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TIMKEN ® SPLIT CYLINDRICAL ROLLER BEARING HOUSED UNIT CATALOG
TIMKEN ® SPLIT CYLINDRICAL ROLLER BEARING HOUSED UNIT CATALOG
The Timken Split Cylindrical Roller Bearing Housed Unit Catalog offers detailed information on high-performance mechanical components aimed at enhancing machinery reliability and performance across various industries. It includes bearings, belts, brakes, clutches, chains, couplings, gears, and related products.
This section provides guidance on selecting the appropriate Timken bearings, including product tables, dimensions, tolerances, load ratings, and engineering sections for mounting and fitting practices.
Guidelines are provided for the shelf life of grease-lubricated bearings, emphasizing proper storage conditions to maximize product value.
The catalog details the anatomy of standard units, technical features, industry applications, and nomenclature, including quick reference tables and series comparisons.
This section covers the selection process, bearing ratings, axial and temperature considerations, support loads, bearing frequencies, and shaft considerations.
Information on sealing arrangements, triple labyrinth housing, seal references, and bearing lubrication is provided to ensure optimal performance and longevity.
Guidelines for assembly, maintenance, screw sizes, key sizes, and torque values are included to facilitate proper installation and upkeep.
Detailed product data tables are provided for light, medium, and heavy series bearings, as well as SAF/SN/SD bearings.
Timken is a global leader in bearings and power transmission systems, known for precise solution design and craftsmanship, emphasizing innovation and customer support.
These bearings are essential for applications with limited access, offering cost-effective solutions by reducing downtime and production losses.
Bearings should be stored in a dry environment with humidity below 60% and free from contaminants. Bearings are shipped with a corrosion-preventive compound, which should be removed if using specialized grease lubrication.
Proper maintenance and handling are crucial. Overheated bearings can ignite explosive atmospheres, so special care is needed in such environments.
The catalog details the anatomy of standard units, technical features like innovative cage clips and sealing options, and industry applications.
Includes detailed engineering specifications, such as bearing types, support types, and series comparisons, along with bearing selection and ratings.
Guidelines include proper alignment, torque values, and avoiding excessive force during installation.
The catalog is intended as a tool for product selection, with performance affected by factors beyond Timken's control.
- Retained-Type Bearings (BR): Integral flanges on the outer race for axial load support.
- Expansion-Type Bearings (BX): Designed for radial loads only, allowing rollers to move freely.
- Pillow Block: Popular mounting method made from high-strength cast iron.
- Flange Units: Used for mounting against horizontal or vertical faces.
- Light Series: Good load and speed capabilities.
- Medium Series: Additional load capacity for heavily loaded applications.
- Dynamic Loading: Considers radial and axial loads independently.
- Static Loading: Important for slow rotations or high shock loads.
Uses ISO 281 for adjusted life based on operational conditions.
Tables provide dynamic, static, and axial load ratings for different series.
Axial load selection is independent of radial load, with specific calculations for effective axial load.
Various sealing solutions are available for different environments, with specific speed, temperature range, and shaft finish requirements.
Detailed tables for light, medium, and heavy series of triple labyrinth housing and seal references.
Outlines the importance of lubrication in preventing metal-to-metal contact, wear, and corrosion.
Detailed procedures for checking shaft dimensions, fitting the inner ring, and assembling the outer race into the housing.
- Use grease with extra pressure additives for optimal axial capacity.
- Ensure correct thickener and viscosity for high-temperature applications.
- The seating groove must be clean and free of hardened grease or corrosion.
- Lightly oil the seating groove and the outer diameter of the outer race halves.
- Retained Bearing: Pre-assemble housing halves, tighten joint screws.
- Expansion Bearing: Align the inner ring centrally with the outer race.
- Slide the pre-assembled bottom half into the support base.
- Align the inner and outer race roller tracks.
- Use the correct hexagon key and torque wrench to tighten clamping ring screws.
Torque values for various screw sizes are provided in tables for light, medium, and heavy series.
- Charge housing halves with the correct amount of grease.
Options for selecting the appropriate split cylindrical bearing housed unit based on application needs.
Includes fields for customer and Timken contact information, application details, and more.
Detailed tables for light series bearing products, including specifications for bearings and housings.
Detailed specifications for light series bearings and housings, categorized by shaft diameter ranges.
Specifications for support units, including dimensions and bolt specifications.
Comprehensive specifications for medium series bearings and housings, covering shaft diameters from 45 mm to 600 mm.
Designed for demanding load conditions, with robust mountings and various sealing solutions.
Offer a simple mounting solution for flat horizontal or vertical faces.
Introduces a new compact split plummer block bearing interchangeable with standard SAF, SN, and SD series.
Focuses on SAFQ two-bolt and four-bolt bearings and housings, covering a range of shaft sizes.
- Shaft Sizes: Bearings for shaft sizes ranging from 1 7/16 inches to 7 15/16 inches.
- Dynamic and Static Ratings: Each bearing size is accompanied by its dynamic and static load ratings.
- Installation: Detailed dimensions for installation, including bolt sizes and configurations.
- Product Data Tables: Comprehensive tables list all relevant data for each bearing size.
- Load Ratings: Emphasizes the importance of selecting bearings based on dynamic and static load ratings.
This catalog serves as a comprehensive guide for selecting and installing Timken's split cylindrical roller bearing housed units, providing all necessary specifications and recommendations to ensure proper application and performance.
Catalog excerpts
7M 09-18 :29 Order No. 10868 | Timken® is a registered trademark of The Timken Company. | All other trademarks are property of their respective owners. | © 2018 The Timken Company | Printed in U.S.A. TIMKEN® SPLIT CYLINDRICAL ROLLER BEARING HOUSED UNIT CATALOG To view more Timken catalogs, go to www.timken.com/catalogs for interactive versions, or to download a catalog app for your smartphone or mobile device scan the QR code or go to timkencatalogs.squawqr.com. TIMKEN® SPLIT CYLINDRICAL ROLLER BEARING HOUSED UNIT 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 high-performance mechanical components, including bearings, belts, brakes, clutches, chain, couplings, gears and related mechanical power transmission products and services.
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ABOUT THE TIMKEN COMPANY As a global leader in bearings and power transmission systems, Timken focuses on precise solution design, materials and craftsmanship to deliver reliable and efficient performance that improves productivity and uptime. Timken offers a full range of bearings, belts, chains, couplings, gears and lubricants, along with rebuild and repair services. Timken (NYSE; TKR; www.timken.com) applies its proven expertise in metallurgy, tribology and mechanical power transmission to create innovative approaches to customers’ complex needs. Global availability of products and engineering...
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TAKING THE INITIATIVE In today's demanding industrial environment, specialist technology is, more than ever, key to improved efficiency, productivity and ultimately profitability. Timken is increasingly seen as a product brand, that routinely challenges technological boundaries Rapid response and flexibility result from a production facility manufacturing not only split cylindrical roller bearing assemblies but also cutting edge products for aerospace and railway. The unique relationship between manufacturer and distributors combined with innovative cellular manufacturing and modular stocking...
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TIMKEN INTRODUCTION ADVANTAGES OF SPLIT CYLINDRICAL ROLLER BEARING HOUSED UNITS Split cylindrical roller bearings are essential in applications involving limited access and are highly cost effective by reducing down time and production losses during change-outs. Split cylindrical roller bearings are completely split to the shaft. Installation and inspection times are therefore dramatically less than for solid bearings. Additionally, the time saved and costs eliminated by not having to remove ancillary equipment results in even higher potential savings. FURTHER SAVINGS Anywhere Timken bearings...
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TABLE 1. SPLIT CYLINDRICAL ROLLER BEARING HOUSED UNIT FEATURES AND BENEFITS 4 TIMKEN® SPLIT CYLINDRICAL ROLLER BEARING HOUSED UNIT CATALOG
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HOWTO USE THIS CATALOG We designed this catalog to help you find the Timken bearings best suited to your equipment needs and specifications . The product tables list split bearing housed units and components . For other bearing types, please refer to the respective Timken product catalog reference . Timken offers an extensive range of bearings and accessories in both imperial and metric sizes . For your convenience, size ranges are indicated in millimeters and inches . Contact your Timken engineer to learn more about our complete line for the special needs of your application . This publication...
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TIMKEN SHELF LIFE AND STORAGE OF GREASE-LUBRICATED BEARINGS AND COMPONENTS SHELF LIFE AND STORAGE OF GREASE-LUBRICATED BEARINGS AND COMPONENTS To help you get the most value from our products, Timken provides guidelines for the shelf life of grease-lubricated ball and roller bearings, components and assemblies. Shelf life information is based on Timken and industry test data and experience. SHELF LIFE Shelf life should be distinguished from lubricated bearing/ component design life as follows: • Shelf life of the grease-lubricated bearing/component represents the period of time prior to use or...
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SHELF LIFE AND STORAGE OF GREASE-LUBRICATED BEARINGS AND COMPONENTS Timken suggests the following storage guidelines for our finished products (bearings, components and assemblies, referred to as "products"): • Unless directed otherwise by Timken, products should be kept in their original packaging until they are ready to be placed into service . • Do not remove or alter any labels or stencil markings on the packaging • Products should be stored in such a way that the packaging is not pierced, crushed or otherwise damaged . • After a product is removed from its packaging, it should be placed...
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WARNINGS A WARNING Failure to observe the following warnings could create a risk of death or serious injury. Proper maintenance and handling practices are critical . Always follow installation instructions and maintain proper lubrication . Overheated bearings can ignite explosive atmospheres . Special care must be taken to properly select, install, maintain, and lubricate housed unit bearings that are used in or near atmospheres that may contain explosive levels of combustible gases or accumulations of dust such as grain, coal, or other combustible materials . Never spin a bearing with compressed...
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ENGINEERING The following topics are covered within this section: Standard Unit Anatomy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Technical Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Industry Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Quick Reference Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Bearing Types. . . ....
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ENGINEERING STANDARD UNIT ANATOMY STANDARD UNIT ANATOMY Outer Race Cage and Rollers Clamp Rings Inner Race Cage Clip Support Base Fig. 1. Standard unit anatomy. TIMKEN® SPLIT CYLINDRICAL ROLLER BEARING HOUSED UNIT CATALOG
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