Kaydon bearing solutions
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Kaydon bearing solutions
Product catalog summary
Introduction to Reali-Slim Bearings
Kaydon's Reali-Slim bearings are designed for compact and lightweight applications, offering significant space and weight savings. These bearings maintain a constant cross-section regardless of bore size, leading to potential system cost reductions of up to 40%. They are suitable for various industries, including industrial machinery, aerospace, defense, oil & gas, medical, semiconductor machinery, and renewable energy.
Kaydon's Reali-Slim bearings are designed for compact and lightweight applications, offering significant space and weight savings. These bearings maintain a constant cross-section regardless of bore size, leading to potential system cost reductions of up to 40%. They are suitable for various industries, including industrial machinery, aerospace, defense, oil & gas, medical, semiconductor machinery, and renewable energy.
Product Specifications and Selection
The document provides a comprehensive guide to selecting Reali-Slim bearings, including open and sealed types, precision tolerances, and recommended fits. It covers various materials such as AISI 52100 steel and AISI 440C stainless steel, and offers options with Endurakote plating for enhanced durability.
The document provides a comprehensive guide to selecting Reali-Slim bearings, including open and sealed types, precision tolerances, and recommended fits. It covers various materials such as AISI 52100 steel and AISI 440C stainless steel, and offers options with Endurakote plating for enhanced durability.
Applications Engineering
This section includes recommendations for bearing selection, capacity, life, and load analysis. It emphasizes the importance of understanding load scenarios to optimize bearing performance.
This section includes recommendations for bearing selection, capacity, life, and load analysis. It emphasizes the importance of understanding load scenarios to optimize bearing performance.
Separator Types and Performance
Different separator types are discussed, including non-metallic, phenolic, brass, and nylon options. The section also covers limiting speeds, torque, and axis deviation, providing insights into performance optimization.
Different separator types are discussed, including non-metallic, phenolic, brass, and nylon options. The section also covers limiting speeds, torque, and axis deviation, providing insights into performance optimization.
Mounting and Maintenance
Guidelines for mounting, inspection, installation, lubrication, and maintenance of Reali-Slim bearings are provided to ensure longevity and reliability.
Guidelines for mounting, inspection, installation, lubrication, and maintenance of Reali-Slim bearings are provided to ensure longevity and reliability.
Additional Products and Resources
The document mentions other Kaydon products like KT series tapered roller bearings and offers resources such as CAD downloads, interactive bearing selectors, and Reali-Design software for design assistance.
The document mentions other Kaydon products like KT series tapered roller bearings and offers resources such as CAD downloads, interactive bearing selectors, and Reali-Design software for design assistance.
Appendix and Sales Information
Includes terms, definitions, warranty information, design aids, and distributor contacts. It also provides a request form for bearing proposal data and conversion factors.
Includes terms, definitions, warranty information, design aids, and distributor contacts. It also provides a request form for bearing proposal data and conversion factors.
Introduction to Reali-Slim Thin Section Bearings
This document provides an overview of Reali-Slim thin section bearings, highlighting their design efficiency, load scenarios, and product availability. The Reali-Slim product line includes seven open series and five sealed series, with bore diameters ranging from 1 inch to 40 inches. These bearings are available in three configurations: radial contact (Type C), angular contact (Type A), and four-point contact (Type X).
This document provides an overview of Reali-Slim thin section bearings, highlighting their design efficiency, load scenarios, and product availability. The Reali-Slim product line includes seven open series and five sealed series, with bore diameters ranging from 1 inch to 40 inches. These bearings are available in three configurations: radial contact (Type C), angular contact (Type A), and four-point contact (Type X).
Product Line Overview
The Reali-Slim bearings are designed to maintain a constant cross-section as the bore diameter increases, which is beneficial for standardizing components across different product sizes. The document also introduces additional product variants such as Ultra-Slim, Reali-Slim TT series, and KT thin section taper bearings.
The Reali-Slim bearings are designed to maintain a constant cross-section as the bore diameter increases, which is beneficial for standardizing components across different product sizes. The document also introduces additional product variants such as Ultra-Slim, Reali-Slim TT series, and KT thin section taper bearings.
Specifications and Options
Standard Reali-Slim bearings are manufactured to Kaydon Precision Class 1 specifications. They can be customized with various options including changes in diametral clearance, preloading, and special materials. The document emphasizes the importance of specification control drawings for product traceability.
Standard Reali-Slim bearings are manufactured to Kaydon Precision Class 1 specifications. They can be customized with various options including changes in diametral clearance, preloading, and special materials. The document emphasizes the importance of specification control drawings for product traceability.
Bearing Load Scenarios
Reali-Slim bearings are designed to handle radial, axial, and moment loads. The document provides equations and diagrams to explain how these loads interact with the bearings. Type C bearings are primarily for radial loads, Type A for greater thrust capacity, and Type X for handling multiple load types simultaneously.
Reali-Slim bearings are designed to handle radial, axial, and moment loads. The document provides equations and diagrams to explain how these loads interact with the bearings. Type C bearings are primarily for radial loads, Type A for greater thrust capacity, and Type X for handling multiple load types simultaneously.
Specifications for Standard Bearings
The document details the material analysis, heat treatment, precision, and quality control standards for Reali-Slim bearings. It also outlines the design of separators and the importance of proper cleaning and packaging.
The document details the material analysis, heat treatment, precision, and quality control standards for Reali-Slim bearings. It also outlines the design of separators and the importance of proper cleaning and packaging.
Conclusion
Reali-Slim bearings offer a compact and efficient design solution for various applications, with the flexibility to meet specific requirements through customization. The document provides a comprehensive guide to selecting and specifying these bearings for optimal performance.
Reali-Slim bearings offer a compact and efficient design solution for various applications, with the flexibility to meet specific requirements through customization. The document provides a comprehensive guide to selecting and specifying these bearings for optimal performance.
Metric Series Ball Bearings (BB Series)
This section provides an overview of the Metric Series Ball Bearings, highlighting their specifications and applications. These bearings are designed for various industrial uses, offering durability and precision.
This section provides an overview of the Metric Series Ball Bearings, highlighting their specifications and applications. These bearings are designed for various industrial uses, offering durability and precision.
Ultra-Slim Thin Section Bearings – Types A, C, X
Details the types of ultra-slim thin section bearings, focusing on their design and suitability for applications requiring minimal space and weight. Types A, C, and X are discussed, each with unique characteristics for specific engineering needs.
Details the types of ultra-slim thin section bearings, focusing on their design and suitability for applications requiring minimal space and weight. Types A, C, and X are discussed, each with unique characteristics for specific engineering needs.
Precision Tolerances and Recommended Fits for Ultra-Slim Bearings
This section outlines the precision tolerances and recommended fits for ultra-slim bearings, ensuring optimal performance and longevity. It provides guidelines for selecting the appropriate fit based on application requirements.
This section outlines the precision tolerances and recommended fits for ultra-slim bearings, ensuring optimal performance and longevity. It provides guidelines for selecting the appropriate fit based on application requirements.
Reali-Slim TT Series Small-Scale, Thin Section Turntable Bearings
Describes the Reali-Slim TT Series, emphasizing their compact design and efficiency in turntable applications. These bearings are ideal for systems where space is limited but performance cannot be compromised.
Describes the Reali-Slim TT Series, emphasizing their compact design and efficiency in turntable applications. These bearings are ideal for systems where space is limited but performance cannot be compromised.
Selection Tables for Standard Reali-Slim Bearings
Includes detailed selection tables for standard Reali-Slim bearings, providing dimensions, capacities, and weights. These tables assist in choosing the right bearing for specific load and size requirements.
Includes detailed selection tables for standard Reali-Slim bearings, providing dimensions, capacities, and weights. These tables assist in choosing the right bearing for specific load and size requirements.
Open Reali-Slim Bearing Selections
Focuses on Type A – Angular Contact bearings, explaining their design features such as deep groove and reduced shoulder. These bearings are suitable for radial and single-direction thrust loads and can be used in conjunction with similar bearings for enhanced performance.
Focuses on Type A – Angular Contact bearings, explaining their design features such as deep groove and reduced shoulder. These bearings are suitable for radial and single-direction thrust loads and can be used in conjunction with similar bearings for enhanced performance.
Key Data from Tables
The tables provide comprehensive data on various bearing series (KA, KAA, KB, KC, KD, KF, KG), including dimensions, dynamic and static capacities, and approximate weights. This information is crucial for engineers to select bearings that meet specific mechanical and load requirements.
The tables provide comprehensive data on various bearing series (KA, KAA, KB, KC, KD, KF, KG), including dimensions, dynamic and static capacities, and approximate weights. This information is crucial for engineers to select bearings that meet specific mechanical and load requirements.
Conclusion
The document serves as a technical guide for selecting and understanding the specifications of various bearing types offered by Kaydon. It emphasizes the importance of precision and fit in bearing selection to ensure optimal performance in industrial applications.
The document serves as a technical guide for selecting and understanding the specifications of various bearing types offered by Kaydon. It emphasizes the importance of precision and fit in bearing selection to ensure optimal performance in industrial applications.
Overview: The document provides detailed specifications and selection tables for Kaydon's Reali-Slim bearings, specifically focusing on Type X four-point contact bearings. These bearings are designed for applications involving multiple loads, allowing for radial, thrust, and moment loads individually or in combination.
Specifications: The document lists various series of bearings (KB, KC, KD, KF, KG) with detailed dimensions, dynamic and static capacities, and approximate weights. Each series is tailored for specific load capacities and applications.
Key Features: - Unique internal geometry allows for multiple load applications. - A single four-point contact bearing can replace two bearings in many applications. - Bearings are available with snap-over separators and different ball sizes.
Selection Tables: The tables provide comprehensive data on bore size, outside diameter, land diameters, radial and thrust capacities, moment capacities, and weights for each bearing type. Popular items are highlighted for ease of selection.
Seals and Shields: The document explains the importance of keeping bearings clean and well-lubricated. It describes the differences between seals and shields, noting that seals provide more effective protection but may limit speed due to increased torque and heat generation. Integral seals and shields offer compact design advantages.
Recommendations: - Choose bearings based on specific load requirements and environmental conditions. - Consider sealed or shielded options for enhanced protection and longevity. - Consult Kaydon product engineering for hybrid series bearings and specific application needs.
Overview: The document provides detailed specifications and selection tables for various types of Reali-Slim bearings, including JA/JB, JU, JG, and EA/EB series. These bearings are designed for specific applications, offering features like double-sealing and shielding to protect against environmental factors.
Specifications: The document outlines the dimensions, capacities, limiting speeds, torque, and approximate weights for each bearing type. It includes detailed tables for each series, specifying bore size, outside diameter, dynamic and static capacities, and other critical parameters.
Seals and Shields: The document describes different sealing and shielding options, such as nitrile lip-type seals and washer shields made from precision flat stock. These components are crucial for isolating bearings from hostile environments and debris.
Selection Tables: The selection tables provide a comprehensive list of bearings with their respective specifications. Each table includes information on dimensions, load capacities, limiting speeds, and torque requirements, allowing for informed selection based on application needs.
Key Features: - Double-sealed and shielded options for enhanced protection. - Available in stainless steel for specific applications. - Designed for radial and thrust load applications. - Snap-over separators and chamfered corners for improved performance.
Recommendations: When selecting bearings, consider the specific load requirements and environmental conditions. For applications involving multiple loads, the Type X four-point contact bearings may replace two bearings, offering a more efficient solution.
Specifications:
The document provides detailed specifications for Reali-Slim bearings, including dimensions in inches and precision tolerances. It highlights that diametral clearance can vary widely based on bearing, housing, and shaft tolerances. The document specifies total width tolerance for Duplexed Type A Bearings and race width tolerance for Single Type C, X, A Bearings.
The document provides detailed specifications for Reali-Slim bearings, including dimensions in inches and precision tolerances. It highlights that diametral clearance can vary widely based on bearing, housing, and shaft tolerances. The document specifies total width tolerance for Duplexed Type A Bearings and race width tolerance for Single Type C, X, A Bearings.
Procedures:
The document advises contacting Kaydon for design assistance when non-standard diametral clearances or specific performance characteristics are required. It also outlines the application of Endurakote plating for corrosion resistance and wear improvement.
The document advises contacting Kaydon for design assistance when non-standard diametral clearances or specific performance characteristics are required. It also outlines the application of Endurakote plating for corrosion resistance and wear improvement.
Standards:
The bearings are classified under Precision Class 4 and 6, referencing ABEC 5F and 7F standards, respectively. The document provides recommended shaft and housing diameters for steel supports with standard bearing diametral clearance.
The bearings are classified under Precision Class 4 and 6, referencing ABEC 5F and 7F standards, respectively. The document provides recommended shaft and housing diameters for steel supports with standard bearing diametral clearance.
Recommendations:
Endurakote plating is recommended for bearings to enhance corrosion resistance and wear resistance. It is particularly beneficial for larger diameter bearings or when quick delivery is critical. The document suggests that Endurakote plating can be applied to any type of bearing and most bearing materials.
Endurakote plating is recommended for bearings to enhance corrosion resistance and wear resistance. It is particularly beneficial for larger diameter bearings or when quick delivery is critical. The document suggests that Endurakote plating can be applied to any type of bearing and most bearing materials.
Key Data from Tables:
The tables provide detailed measurements for bearing sizes, including bearing diameters, radial and axial runout, and diametral clearance before installation. The tables also list the dynamic and static capacities of bearings in pounds.
The tables provide detailed measurements for bearing sizes, including bearing diameters, radial and axial runout, and diametral clearance before installation. The tables also list the dynamic and static capacities of bearings in pounds.
Endurakote Plating Properties:
The document describes Endurakote plating as having a hardness exceeding 70 Rockwell "C" and a low coefficient of friction. It adheres well to base materials and enhances corrosion resistance, withstanding temperatures from -65°F to 250°F.
The document describes Endurakote plating as having a hardness exceeding 70 Rockwell "C" and a low coefficient of friction. It adheres well to base materials and enhances corrosion resistance, withstanding temperatures from -65°F to 250°F.
Applications and Advantages:
Endurakote plating is used in food processing equipment and provides significant advantages in terms of corrosion resistance and wear resistance. It is compatible with most ferrous and nonferrous metals and does not affect the load capacity of bearings.
Endurakote plating is used in food processing equipment and provides significant advantages in terms of corrosion resistance and wear resistance. It is compatible with most ferrous and nonferrous metals and does not affect the load capacity of bearings.
Overview: This document provides detailed specifications and selection tables for Kaydon's Endura-Slim bearings, focusing on various series including NAA, NB, NC, ND, NF, NG, and NA. These bearings are designed for radial and four-point contact applications, offering dynamic and static load capacities.
Specifications: Each bearing series is listed with dimensions in inches, including bore, outside diameter, and land diameters (L1 and L2). Capacities are provided in pounds for dynamic and static loads, with approximate weights in pounds.
Key Features: - Type C bearings are open Endurakote-Plated, designed for radial contact. - Type X bearings are four-point contact, suitable for applications involving multiple loads. - Snap-over separators and ball sizes are specified for each type, with chamfered bearing corners.
Capacities and Ratings: - Dynamic capacities are based on 1 million revolutions of L10 life. - Static capacities are non-brinell limits, requiring rigid support from the shaft and housing. - ISO radial ratings are calculated per ISO 281:1990 for comparison purposes.
Selection Tables: Detailed tables provide bearing numbers, dimensions, capacities, and weights for each series. The document emphasizes that capacities listed are not simultaneous and advises consulting Kaydon product engineering for hybrid series bearings.
Recommendations: For combined loading, users should refer to the discussion on Bearing Selection and Load Analysis. The document also highlights the importance of considering the maximum shaft or housing fillet radius (F) that the bearing corners will clear.
Overview: This document provides detailed specifications and guidelines for selecting and using Kaydon Reali-Slim Bearings, focusing on precision tolerances, recommended fits, and material options, particularly stainless steel bearings.
Specifications: The document includes extensive tables listing bearing sizes, diameters, radial and axial runout, and diametral clearance before installation. It specifies nominal dimensions for bearing bore, outer diameter, shaft diameter, and housing bore, with tolerances for different bearing types (C, X, A) and mounting configurations (DF, DB).
Material and Design Considerations: Kaydon offers Reali-Slim bearings in AISI 440C stainless steel for applications requiring high precision and corrosion resistance. These bearings are suitable for environments with corrosive chemicals or where ultra-clean, preservative-free bearings are needed. The document highlights the use of stainless steel or ceramic balls and brass or non-metallic separators.
Performance and Tolerances: The document outlines total width and race width tolerances for duplexed and single bearings, respectively. It emphasizes that diametral clearance can vary widely based on bearing, housing, and shaft tolerances, and provides guidance on adjusting shaft and housing diameters based on various factors like orientation, temperature, and speed.
Applications and Recommendations: The document advises contacting Kaydon for design assistance when non-standard diametral clearances or specific performance characteristics are required. It also notes the availability of sealed Reali-Slim bearings in stainless steel for additional protection.
Conclusion: Kaydon Reali-Slim Bearings are designed for precision and durability in challenging environments, with a range of options to suit specific application needs. The document serves as a comprehensive guide for selecting the appropriate bearing type and configuration.
Overview: The document provides detailed specifications and selection tables for various series of Kaydon bearings, focusing on Type A and Type C stainless steel open Reali-Slim bearings. These bearings are designed for specific applications involving radial and thrust loads.
Specifications: The bearings are categorized into different series (SB, SC, SD, SF, SG, SAA, SA) with specific dimensions, load capacities, and weights. Each series is tailored for particular applications, with variations in bore size, outside diameter, and load capacities.
Key Features: - Bearings are designed to handle radial and single-direction thrust loads. - Snap-over assembly allows for a one-piece circular pocket ring separator and greater ball complement. - Bearings require thrust application to establish contact angle. - Matched sets and spacers are available for precision applications.
Load Capacities: The document lists dynamic and static load capacities for each bearing type, based on ISO 281:1990 standards. Dynamic capacities are based on 1 million revolutions of L10 life, while static capacities are non-brinell limits.
Design Considerations: - Bearings have chamfered corners to clear maximum shaft or housing fillet radius. - Circular pocket separators are used with varying ball sizes (3/32", 1/8", 5/32", etc.).
Selection Tables: Detailed tables provide dimensions, load capacities, and approximate weights for each bearing type, facilitating the selection process based on specific application requirements.
Recommendations: For applications requiring extra precision, it is recommended to use matched sets and spacers. For combined loading scenarios, refer to the Bearing Selection and Load Analysis discussion.
Overview: This document provides detailed specifications for various series of KAYDON bearings, including dimensions, capacities, and weights. The bearings are categorized into different series such as SB, SC, SD, SG, SF, SAA, and SA, each with specific characteristics and applications.
Specifications: The document lists the dimensions in inches for each bearing, including bore, outside diameter, and land diameters (L1 and L2). It also provides dynamic and static capacities in pounds, which are crucial for understanding the load-bearing capabilities of each bearing.
Dynamic and Static Capacities: Dynamic capacities are based on 1 million revolutions of L10 life, while static capacities are non-brinell limits based on rigid support from the shaft and housing. These capacities are essential for selecting the appropriate bearing for specific applications.
ISO Radial Ratings: The ISO radial ratings are calculated per ISO 281:1990 and are included for comparison purposes. These ratings help in evaluating the performance of the bearings under radial loads.
Design Features: The document mentions specific design features such as snap-over separators and chamfered bearing corners, which are important for the installation and performance of the bearings.
Recommendations: For combined loading scenarios, the document advises consulting the Bearing Selection and Load Analysis section. It also notes that published capacities do not apply to hybrid series bearings P, X, and Y, and recommends contacting Kaydon product engineering for specific values.
Key Data Extraction: The tables provide a comprehensive list of bearings with their respective dimensions, capacities, and weights. This data is crucial for engineers and designers in selecting the right bearing for their applications.
Overview: This document provides detailed specifications for various series of KAYDON bearings, focusing on dimensions, capacities, and weights. It includes information on different types of bearings such as the 20mm, 8mm, and 13mm series, and highlights popular items within these categories.
Specifications:
- Dimensions: The document lists the bore, outside diameter, and land diameters for each bearing type, measured in millimeters.
- Capacities: Dynamic and static capacities are provided in Newtons, with notes on their application and limitations. Dynamic capacities are based on 1 million revolutions of L10 life, while static capacities are non-brinell limits.
- Weight: Approximate weights are given in kilograms for each bearing type.
Procedures and Standards:
- Load Analysis: The document advises on bearing selection and load analysis, noting that capacities listed are not simultaneous and require further discussion for combined loading.
- ISO Ratings: ISO radial ratings are calculated per ISO 281:1990 and are included for comparison purposes.
Recommendations:
- For hybrid series bearings (P, X, and Y), contact Kaydon product engineering for specific capacity values.
- Consider the maximum shaft or housing fillet radius (F) that the bearing corners will clear.
Key Data from Tables:
- The tables provide a comprehensive list of bearing numbers, dimensions, capacities, and weights for each series.
- Popular items are marked with a special symbol for easy identification.
Additional Notes:
- Angular contact and Conrad assembly types are mentioned, with specific details on ball sizes and separator types.
- Torque figures and limiting speeds are provided for double-sealed bearings.
Overview: The document provides detailed specifications and guidelines for Kaydon's Reali-Slim MM metric series bearings, focusing on four-point contact ball bearings. It includes selection tables, precision tolerances, recommended fits, and additional features of the BB Series bearings.
Specifications: The document lists various bearing models with their dimensions, dynamic and static capacities, and approximate weights. It highlights that dynamic capacities are based on 1 million revolutions of L10 life, and static capacities are non-brinell limits based on rigid support from the shaft and housing.
Procedures and Recommendations: The document advises on bearing selection and load analysis, noting that capacities listed are not simultaneous. It recommends contacting Kaydon product engineering for hybrid series bearings P, X, and Y values. It also provides guidelines for precision tolerances and recommended fits for different bearing sizes.
Norms and Standards: The document specifies Kaydon Class 1 tolerances for Type A, C, and X bearings, detailing radial and axial runout, shaft and housing diameters, and diametral clearance before installation. It emphasizes that listed dimensions are for steel supports with standard bearing diametral clearance.
Additional Features: The BB Series bearings offer design flexibility with features like Endurakote plating for corrosion resistance, custom seals for extreme environments, and a range of lubrication options. The document highlights the advantages of BB Series bearings over standard cross-roller bearings, including higher temperature capability and custom separator options.
Selection Tables: The document includes extensive selection tables for both Reali-Slim and BB Series bearings, detailing model numbers, dimensions, capacities, and tolerances. It also provides information on Ultra-Slim thin section bearings, ideal for applications requiring precise positioning and lightweight designs.
Overview: The document provides detailed specifications and selection criteria for Ultra-Slim bearings and Reali-Slim TT Series turntable bearings, focusing on their design, application, and performance characteristics.
Specifications: Ultra-Slim bearings are made of stainless steel for corrosion resistance and are available in three styles: Angular Contact (Type A), Radial Contact (Type C), and Four-Point Contact (Type X). They are not designed for preloading or continuous rotation due to their thin cross-section. Hybrid bearings with ceramic balls are available for applications requiring lower wear and torque.
Part Number Identification: The part number code for Ultra-Slim bearings includes positions for material, bore size, width, bearing type, separator, precision, and internal fit. For example, 'S11003AS0' indicates specific material, dimensions, and type.
Performance Considerations: Ultra-Slim bearings are suitable for light to medium duty applications with slow or intermittent rotation. They are designed to save weight and space, assuming light construction of the shaft and housing. The document emphasizes the importance of testing for non-uniform shaft and housing distortions, which can lead to increased stress and potential failure.
Selection Tables: Detailed tables provide dimensions, capacities, and mass for different bearing types and sizes. The tables include dynamic and static capacities, loading limits, and recommended fits for various applications.
Reali-Slim TT Series: These are small-scale, thin-section turntable bearings designed for applications like robotics and radar antennae. They offer advantages such as reduced size, increased design flexibility, and the ability to handle radial, axial, and moment loads simultaneously. The series can be customized with different preload or clearance options and are designed to withstand harsh environments.
Conclusion: The document provides comprehensive data for selecting and applying Ultra-Slim and Reali-Slim TT Series bearings, emphasizing their suitability for specific applications and the importance of considering shaft and housing rigidity to optimize performance.
Internally Geared Bearings: The document discusses the design features of custom Reali-Slim TT Series thin section bearings, which have a four-point contact ball radial design. These bearings are prelubricated, ready for use, and can handle radial, axial, and moment loads. They are available with optional internal or external spur gears for easy drive setup, or in non-geared designs. The geared options have a 64 diametral pitch with a 20° pressure angle, providing low-backlash service. Built-in seals are made of steel-reinforced nitrile rubber, and mounting holes are sized for #4-40 UNC fasteners.
Bearing Selection: The document outlines different types of bearings, including Type C (Radial Contact), Type A (Angular Contact), and Type X (Four-Point Contact). Each type has specific design features and assembly methods. Type C bearings are designed for radial loads but can handle some axial loads. Type A bearings have a 30° contact angle for better axial load resistance and are typically mounted in pairs. Type X bearings have a unique 'Gothic Arch' configuration, allowing them to handle radial, thrust, and moment loads simultaneously.
Applications Engineering: The document provides guidance on bearing selection, capacity, life, and load analysis. It emphasizes the importance of considering realistic assumptions for thin section bearings, as outlined in Kaydon's white paper. The document also discusses the use of duplexed bearings for increased capacity and rigidity, and the importance of preload in bearing assemblies.
Specifications and Capacities:
The document discusses the specifications of four-point contact (Type X) bearings, highlighting an increase in radial capacity compared to radial (Type C) bearings. This is due to the distribution of ball loads over two lines of contact, resulting in lower contact stress and longer life.
The document discusses the specifications of four-point contact (Type X) bearings, highlighting an increase in radial capacity compared to radial (Type C) bearings. This is due to the distribution of ball loads over two lines of contact, resulting in lower contact stress and longer life.
Life and Load Analysis:
The dynamic capacity values are based on 1,000,000 revolutions L10 fatigue life, which is the industry standard. It is noted that applying loads equal to dynamic capacities in actual applications is not advisable as it may not yield acceptable life. The L10 life is the life that 90% of bearings can achieve before material fatigue appears, while L50 or median life is approximately five times the L10 life.
The dynamic capacity values are based on 1,000,000 revolutions L10 fatigue life, which is the industry standard. It is noted that applying loads equal to dynamic capacities in actual applications is not advisable as it may not yield acceptable life. The L10 life is the life that 90% of bearings can achieve before material fatigue appears, while L50 or median life is approximately five times the L10 life.
Static load capacities depend on the support provided by the shaft and housing. The document provides equations for estimating bearing life based on load and speed, and advises consulting Kaydon Engineering for complex load cases.
Load Analysis Methodology:
Previous methods of load analysis had limitations, such as assuming zero for one reaction and not accounting for internal bearing fitup. Modern methods use computers to determine individual ball loads, allowing for more accurate life and safety factor calculations.
Previous methods of load analysis had limitations, such as assuming zero for one reaction and not accounting for internal bearing fitup. Modern methods use computers to determine individual ball loads, allowing for more accurate life and safety factor calculations.
Primary Loading Considerations:
For radial loading, larger clearances result in fewer balls carrying the load, reducing dynamic life. For axial and moment loading, larger clearances allow a higher contact angle, but may cause issues if the contact area spills over the race edge.
For radial loading, larger clearances result in fewer balls carrying the load, reducing dynamic life. For axial and moment loading, larger clearances allow a higher contact angle, but may cause issues if the contact area spills over the race edge.
Separator Types and Performance:
The document outlines various separator types used in Reali-Slim bearings, each with specific design features and material considerations. The primary function of a separator is to space rolling elements uniformly to prevent contact and abrasion, which affects life and torque characteristics.
The document outlines various separator types used in Reali-Slim bearings, each with specific design features and material considerations. The primary function of a separator is to space rolling elements uniformly to prevent contact and abrasion, which affects life and torque characteristics.
Different materials are available for separators, including stainless steel and non-metallics like phenolic laminate, PTFE, and PEEK, to suit various operating conditions.
Specifications and Applications:
1. Phenolic laminate is used for lightweight and lubricant absorption applications.
2. The 'snap-over' non-metallic separator is ideal for high-speed applications and small cross-section bearings.
3. Correct bearing orientation is crucial, especially when the bearing axis is within 45° of vertical.
1. Phenolic laminate is used for lightweight and lubricant absorption applications.
2. The 'snap-over' non-metallic separator is ideal for high-speed applications and small cross-section bearings.
3. Correct bearing orientation is crucial, especially when the bearing axis is within 45° of vertical.
Separator Types:
1. Continuous Ring Circular Separators: Used in Type A bearings, allowing more balls than Conrad bearing Types C and X.
2. Riveted Ring Circular Pocket: Suitable for non-standard bearings of Type C or X, recommended for high speeds.
3. Segmental Separators: Useful for high-temperature applications and variable loading conditions.
4. Formed Wire Separator: Maximizes ball capacity, suitable for Type A bearings.
5. Toroid Separators, PTFE Spacer Slugs, Spacer Balls, Helical Spring Separators: Used for critical positioning applications with low speeds and light loads.
1. Continuous Ring Circular Separators: Used in Type A bearings, allowing more balls than Conrad bearing Types C and X.
2. Riveted Ring Circular Pocket: Suitable for non-standard bearings of Type C or X, recommended for high speeds.
3. Segmental Separators: Useful for high-temperature applications and variable loading conditions.
4. Formed Wire Separator: Maximizes ball capacity, suitable for Type A bearings.
5. Toroid Separators, PTFE Spacer Slugs, Spacer Balls, Helical Spring Separators: Used for critical positioning applications with low speeds and light loads.
Limiting Speeds:
1. Factors affecting speed include bearing diameter, type, internal configuration, and lubrication.
2. Maximum safe operating speeds are empirical and depend on various factors.
3. Special attention to lubrication and heat is necessary for speeds near or over limits.
1. Factors affecting speed include bearing diameter, type, internal configuration, and lubrication.
2. Maximum safe operating speeds are empirical and depend on various factors.
3. Special attention to lubrication and heat is necessary for speeds near or over limits.
Torque Considerations:
1. Torque is the moment required to turn the rotating race relative to the stationary race.
2. Factors affecting torque include separator drag, lubricant viscosity, and bearing geometry.
3. Cleanliness is crucial for maintaining uniform torque levels.
1. Torque is the moment required to turn the rotating race relative to the stationary race.
2. Factors affecting torque include separator drag, lubricant viscosity, and bearing geometry.
3. Cleanliness is crucial for maintaining uniform torque levels.
Materials:
1. Races and balls are made from AISI 52100.
2. Cage materials include PTFE, Vespel®, and slugs for different separator types.
1. Races and balls are made from AISI 52100.
2. Cage materials include PTFE, Vespel®, and slugs for different separator types.
Figures and Charts:
1. Figures 4-7 to 4-13 provide data on slimness symbols, derating factors, and torque curves.
2. Charts show approximate torque levels and limiting speeds for various bearing types and conditions.
1. Figures 4-7 to 4-13 provide data on slimness symbols, derating factors, and torque curves.
2. Charts show approximate torque levels and limiting speeds for various bearing types and conditions.
Introduction
Reali-Slim bearings are crucial in applications where the position of a rotating part relative to a stationary structure is critical. The document discusses the displacement of the axis of rotation, which can occur radially, axially, and angularly, and the factors contributing to these deviations, such as bearing diametral clearance and elastic deflection.
Reali-Slim bearings are crucial in applications where the position of a rotating part relative to a stationary structure is critical. The document discusses the displacement of the axis of rotation, which can occur radially, axially, and angularly, and the factors contributing to these deviations, such as bearing diametral clearance and elastic deflection.
Specifications and Equations
The document provides equations to determine displacement, involving variables like radial translation (RT), axial translation (AT), and angular rotation (AR). These calculations are essential for applications where radial, axial, or moment loads are applied.
The document provides equations to determine displacement, involving variables like radial translation (RT), axial translation (AT), and angular rotation (AR). These calculations are essential for applications where radial, axial, or moment loads are applied.
Reali-Design Software
The Reali-Design software aids in selecting the appropriate Reali-Slim bearing. It allows users to input key parameters and provides performance graphs for factors like starting torque, radial deflection, and axial deflection. The software is user-friendly and available for free download.
The Reali-Design software aids in selecting the appropriate Reali-Slim bearing. It allows users to input key parameters and provides performance graphs for factors like starting torque, radial deflection, and axial deflection. The software is user-friendly and available for free download.
Mounting and Installation
Proper mounting of Reali-Slim bearings is essential due to their thin cross-section. The document outlines procedures for mounting different types of bearings, such as radial (Type C), four-point contact (Type X), and angular contact (Type A) bearings. It emphasizes the importance of correct fits and preload settings to ensure optimal performance.
Proper mounting of Reali-Slim bearings is essential due to their thin cross-section. The document outlines procedures for mounting different types of bearings, such as radial (Type C), four-point contact (Type X), and angular contact (Type A) bearings. It emphasizes the importance of correct fits and preload settings to ensure optimal performance.
Figures and Graphs
The document includes figures illustrating the relationship between axial and diametral clearance and the recommended mounting configurations for different bearing types. These visual aids help in understanding the installation and performance characteristics of the bearings.
The document includes figures illustrating the relationship between axial and diametral clearance and the recommended mounting configurations for different bearing types. These visual aids help in understanding the installation and performance characteristics of the bearings.
Conclusion
Reali-Slim bearings require careful consideration of mounting, clearance, and load conditions to function effectively. The Reali-Design software simplifies the selection process, providing engineers with the necessary tools to optimize bearing performance.
Reali-Slim bearings require careful consideration of mounting, clearance, and load conditions to function effectively. The Reali-Design software simplifies the selection process, providing engineers with the necessary tools to optimize bearing performance.
Specifications and Installation:
Angular contact bearings in a duplex set should have their 'V' marks aligned during installation to minimize runout. The flatness and roundness tolerances of the shaft and housing are crucial for the performance of Reali-Slim thin section ball bearings. Proper chamfering and interference fitting techniques are recommended to ensure ease of assembly and avoid damage.
Angular contact bearings in a duplex set should have their 'V' marks aligned during installation to minimize runout. The flatness and roundness tolerances of the shaft and housing are crucial for the performance of Reali-Slim thin section ball bearings. Proper chamfering and interference fitting techniques are recommended to ensure ease of assembly and avoid damage.
Preload and Clamping:
The preload of bearings affects deflection, stiffness, and friction torque. Kaydon's software can help calculate the optimal preload. Face clamps are recommended for securing bearings, and a 'star' pattern should be used for tightening fasteners to ensure even distribution of clamping force.
The preload of bearings affects deflection, stiffness, and friction torque. Kaydon's software can help calculate the optimal preload. Face clamps are recommended for securing bearings, and a 'star' pattern should be used for tightening fasteners to ensure even distribution of clamping force.
Lubrication:
Bearings should be cleaned and lubricated with suitable oil or grease before installation. The choice of lubricant depends on operating conditions such as speed, load, and temperature. Excessive lubrication can lead to higher operating temperatures and early fatigue.
Bearings should be cleaned and lubricated with suitable oil or grease before installation. The choice of lubricant depends on operating conditions such as speed, load, and temperature. Excessive lubrication can lead to higher operating temperatures and early fatigue.
Inspection and Maintenance:
Reali-Slim bearings require special inspection techniques due to their unique proportions. Proper installation in a clean environment is essential for optimal performance. Bearings should not be used as gauges during machining to prevent damage.
Reali-Slim bearings require special inspection techniques due to their unique proportions. Proper installation in a clean environment is essential for optimal performance. Bearings should not be used as gauges during machining to prevent damage.
Temperature and Lubrication:
Different lubricants are recommended based on temperature ranges and application requirements. Factory-lubricated bearings have a shelf life of two years, and maintenance schedules should ensure protection against contamination and adequate lubrication.
Different lubricants are recommended based on temperature ranges and application requirements. Factory-lubricated bearings have a shelf life of two years, and maintenance schedules should ensure protection against contamination and adequate lubrication.
Additional Products:
Kaydon offers Reali-Slim bearings with features for extreme environments, including stainless steel options for high precision and corrosion resistance, and hybrid bearings for applications with marginal lubrication.
Kaydon offers Reali-Slim bearings with features for extreme environments, including stainless steel options for high precision and corrosion resistance, and hybrid bearings for applications with marginal lubrication.
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Catalog excerpts
Engineering and selection guide Kaydon bearing solutions Precision Reali-Slim® thin section bearings (replaces Kaydon Catalog 300)
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Many years ago, Kaydon engineers trying to help designers fit assemblies into smaller spaces had an idea: what if the bearing cross-section didn't increase as the bore size got bigger? This led them to develop new bearings with a cross-section that remained constant: Reali-Slim thin section bearings. 85 percent. Such savings typically have a ripple effect, and have been known to eliminate enough material and/or components to reduce system cost by 40 percent. Despite their slim profile, Reali-Slim bearings have enough load capacity to handle a wide range of applications. A few appear here; for...
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Table of contents Introduction Reali-Slim part number identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Section 1 – An introduction to Reali-Slim thin section bearings . . . . . . . . . . . . . . . . . . . . 7 Product line overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Examples of design efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Bearing load scenarios . . . . . . . . . . ....
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Position 2 - Series standard cross section Races/Balls D AISI 52100 Steel L AISI 52100 Steel, AISI 440C stainless steel balls N AISI 52100 Steel, AISI 440C stainless steel balls P AISI 17-4PH Steel Ceramic Balls (see section 6) Q AISI 52100 Steel (see section 6) Seals, Shields One shield Two seals and Endurakote® plating Endurakote plating and No seals Open bearings W AISI 440C Stainless Steel X AISI 52100 Steel Ceramic Balls (see section 6) Y AISI440C Stainless Steel Ceramic Balls (see section 6) Extended width Extra-extended width * Smaller section applies when position 3 is alphabetic—see...
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Position 3, 4 and 5 - Size (bearing bore) Numeric Characters - Nominal bearing bore in inches multiplied by ten Alphabetic Characters - “A” In Position 3 in combination with “A” in Position 2 denotes .187 x .187 Series “A” In Position 3 in combination with “H” in Position 2 denotes .187 x .250 Series Examples - 040 = 4.0" Bore, 120 = 12.0" Bore, 400 = 40.0" Bore “10” following “AA” in Positions 2 & 3 = .187 x .187 Series with 1.0" Bore “15” following “HA” in Positions 2 & 3 = .187 x .250 Series with 1.5" Bore Position 6 - Bearing type Q PEEK, one-piece molded ring with circular pockets - A R...
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Kaydon makes it easy to design with Reali-Slim bearing ® As comprehensive as each new edition of this catalog is, it’s just one of many tools developed by Kaydon bearings to help engineers evaluate thin section bearings for their applications. At our website www.kaydonbearings.com, for example, you’ll find CAD downloads, an interactive bearing selector and advanced design software to make your job much easier. CAD downloads CAD drawings are available for download in 38 different formats (e.g., AutoCAD, DXF, SolidWorks). Simply select the type of bearing you want from the drop-down menu and go...
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Search by size specify inch bearings, metric bearings, or both, then fill in one or all of the spaces to search by minimum and/or maximum dimensions. Bearing series O inch bearings (inches) ® Both inch and metric bearings Show results in ® inches O mm Interactive bearing selector Kaydon's interactive bearing selector lets you search our online catalog and download 2D or 3D drawings to simplify the selection process . Search by part number (even if it's incomplete) or by bore size, outside diameter, and/or width minimums and maximums... in inches or millimeters . Reali-Design® and Reali-Design...
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The design and application information contained in this catalog is for illustration only. Responsibility for the application of the products contained in this catalog rests solely with the equipment designer or user. In spite of our best efforts, the material contained in this catalog may contain inaccuracies and typographical errors.
Open the catalog to page 8
Section 1 An introduction to Reali-Slim thin section bearings Product line overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Examples of design efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Bearing load scenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Product availability chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
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Product line overview The inch family of Reali-Slim thin section bearings includes seven open series (Figure 1-2) and five sealed series (Figure 1-3), ranging in bore diameters from 1.000 inch to 40.000 inches. Series range from .187 x .187 inch to 1.000 x 1.000 inch in cross-section. Open bearings are available from stock in three configurations (Types A, C & X). Stock sealed bearings are available in Types C & X only. We can provide internal fit up, lubricants, separators and other features to meet the most demanding specifications. To obtain corrosion resistance consider using the Kaydon stainless...
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Product line overview For all diameters of this rotary table your bearing envelope stays the same. Additional advantages in application design made possible by Reali-Slim bearings can be seen by referring to Figures 1-6, 1-7, and 1-8. A large bore, small cross-section Reali-Slim bearing permits the use of a large diameter hollow shaft (Figure 1-7) in place of a smaller diameter solid shaft (Figure 1-6), king-post design. Components such as air and hydraulic lines or electrical wiring and slip rings can then be accommodated within the hollow shaft, resulting in a neater, more efficient design....
Open the catalog to page 11Archived catalogs
Bearing applications guide8 Pages
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.