hot water for cleaning bearings to prevent rust.
- Do not heat bearings beyond 149°C (300°F).
- Never apply pressure to the outer ring for a press fit on a shaft.
- Avoid using steam or hot water for cleaning bearings to prevent rust.
- Do not heat bearings beyond 149°C (300°F).
Tables and Charts
1. Shaft and Housing Fits: Guidelines for specifying fits based on operating conditions. Includes tolerance symbols and examples for various load conditions.
2. Spherical Roller Bearing Shaft Tolerances: Provides tolerance ranges and fit specifications for different shaft diameters.
1. Shaft and Housing Fits: Guidelines for specifying fits based on operating conditions. Includes tolerance symbols and examples for various load conditions.
2. Spherical Roller Bearing Shaft Tolerances: Provides tolerance ranges and fit specifications for different shaft diameters.
Heat Generation and Dissipation
Heat generation in bearings is primarily due to elastohydrodynamic losses at roller/ring contacts. The heat generated is calculated using the equation Qgen = k4n M. Heat dissipation is influenced by temperature gradients from the bearing to the housing and shaft, and the heat carried away by circulating oil systems.
Heat generation in bearings is primarily due to elastohydrodynamic losses at roller/ring contacts. The heat generated is calculated using the equation Qgen = k4n M. Heat dissipation is influenced by temperature gradients from the bearing to the housing and shaft, and the heat carried away by circulating oil systems.
Torque Calculations
The running torque of a bearing depends on load, speed, lubrication, and internal characteristics. For spherical roller bearings, specific torque equations are provided, with coefficients based on series.
The running torque of a bearing depends on load, speed, lubrication, and internal characteristics. For spherical roller bearings, specific torque equations are provided, with coefficients based on series.
Lubrication
Lubrication minimizes rolling resistance and sliding friction, transfers heat, and protects against corrosion. The choice between oil and grease depends on the application, with oil preferred for high-speed and heat-dissipating applications.
Lubrication minimizes rolling resistance and sliding friction, transfers heat, and protects against corrosion. The choice between oil and grease depends on the application, with oil preferred for high-speed and heat-dissipating applications.
Oil Types and Viscosity
Petroleum and synthetic oils are used for lubrication, with synthetic oils offering better performance in extreme temperatures. Viscosity selection depends on load, speed, and environmental factors.
Petroleum and synthetic oils are used for lubrication, with synthetic oils offering better performance in extreme temperatures. Viscosity selection depends on load, speed, and environmental factors.
Typical Bearing Lubrication Oils
General-purpose rust and oxidation (R&O) inhibited oils are common for industrial applications. Extreme-pressure (EP) gear oils are used for heavily loaded equipment.
General-purpose rust and oxidation (R&O) inhibited oils are common for industrial applications. Extreme-pressure (EP) gear oils are used for heavily loaded equipment.
Viscosity and Temperature Considerations
Industrial oils are categorized by the ASTM/ISO viscosity grade system. High-temperature or slow-speed applications require higher viscosity grades, while low temperatures or high speeds necessitate lower viscosity grades.
Industrial oils are categorized by the ASTM/ISO viscosity grade system. High-temperature or slow-speed applications require higher viscosity grades, while low temperatures or high speeds necessitate lower viscosity grades.
Grease Composition and Characteristics
Greases are composed of base oils, thickening agents, and additives. Common thickeners include lithium, aluminum, and calcium soaps, as well as non-soap thickeners like polyurea.
Greases are composed of base oils, thickening agents, and additives. Common thickeners include lithium, aluminum, and calcium soaps, as well as non-soap thickeners like polyurea.
Low and High Temperature Performance
At low temperatures, starting torque in grease-lubricated bearings can be critical, and synthetic greases offer advantages for wide temperature ranges.
At low temperatures, starting torque in grease-lubricated bearings can be critical, and synthetic greases offer advantages for wide temperature ranges.
Contamination and Its Effects
Contaminants like abrasive particles and water can significantly reduce bearing life. Greases with high water resistance provide protection against moisture.
Contaminants like abrasive particles and water can significantly reduce bearing life. Greases with high water resistance provide protection against moisture.
Grease Selection and Application
Choosing the right grease involves considering its consistency, temperature stability, and resistance to chemical changes.
Choosing the right grease involves considering its consistency, temperature stability, and resistance to chemical changes.
Grease Use Guidelines
Bearings should be relubricated regularly, with intervals depending on operating temperature and sealing efficiency.
Bearings should be relubricated regularly, with intervals depending on operating temperature and sealing efficiency.
Lubrication Consistency
Grease consistency varies from semi-fluid to solid, measured by penetration number using a penetrometer.
Grease consistency varies from semi-fluid to solid, measured by penetration number using a penetrometer.
Grease Compatibility
A compatibility chart is provided to determine the best choice of grease types for different applications.
A compatibility chart is provided to determine the best choice of grease types for different applications.
Grease Lubrication for Bearings
Polyurea and lithium-based greases are preferred for general-purpose lubrication, especially in high moisture environments.
Polyurea and lithium-based greases are preferred for general-purpose lubrication, especially in high moisture environments.
Multi-Purpose Industrial Grease
Suitable greases include lithium complex or calcium sulfonate with anti-wear and corrosion inhibitors.
Suitable greases include lithium complex or calcium sulfonate with anti-wear and corrosion inhibitors.
Application Considerations
For high-speed applications, lighter base oil viscosity is recommended, while heavier viscosity is suitable for low-speed applications.
For high-speed applications, lighter base oil viscosity is recommended, while heavier viscosity is suitable for low-speed applications.
Thermal Reference Speed
This speed is based on thermal equilibrium under ISO 15312: 2003 conditions, balancing heat generation and conduction.
This speed is based on thermal equilibrium under ISO 15312: 2003 conditions, balancing heat generation and conduction.
Limiting Speed
This speed considers cage behavior and is based on predicted cage life equaling bearing fatigue life.
This speed considers cage behavior and is based on predicted cage life equaling bearing fatigue life.
Spherical Roller Bearings
Timken's spherical roller bearings are designed for high radial loads and consistent performance under misalignment and extreme conditions.
Timken's spherical roller bearings are designed for high radial loads and consistent performance under misalignment and extreme conditions.
Specifications and Modifications
The document lists various modification codes for bearings, such as W4 (inner ring marking for eccentricity), W6R (engineered surface coating), and W20 (outer ring with lubrication holes).
The document lists various modification codes for bearings, such as W4 (inner ring marking for eccentricity), W6R (engineered surface coating), and W20 (outer ring with lubrication holes).
Technical Data
Detailed tables provide dimensions, load ratings, and speed references for different bearing models.
Detailed tables provide dimensions, load ratings, and speed references for different bearing models.
Material and Construction
Bearings are made from carburizing-grade steel, with options for inner, outer, and roller components.
Bearings are made from carburizing-grade steel, with options for inner, outer, and roller components.
Mounting and Usage
Bearings can be ordered with a tapered bore for adapter-type mounting, indicated by the suffix 'K'.
Bearings can be ordered with a tapered bore for adapter-type mounting, indicated by the suffix 'K'.
Quality and Standards
Bearings are inspected to meet certain quality control requirements, ensuring reliability and performance in various industrial applications.
Bearings are inspected to meet certain quality control requirements, ensuring reliability and performance in various industrial applications.
Conclusion
The catalog serves as a comprehensive guide for selecting and understanding the specifications of Timken® Spherical Roller Bearings, providing essential data for engineers and technicians in the field.
The catalog serves as a comprehensive guide for selecting and understanding the specifications of Timken® Spherical Roller Bearings, providing essential data for engineers and technicians in the field.
Specifications
The catalog provides detailed specifications for each bearing model, including bore diameter, outer diameter, width, dynamic and static load ratings, and maximum fillet radius.
The catalog provides detailed specifications for each bearing model, including bore diameter, outer diameter, width, dynamic and static load ratings, and maximum fillet radius.
Procedures
Instructions for mounting bearings with tapered bores are provided, including the addition of a suffix "K" to the bearing number for adapter-type mounting.
Instructions for mounting bearings with tapered bores are provided, including the addition of a suffix "K" to the bearing number for adapter-type mounting.
Standards and Norms
The catalog references the Timken Engineering Manual for additional technical data, including shaft and housing fits, internal clearances, and tolerances.
The catalog references the Timken Engineering Manual for additional technical data, including shaft and housing fits, internal clearances, and tolerances.
Recommendations
The document recommends consulting the engineering section for instructions on using factors for both inch and metric calculations.
The document recommends consulting the engineering section for instructions on using factors for both inch and metric calculations.
Key Data from Tables
The tables in the document list various bearing models with their respective dimensions, load ratings, and speed limits.
The tables in the document list various bearing models with their respective dimensions, load ratings, and speed limits.
Additional Sections
The catalog includes sections on SNT spherical roller bearing plummer blocks, detailing their design, construction, mounting, lubrication, and sealing options.
The catalog includes sections on SNT spherical roller bearing plummer blocks, detailing their design, construction, mounting, lubrication, and sealing options.
Introduction
Timken's spherical roller bearing plummer blocks are designed for high performance in heavy-duty applications.
Timken's spherical roller bearing plummer blocks are designed for high performance in heavy-duty applications.
Design and Construction
The plummer blocks are available with either tapered bore bearings with adapters for straight shafts or cylindrical bore bearings for shouldered shafts.
The plummer blocks are available with either tapered bore bearings with adapters for straight shafts or cylindrical bore bearings for shouldered shafts.
Mounting
Spherical roller bearing plummer blocks can be mounted on straight shafts using tapered bore bearings and adapter assemblies, or on shouldered shafts with cylindrical bore bearings.
Spherical roller bearing plummer blocks can be mounted on straight shafts using tapered bore bearings and adapter assemblies, or on shouldered shafts with cylindrical bore bearings.
Seals
Timken offers multiple sealing options for SNT plummer blocks, including double-lip, V-ring, labyrinth, and taconite seals.
Timken offers multiple sealing options for SNT plummer blocks, including double-lip, V-ring, labyrinth, and taconite seals.
Lubrication
The plummer blocks are designed for grease lubrication but can be modified for oil-bath and circulating oil systems.
The plummer blocks are designed for grease lubrication but can be modified for oil-bath and circulating oil systems.
Installation Guides
Installation involves cleaning the work area, checking shaft dimensions, and ensuring proper surface roughness and flatness.
Installation involves cleaning the work area, checking shaft dimensions, and ensuring proper surface roughness and flatness.
Load Ratings and Life
Load ratings for the bearings are provided in the catalog, and the ability of the plummer block to carry the operating load should be considered.
Load ratings for the bearings are provided in the catalog, and the ability of the plummer block to carry the operating load should be considered.
Installation Guides for SNT Spherical Roller Bearing Plummer Blocks
1. General Instructions:
- Ensure the work area is clean and the shaft seat is dimensionally accurate and free from imperfections.
- Surface roughness should be Ra ≤ 12.5 μm, and flatness should be within specified limits.
- Position the housing correctly relative to the adapter sleeve and ensure the grease fitting is oriented properly.
- Ensure the work area is clean and the shaft seat is dimensionally accurate and free from imperfections.
- Surface roughness should be Ra ≤ 12.5 μm, and flatness should be within specified limits.
- Position the housing correctly relative to the adapter sleeve and ensure the grease fitting is oriented properly.
2. Mounting Housings with Labyrinth Seals:
- Fill the bearing completely with grease and distribute the remainder in the housing.
- Install the shaft with bearing and labyrinth rings, ensuring proper alignment and tightening of bolts.
- Insert O-ring cords carefully to avoid damage.
- Fill the bearing completely with grease and distribute the remainder in the housing.
- Install the shaft with bearing and labyrinth rings, ensuring proper alignment and tightening of bolts.
- Insert O-ring cords carefully to avoid damage.
3. Mounting Housings with V-Ring Seals:
- Similar to labyrinth seals, but includes additional steps for V-ring and sealing washer arrangement.
- Ensure proper alignment and lubrication of V-ring counterfaces.
- Similar to labyrinth seals, but includes additional steps for V-ring and sealing washer arrangement.
- Ensure proper alignment and lubrication of V-ring counterfaces.
4. Mounting Housings with Taconite Seals:
- Follow similar steps as above, with specific instructions for taconite seals and O-section cords.
- Ensure grease purges from labyrinth rings before the first test run.
- Follow similar steps as above, with specific instructions for taconite seals and O-section cords.
- Ensure grease purges from labyrinth rings before the first test run.
5. Grease Fill Recommendations:
- For normal applications, fill bearing void to 100% and housing void to 40-60%.
- Adjust grease fill for low-speed and high-speed applications accordingly.
- For normal applications, fill bearing void to 100% and housing void to 40-60%.
- Adjust grease fill for low-speed and high-speed applications accordingly.
6. Torque Specifications:
- Detailed torque specifications for cap and attachment bolts are provided in a table.
- Ensure bolts are tightened to the specified torque to avoid equipment damage.
- Detailed torque specifications for cap and attachment bolts are provided in a table.
- Ensure bolts are tightened to the specified torque to avoid equipment damage.
7. Safety Warnings:
- Proper maintenance and handling are critical to avoid risks of injury or equipment damage.
- Special care is needed in explosive atmospheres and when using tools for installation.
- Proper maintenance and handling are critical to avoid risks of injury or equipment damage.
- Special care is needed in explosive atmospheres and when using tools for installation.
8. Additional Information:
- Reference the Timken Industrial Maintenance Manual for further guidance.
- Contact a Timken sales engineer for any questions or clarifications.
- Reference the Timken Industrial Maintenance Manual for further guidance.
- Contact a Timken sales engineer for any questions or clarifications.
Design and Construction
Timken's spherical roller bearing pillow blocks are available with either tapered bore bearings with adapters for straight shafts or cylindrical bore bearings for shouldered shafts.
Timken's spherical roller bearing pillow blocks are available with either tapered bore bearings with adapters for straight shafts or cylindrical bore bearings for shouldered shafts.
Mounting
The pillow blocks can be mounted using either adapter or straight bore methods.
The pillow blocks can be mounted using either adapter or straight bore methods.
Fixed and Float Pillow Blocks
Timken pillow blocks can be installed in fixed or float positions.
Timken pillow blocks can be installed in fixed or float positions.
Closed-End Installations
For applications where the shaft terminates inside the pillow block, end-cap inserts with O-rings are available to seal out contaminants and retain lubricant.
For applications where the shaft terminates inside the pillow block, end-cap inserts with O-rings are available to seal out contaminants and retain lubricant.
Lubrication
Designed for grease and oil-bath lubrication, Timken pillow blocks can also be adapted for circulating oil or oil/air-mist systems.
Designed for grease and oil-bath lubrication, Timken pillow blocks can also be adapted for circulating oil or oil/air-mist systems.
Seals
Triple-ring labyrinth seals are standard to exclude contaminants and retain lubricants.
Triple-ring labyrinth seals are standard to exclude contaminants and retain lubricants.
Load Ratings and Life
Load ratings are provided in the catalog's dimension tables, and life calculation formulas are available in the Engineering Manual.
Load ratings are provided in the catalog's dimension tables, and life calculation formulas are available in the Engineering Manual.
Specifications
Detailed specifications for various series, including SAF225 and SAF226, are provided, listing dimensions, required components, and assembly weights.
Detailed specifications for various series, including SAF225 and SAF226, are provided, listing dimensions, required components, and assembly weights.
Overview
The document is a technical catalog from Timken® detailing specifications and ordering information for SAF and SDAF series spherical roller bearing pillow blocks.
The document is a technical catalog from Timken® detailing specifications and ordering information for SAF and SDAF series spherical roller bearing pillow blocks.
Specifications
The catalog provides detailed dimensions and specifications for various pillow block assemblies, including shaft diameters, housing dimensions, and required components.
The catalog provides detailed dimensions and specifications for various pillow block assemblies, including shaft diameters, housing dimensions, and required components.
Ordering Instructions
- To order a complete pillow block assembly, use the basic number listed in the tables.
- For housing only, use the numbers in the "Housing Only" column.
- Assemblies are available in cast iron, with options for cast steel (add "S" to the prefix) or ductile iron (add "D" to the prefix).
- Specify "CL" for one end closed assembly and "Float" or "FL" for float units.
- To order a complete pillow block assembly, use the basic number listed in the tables.
- For housing only, use the numbers in the "Housing Only" column.
- Assemblies are available in cast iron, with options for cast steel (add "S" to the prefix) or ductile iron (add "D" to the prefix).
- Specify "CL" for one end closed assembly and "Float" or "FL" for float units.
Key Components
- Adapter Assembly: Includes sleeve, locknut, and lockwasher.
- Stabilizing Ring: Used for fixed (FX) block; not for float (FL) mounting.
- Triple Seal: Two required per assembly.
- Adapter Assembly: Includes sleeve, locknut, and lockwasher.
- Stabilizing Ring: Used for fixed (FX) block; not for float (FL) mounting.
- Triple Seal: Two required per assembly.
Tables and Data
The document contains extensive tables listing dimensions, weights, and part numbers for various configurations of pillow block assemblies.
The document contains extensive tables listing dimensions, weights, and part numbers for various configurations of pillow block assemblies.
Recommendations
- Ensure correct shaft size is specified when ordering non-standard assemblies.
- Refer to page 160, table 32 for suggested shaft diameter S-1 tolerances.
- Ensure correct shaft size is specified when ordering non-standard assemblies.
- Refer to page 160, table 32 for suggested shaft diameter S-1 tolerances.
Overview
This document provides detailed specifications and ordering information for Timken's SAF and SDAF series spherical roller bearing pillow blocks.
This document provides detailed specifications and ordering information for Timken's SAF and SDAF series spherical roller bearing pillow blocks.
Specifications
The document lists various sizes of pillow block assemblies, detailing dimensions such as diameter, length, and weight.
The document lists various sizes of pillow block assemblies, detailing dimensions such as diameter, length, and weight.
Ordering Instructions
For non-standard pillow block assemblies, the shaft size must be specified.
For non-standard pillow block assemblies, the shaft size must be specified.
Material Options
Assemblies are typically furnished in cast iron. If cast steel or ductile iron is desired, the letter 'S' or 'D' should be added to the alpha prefix of the part number.
Assemblies are typically furnished in cast iron. If cast steel or ductile iron is desired, the letter 'S' or 'D' should be added to the alpha prefix of the part number.
Key Notes
- Bold shaft sizes are standard.
- Suggested shaft diameter tolerances are provided in a referenced table.
- Stabilizing rings are used for fixed blocks and should not be used for float mounting.
- For larger applications (SAF23048 and above), the shaft size must be included in the part description.
- Bold shaft sizes are standard.
- Suggested shaft diameter tolerances are provided in a referenced table.
- Stabilizing rings are used for fixed blocks and should not be used for float mounting.
- For larger applications (SAF23048 and above), the shaft size must be included in the part description.
Overview
This document is a technical catalog for Timken® Spherical Roller Bearing Pillow Blocks, specifically focusing on the SDAF222, SDAF223, SDAF231, and SDAF232 series.
This document is a technical catalog for Timken® Spherical Roller Bearing Pillow Blocks, specifically focusing on the SDAF222, SDAF223, SDAF231, and SDAF232 series.
Specifications
The document lists various dimensions and specifications for each pillow block assembly, including diameter, length, width, height, oil level, and weight.
The document lists various dimensions and specifications for each pillow block assembly, including diameter, length, width, height, oil level, and weight.
Assembly Components
Each assembly includes a housing cap and base, cap bolts, bearing, locknut and washer, stabilizing ring, and triple-ring seals.
Each assembly includes a housing cap and base, cap bolts, bearing, locknut and washer, stabilizing ring, and triple-ring seals.
Ordering Information
To order pillow block housing only, specific numbers listed in the 'Housing Only' column should be used.
To order pillow block housing only, specific numbers listed in the 'Housing Only' column should be used.
Additional Notes
The document includes references to page 160, table 32 for suggested shaft diameter tolerances.
The document includes references to page 160, table 32 for suggested shaft diameter tolerances.
Specifications
The document provides detailed specifications for Timken® spherical roller bearings and their accessories, including adapter sleeves, locknuts, and locking devices.
The document provides detailed specifications for Timken® spherical roller bearings and their accessories, including adapter sleeves, locknuts, and locking devices.
Procedures
The installation procedure for DUSTAC™ shaft seals is outlined, emphasizing the importance of checking shaft diameters, removing burrs, and ensuring cleanliness.
The installation procedure for DUSTAC™ shaft seals is outlined, emphasizing the importance of checking shaft diameters, removing burrs, and ensuring cleanliness.
Standards and Recommendations
The document highlights the importance of adhering to print specifications for shaft diameters and the use of stabilizing rings for fixed bearings.
The document highlights the importance of adhering to print specifications for shaft diameters and the use of stabilizing rings for fixed bearings.
Key Features and Benefits
DUSTAC™ shaft seals provide superior protection against contaminants compared to triple-labyrinth seals.
DUSTAC™ shaft seals provide superior protection against contaminants compared to triple-labyrinth seals.
Tables and Data
Several tables provide detailed information on pillow block housing numbers, shaft diameters, and corresponding seal assemblies.
Several tables provide detailed information on pillow block housing numbers, shaft diameters, and corresponding seal assemblies.
Installation and Maintenance
The document provides guidance on the installation and maintenance of spherical roller bearings, emphasizing the importance of proper fit and alignment.
The document provides guidance on the installation and maintenance of spherical roller bearings, emphasizing the importance of proper fit and alignment.
Sine Bars and Accessories
Sine bars are available in various sizes to accommodate individual needs.
Sine bars are available in various sizes to accommodate individual needs.
Sine Bar Sizes
The document lists specific sine bar sizes and their corresponding part numbers.
The document lists specific sine bar sizes and their corresponding part numbers.
Spherical Roller Bearing Accessories
The document provides a comprehensive index of metric and inch accessories for spherical roller bearings.
The document provides a comprehensive index of metric and inch accessories for spherical roller bearings.
Metric H Adapter Sleeves
These sleeves are used for effective tapered bore bearing assembly and include a mounting sleeve, locknut, and lockwasher or lockplate.
These sleeves are used for effective tapered bore bearing assembly and include a mounting sleeve, locknut, and lockwasher or lockplate.
Overview
This document is an excerpt from the Timken Spherical Roller Bearing Catalog, focusing on metric and inch accessories, specifically withdrawal sleeves used for dismounting tapered bore bearings from shafts.
This document is an excerpt from the Timken Spherical Roller Bearing Catalog, focusing on metric and inch accessories, specifically withdrawal sleeves used for dismounting tapered bore bearings from shafts.
Specifications
- Withdrawal Sleeves: These are used for effective dismounting of tapered bore bearings.
- Dimensions: Key dimensions include L (length), L1 (length after mounting), b (width), D1 (diameter), and weight in kg.
- Thread Types: The document specifies metric (M) and trapezoid (Tr) thread types.
Hydraulic Withdrawal Sleeves
- These sleeves facilitate the dismounting of large bearings with hydraulic assistance.
- Specifications include additional parameters such as Ro (oil hole size), e (distance from end), and t (thread length).
Recommendations
- Consultation with a Timken sales engineer is recommended for dimensions not listed in the catalog.
Key Observations
- The document emphasizes the importance of correct sleeve selection based on bearing size and application requirements.
- Hydraulic sleeves are particularly useful for larger bearings, providing ease of dismounting with hydraulic pressure.
Overview
This document is a technical catalog from Timken, detailing specifications and instructions for spherical roller bearing accessories, specifically focusing on hydraulic withdrawal sleeves and hydraulic nuts.
This document is a technical catalog from Timken, detailing specifications and instructions for spherical roller bearing accessories, specifically focusing on hydraulic withdrawal sleeves and hydraulic nuts.
Specifications
- Hydraulic Withdrawal Sleeves: These are used for dismounting tapered bore bearings from shafts.
- Hydraulic Nuts: Designed for installing and removing tapered bore bearings, these nuts allow for controlled reduction of bearing internal clearance.
Procedures
- Installation and Removal: Instructions are provided for using hydraulic nuts.
- Maintenance: Regular maintenance includes checking for oil leaks, replacing O-ring seals if necessary, and applying light oil to prevent corrosion during storage.
Standards and Recommendations
- All hydraulic nuts come with quick connection fittings and spare O-rings.
- Proper maintenance and handling practices are critical to avoid risks of injury or damage.
Key Data from Tables
- Tables provide detailed measurements for each component, including thread type, dimensions, and weight.
Overview
This document is a section of the Timken Spherical Roller Bearing Catalog, focusing on metric and inch accessories, specifically locknuts, lockwashers, lockplates, and pull-type sleeves used in the mounting of tapered bore bearings on shafts.
This document is a section of the Timken Spherical Roller Bearing Catalog, focusing on metric and inch accessories, specifically locknuts, lockwashers, lockplates, and pull-type sleeves used in the mounting of tapered bore bearings on shafts.
Metric Locknuts
The catalog provides detailed specifications for metric locknuts, including thread size, dimensions, and weight.
The catalog provides detailed specifications for metric locknuts, including thread size, dimensions, and weight.
Metric Lockwashers
Lockwashers are detailed with specifications such as thread size, dimensions, and weight per 100 pieces.
Lockwashers are detailed with specifications such as thread size, dimensions, and weight per 100 pieces.
Metric Lockplates
Specifications for lockplates include dimensions and weight per 100 pieces.
Specifications for lockplates include dimensions and weight per 100 pieces.
Inch Accessories – Pull-Type Sleeves
The document describes SNW and SNP assemblies, which consist of a sleeve, locknut, and either a lockwasher or lockplate.
The document describes SNW and SNP assemblies, which consist of a sleeve, locknut, and either a lockwasher or lockplate.
Key Points
- Metric locknuts and lockwashers are available in various sizes and materials.
- Lockplates are designed to fit specific locknuts.
- Pull-type sleeves are used for mounting bearings and come in SNW and SNP configurations.
- Detailed tables provide comprehensive specifications for each component.
- Metric locknuts and lockwashers are available in various sizes and materials.
- Lockplates are designed to fit specific locknuts.
- Pull-type sleeves are used for mounting bearings and come in SNW and SNP configurations.
- Detailed tables provide comprehensive specifications for each component.
See more
Catalog excerpts
® 12-18 Order No. 10446 | Timken is a registered trademark of The Timken Company. | © 2018 The Timken Company TIMKEN® SPHERICAL ROLLER BEARING CATALOG To view more Timken catalogs, go to www.timken.com/catalogs for interactive versions, or to download a catalog app for your smart phone or mobile device scan the QR code or go to timkencatalogs.squawqr.com. TIMKEN® SPHERICAL ROLLER BEARING CATALOG The Timken team applies their know-how to improve the reliability and performance of machinery in diverse markets worldwide. The company designs, makes and markets bearings, gear drives, automated lubrication systems, belts, brakes, clutches, chain, couplings, linear motion products and related power transmission rebuild and repair services.
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TIMKEN OVERVIEW SPHERICAL ROLLER BEARING CATALOG INDEX TIMKEN OVERVIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 SHELF LIFE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 ENGINEERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Bearing Types and Cages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Metric System Tolerances. . ....
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TIMKEN OVERVIEW GROW STRONGER WITH TIMKEN Every day, people around the world count on the strength of Timken. Our expertise in metallurgy, friction management and mechanical power transmission helps them accelerate improvements in productivity and uptime. We supply products and services that can help keep your operations moving forward, whether you need drive train kits for commercial vehicles, durable housings for bearings in dirty environments, couplings that avoid metal-to-metal contact between motors and gearboxes, repair services for bearings and gearboxes, roller chain for dry, abrasive...
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TIMKEN OVERVIEW INCREASE YOUR EQUIPMENT UPTIME In addition to high-quality bearings and mechanical power transmission components, we provide valuable integrated products and services. For example, we offer repair services, on-site technical support and industrial services for inspecting, repairing and upgrading gearboxes, electric motors and controls. Additionally, we offer a broad selection of seals, premium lubricants, lubricators, couplings and chain to keep your operations moving smoothly. Our 12 technology centers in the United States, Europe and Asia help pioneer tomorrow’s innovations...
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SPHERICAL ROLLER BEARING INTRODUCTION INDUSTRIAL INNOVATOR Today, manufacturing and support at their plants, and processing equipment handle options for additional support from heavier loads, faster speeds and application engineers who specialize greater expectations than ever before. in a variety of industrial applications. As finished-product quality requirements increase, producers continue to place a very high CORE CAPABILITIES premium on equipment uptime and performance. Timken has evolved from its early roots as a bearing Timken has more than a century of experience developing producer...
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SPHERICAL ROLLER BEARING INTRODUCTION INCREASED PERFORMANCE AND UPTIME LONGER BEARING LIFE LOWER OPERATING COSTS TIMKEN. LEADING SPHERICAL ROLLER BEARING TECHNOLOGY, PERFORMANCE Timken has set the standard for spherical roller bearing technology – resulting in bearings that offer increased performance and uptime, longer life and lower operating costs. Industry best design practices led to the development of optimized internal geometries and surface finishes, and improved cage and roller piloting design – resulting in bearings that run cooler, faster, and longer than the competition. With a significant...
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SPHERICAL ROLLER BEARING INTRODUCTION ADVANCED BEARING AND CAGE DESIGN Type EJ Bearing Design Increased Performance Stronger Results Above pitch cage design increases cage stiffness. Reduces stress under shock loading or high acceleration conditions. Cage pocket guides roller.* Eliminates the need for a center guide ring – reducing friction and lowering bearing operating temperatures. Hardened cage on all sizes.* Provides wear resistance and fatigue strength at higher levels. Face slots in cage.* Provides better oil lubricant flow and contaminant purging, and reduces weight. Better able to handle...
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BROADEST RANGE IN THE INDUSTRY, 25MM BORE TO 1250MM BORE Timken offers the broadest range of sizes in both steel cage and brass cage designs for spherical roller bearings. TIMKEN® SPHERICAL ROLLER BEARING CATALOG 7
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PRODUCTS AND SERVICES We offer equipment builders and operators one of the most extensive friction-management product and service portfolios in the industry. We also strictly adhere to the Timken Quality Management System in every plant worldwide, so each bearing product meets the same high quality standards - no matter where in the world it is manufactured. BEARINGS Putting advanced ideas in motion for more than a century has led to our best-in-class collection of bearings designed for every purpose, every application and every industry. If it moves, chances are we've played a role in the technology...
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BALL BEARINGS From electric motors to agricultural implements to food processing equipment, Timken ball bearings are engineered to perform in a wide range of applications and conditions. • Radial ball bearings tolerate relatively high-speed operation under various load conditions • Angular contact ball bearing designs include contact angles that support both radial and axial loads HOUSED UNITS Maintaining critical uptime can require more durable, heavy-duty components capable of protecting spherical, tapered and ball bearings in debris-filled, contaminated or high-moisture environments. Timken...
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HIGH-PERFORMANCE BEARING SOLUTIONS Timken provides a variety of high-performance bearing solutions, including Timken® AquaSpexx®, DuraSpexx® and thin dense chrome bearings for corrosion protection. Our debris-resistant bearings are ideal for contaminated and/or marginal lubrication conditions. We also provide customized bearing solutions such as special race profiles to meet special application requirements. In addition to component geometry and metallurgy, we find many ways to enhance bearing performance by applying unique surface finishes and special coatings on rollers, raceways and other...
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