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THRUST BEARING CATALOG INDEXTIMKEN OVERVIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 PRODUCTS AND SERVICES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 HOW TO USE THIS CATALOG. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 SHELF LIFE AND STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 WARNINGS AND CAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12ENGINEERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Thrust Bearing Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Bearing Reactions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Bearing Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 System Life and Weighted Average Load and Life . . . . . . . . . . . 28 Bearing Tolerances, Metric and Inch Systems . . . . . . . . . . . . . . 29 Mounting Design, Fitting Practice and Setting. . . . . . . . . . . . . . . 37 Bearing Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55PRODUCT DATA TABLES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Angular Contact Thrust Ball Bearings. . . . . . . . . . . . . . . . . . . . . . 69 Thrust Cylindrical Roller Bearings . . . . . . . . . . . . . . . . . . . . . . . . . 75 Thrust Spherical Roller Bearings. . . . . . . . . . . . . . . . . . . . . . . . . . 85 Thrust Tapered Roller Bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 TIMKEN THRUST BEARING CATALOG ® 1 TIMKENOVERVIEW 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 and high-moisture applications, or other products and services for your applications
When you choose Timken, you receive more than high-quality products and services: you gain a worldwide team of highly trained and experienced Timken people committed to working collaboratively with you to improve your business
Globally, our 17,000 people provide reliable answers for a wide range of operations in manufacturing, mining, medical equipment, aerospace, transportation, oil and gas – and other diverse industries
2 TIMKEN THRUST BEARING CATALOG ® TIMKEN OVERVIEWINCREASE YOUR EQUIPMENTUPTIMEIn addition to high-quality bearings and mechanical powertransmission components, we provide valuable integratedproducts and services. For example, we offer repair servicesand monitoring equipment that can alert you to problemsbefore they impact your uptime
Additionally, we offer a broad selection of seals, premiumlubricants, lubricators, couplings and chain to keep youroperations moving smoothly
Our 12 technology centers in the United States, Europe andAsia help pioneer tomorrow’s innovations with extensivebasic and applied scientific research programs. Throughinternal development and strategic acquisition of innovativecompanies, we continue to expand our portfolio of highlyengineered bearings, power transmission products andadvanced services
TIMKEN THRUST BEARING CATALOG ® 3 TIMKENOVERVIEWINDUSTRIAL COREINNOVATOR CAPABILITIESToday, manufacturing and Timken has evolved fromprocessing equipment handle its early roots as a bearingheavier loads, faster speeds and producer to a supplier offeringgreater expectations than ever much more, including friction-before. As finished-product quality management and power-requirements increase, producers transmission solutions that addcontinue to place a very high premium value throughout the completeon equipment uptime and performance. life cycle of a system. Our material enhancements improve bearing life and canTimken has more than a century of experience protect against debris and corrosion – two challengesdeveloping bearings and related solutions that help equipment encountered frequently in various industrial applications
run more efficiently in a wide range of applications. As the Our precision manufacturing capabilities and commitment toleader in friction-management and power-transmission quality ensure global consistency in design and manufacturingsolutions for industrial markets, Timken helps operators at every Timken facility. A global distribution network providesimprove their equipment’s performance and uptime. We our customers with easy access to Timken products andaccomplish this by providing custom solutions – from bearings services throughout the world
that stand-up to the harshest environments to conditionmonitoring that minimizes maintenance costs and improves We leverage these core capabilities as we work with originalplant productivity. equipment manufacturers (OEM) and designers to integrate our technologies into equipment so that end users can enjoyINNOVATION AND CUSTOMER the performance benefits of Timken products from the first day of operation. OEMs depend on Timken for our engineeringSUPPORT expertise, manufacturing capabilities and emphasis on reliableTimken operates technology centers around the world performance
dedicated to developing innovative concepts and products thathelp you operate more efficiently. Our technical leadershipand customer support reach far beyond our products. Timkencustomers have access to sales and service engineeringsupport at their plants, and options for additional support fromapplication engineers who specialize in a variety of industrialapplications
4 TIMKEN THRUST BEARING CATALOG ® TIMKEN PRODUCTS AND SERVICESPRODUCTS AND SERVICES capacity and advanced geometry that reduces friction and heat generation. These bearings are available in a range ofWe offer equipment builders and operators one of the most dimensional stability configurations to suit elevatedextensive friction-management product and service portfolios operating temperatures
in the industry
•• Thrust roller bearings – Thrust roller bearings for rollingWe also strictly adhere to the Timken Quality Management mill applications are available in cylindrical, spherical andSystem in every plant worldwide, so each bearing product tapered designs. Thrust bearings are ideal for applicationsmeets the same high quality standards – no matter where in experiencing heavy axial loads, such as mill stands, screw-the world it is manufactured. down systems and piercing mills
BEARINGSTimken provides a broad range of bearing designs andconfigurations for use in steelmaking vessels, castersegments, work rolls, backup rolls, screwdown systems,mill drives, pinion stands, coilers, table rolls, andauxiliary equipment. Bearing types include:•• Tapered roller bearings – Tapered roller bear- ings are uniquely designed to manage both thrust and radial loads and are available in single- and multi-row designs with a wide range of assembly options. Our extensive offering of tapered roller bearing combi- nations provides equipment builders and operators simple, reliable and less costly design solutions
•• Cylindrical roller bearings – This design generally offers the highest possible radi- al load capacity for a given size compared to other roller bearing types. Single-row and double-row cylindrical roller bearings are ideal for many mill stand, gear drive and other auxiliary equipment applications, while four-row cylindrical roller bearings are used in roll neck applications. Timken offers both single and multi-row cylindrical roller bearing. Custom designs are available upon request for specific applications
•• Spherical roller bearings – Spherical roller bearings offer high radial and moderate thrust capacity together with maximum static and dynamic misalignment capability
Timken® spherical roller bearings provide high-static load TIMKEN THRUST BEARING CATALOG ® 5 TIMKENPRODUCTS AND SERVICES•• Ball bearings - Ball bearings are used extensively in HIGH-PERFORMANCE BEARING auxiliary applications that have light loads and/or high- speed conditions. Timken offers a range of radial, thrust and SOLUTIONS angular contact ball bearings in both metric and inch sizes. Timken provides a variety of high-performance bearing Please contact your Timken engineer for detailed informa- solutions, including Timken® AquaSpexx®, DuraSpexx® and tion on these product ranges. thin dense chrome bearings for corrosion protection. Our debris-resistant bearings are ideal for contaminated and/or•• Housed units - Timken® spherical roller bearing solid- marginal lubrication conditions
block housed units process a unique cast-steel design that handles demanding conditions in metal industry applica- We also provide customized bearing solutions such as special tions. These solid-block housed units come in several styles race profiles to meet special application requirements
and five advanced locking configurations. Timken spherical In addition to component geometry and metallurgy, we find roller bearing solid-block housed units are designed for many ways to enhance bearing performance by applying challenging circumstances. A full line of primary seals, unique surface finishes and special coatings on rollers, covers and housings is available to find the right roller raceways and other functional surfaces. Engineered surfaces housed unit to fit your application. In case of high thrust and topographical modifications reduce surface roughness loads, in excess of the spherical roller bearing carrying to lower levels rather than what can be achieved through capabilities, the Timken® Type E is your recommended conventional grinding and honing methods. We also offer solution. Through our unique product design, we have proprietary coatings that can create a surface up to four optimized the core components so their performance is times harder than steel with twice the elasticity. For more elevated to a level we consider the next generation of information on Timken high-performance bearings and roller housed units. Application testing has shown that our engineered surfaces, contact a Timken sales representative
Type E bearing yields a design life that is 55 percent higher than current industry leading designs which utilize standard Timken bearings. Timken also provides a broad range of SNT metric plummer blocks and the SAF inch pillow block line which include a wide range of sizes, housing designs, seals and accessories. The standard line of Timken split- block housings is constructed of cast iron and designed to protect bearings
6 TIMKEN THRUST BEARING CATALOG ® TIMKEN PRODUCTS AND SERVICESPOWER TRANSMISSIONCOMPONENTS AND SYSTEMSTimken offers an expanding range of power transmissioncomponents including seals, couplings and engineered chain
Extreme temperatures and high contamination levels candisable your equipment and significantly lower productivity. LUBRICATIONTimken develops seals using advanced material and process Timken® lubricants reduce friction, prevent wear andsolutions that help protect machinery and minimize plant protect bearing surfaces from corrosion. We offer a widedowntime. We offer a comprehensive line of large-bore oil and selection of lubricants, including Timken® Mill Grease, whichgrease seals, and metallic and non-metallic bearing isolators. we formulated to perform in the difficult roll neck bearingTimken® Quick-Flex® couplings are highly durable, yet need environment. Timken® single- and multi-point lubricators andminimal maintenance. They are easy to install and require no lubrication delivery devices help maintenancelubrication. The couplings are designed to connect motors professionals simplify theirand gearboxes with other moving equipment with capacity lubrication practices,to transmit the same or more torque than a gear coupling in saving time andthe same dimensions. The Quick-Flex coupling's innovative money
design utilizes an advanced elastomeric element to transmitthe torque and therefore eliminates any interference betweencoupling hubs which can damage equipment
Timken manufactures precision roller chains that are designedto meet demanding steel industry applications. We buildchains to precise specifications for strength and maximum CONDITION MONITORING wear life. The offering includes a Powerful diagnostic tools from Timken are designed to complete line of roller chains, detect potential bearing failure before it occurs. A variety of attachment chains and handheld devices and online options – including our ultra- engineered conveyor accurate Online Intelligence System – lets you monitor bearing chains. condition, lubrication quality and machine vibration (either periodically or continuously) for increased productivity, safety and peace of mind
TIMKEN THRUST BEARING CATALOG ® 7 TIMKENPRODUCTS AND SERVICES TRAINING We offer industry-specific training programs designed for plant professionals, as well as on-site customized training to meet your specific needs. Our training programs are available at select locations around the world and cover every phase of bearing performance. Class time is balanced with extensive hands-on training and tours of Timken facilities
MAINTENANCE TOOLSTimken® maintenance tools may extend bearing life byfacilitating proper installation, removal and service. They alsohelp simplify maintenance practices. We provide inductionheaters, impact fitting tools, and hydraulic and mechanicalpullers
SERVICESUsed bearings and related components often can be returnedto their original specifications with less time and costs thanpurchasing new. We offer complete remanufacture andreconditioning services for many components, includingbearings, chocks, housings, rolls and more
Our gearbox repair services are globally recognized for powertransmission solutions in heavy industrial markets, repairingvirtually any large gearbox make or model, with on-siteemergency breakdown service available if needed
Timken offers a full range of maintenance and reconditioningservices through our remanufacturing and repair operations
Using these services can lead to improved plant efficiency andreduced overall production costs
8 TIMKEN THRUST BEARING CATALOG ® TIMKEN HOW TO USE THIS CATALOGHOW TO USE THIS CATALOGWe designed this catalog to help you find the Timken bearingsbest suited to your equipment needs and specifications
The product tables list many of the bearing types that arespecifically used in thrust positions. For other bearingtypes, please refer to the respective Timken product catalogreference
Timken offers an extensive range of bearings and accessoriesin both imperial and metric sizes. For your convenience, sizeranges are indicated in millimeters and inches. Contact yourTimken engineer to learn more about our complete line for thespecial needs of your application
This publication contains dimensions, tolerances and loadratings, as well as engineering sections describing mountingand fitting practices for shafts and housings, internalclearances, materials and other bearing features. It providesvaluable assistance in the initial consideration of the typeand characteristics of the bearings that may best suit yourparticular needs
ISO and ANSI/ABMA, as used in this publication, refer tothe International Organization for Standardization and theAmerican National Standards Institute/American BearingManufacturers Association
TIMKEN THRUST BEARING CATALOG ® 9
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 functional surfaces. Engineered surfaces and topographical modifications reduce surface roughness
PRODUCTS AND SERVICES TIMKEN 6 TIMKEN® THRUST BEARING CATALOG • Ball bearings - Ball bearings are used extensively in auxiliary applications that have light loads and/or high-speed conditions. Timken offers a range of radial, thrust and
Thrust Bearings. When axial loads combine with high speeds, heavy loads or other challenging conditions, Timken thrust bearings deliver optimum performance. We offer a comprehensive range of thrust bearings in standard as well as custom designs, meeting stringent specifications required for nearly any application. Home. Products.
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The basic static radial load rating and thrust load rating for Timken bearings are based on a maximum contact stress within a non-rotating bearing of 4000 MPa (580 ksi) for roller bearings and 4200 MPa (609 ksi) for ball bearings, at the center of contact on the most heavily loaded rolling element. The 4000 MPa (580 ksi) or 4200 MPa (609 ksi ...
Thrust Bearings. Timken thrust bearings are designed specifically to manage thrust loads in a wide variety of industrial and automotive applications. We manufacture five basic designs of thrust bearings that include ball, crossed roller, cylindrical roller, tapered roller and spherical roller designs to meet full range industry applications.
TIMKEN PRODUCTS AND SERVICES •• Ball bearings - Ball bearings are used extensively in auxiliary applications that have light loads and/or highspeed conditions. Timken offers a range of radial, thrust and angular contact ball bearings in both metric and inch sizes. Please contact your Timken engineer for detailed information on these product ...
Catalog excerpts. SPHERICAL PLAIN Overview: Timken's spherical plain bearings consist of a spherically ground inner ring housed in a mating outer ring without any rolling elements. Sizes: 12.7 mm - 600 mm bore (0.5 in. - 23.622 in.). Օ Markets: Construction, mining, metals, power generation, oils and gas, aggregate, paper and forest products.
TIMKEN PRODUCTS CATALOG B415 • A BA Spherical Plain Bearings SPHERICAL PLAIN Overview: Timken’s spherical plain bearings consist of a spherically ground inner ring housed in a mating outer ring without any rolling elements. • Sizes: 12.7 mm - 600 mm bore (0.5 in. - 23.622 in.). • Markets: Construction, mining, metals, power generation, oils and gas, ...
High-Load Ultra-Low-FrictionOil-Embedded Thrust Bearings. Handle heavy loads that frequently start and stop along shafts— these bearings contain extra iron and slippery PTFE lubricant. They’re thrust bearings, which means they support loads parallel to the shaft.
TIMKEN PRODUCTS AND SERVICES •• Ball bearings - Ball bearings are used extensively in auxiliary applications that have light loads and/or highspeed conditions. Timken offers a range of radial, thrust and angular contact ball bearings in both metric and inch sizes.
TIMKEN PRODUCTS AND SERVICES •• Ball bearings-Ball bearings are used extensively in auxiliary applications that have light loads and/or highspeed conditions. Timken offers a range of radial, thrust and angular contact ball bearings in both metric and inch sizes. Please contact your Timken engineer for detailed information on these product ranges.
Generally a heavy-duty bearing that can operate at relatively high speeds. Bearing of choice for axial positions in a wide variety of applications including oil well swivels, pulp refiners, extruders and piercing mill thrust blocks. Consists of one thrust tapered race, one flat race, rollers and cage.
Off-apex roller arrangement. These are light-duty thrust bearings which are used extensively in the steering pivot positions of automotive and other industrial applications. Types TTSP, TTSPS and TTSPL are identical except for the cage construction.