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The soul of Timken in a spherical roller bearing

TYPICAL applications

Timken high-quality bearings can be put to work in any application where spherical roller bearings can be specified. Some of these applications are:

Gearboxes Casters Aggregates, including shaker screens Heavy stationary industrial conveyor systems Industrial fans

Peak Performance for Spherical Applications Superior quality and performance are standard in every Timken product. Our experience and capabilities in bearing technology, manufacturing, engineering support and distribution are legendary. Now, with the high-performance line of Timken spherical roller bearings, you have more options for meeting the toughest, most demanding applications. From heavy gear and caster applications to the harshest aggregate and conveyor systems, Timken sphericals stand ready to help you operate at higher levels of efficiency and capacity. The result of these innovations is an 18 percent increase in capacity for a 75 percent design life improvement over our previous spherical roller bearing design.

A Quantum Leap in Performance With higher load and speed ratings than previous Timken spherical roller bearings, this next generation achieves higher performance levels with improved surface finishes and innovative features that are designed to lower operating temperatures and increase load-carrying capabilities:

The next-generation of Timken spherical roller bearings, available with either a steel or brass cage, runs cooler with a longer life and greater reliability when compared to samesize competitive bearings.

New cage designs, including a nitrided, stamped steel slotted cage, help provide better purging of contaminants. • Optimized internal geometries provide positive axial roller guidance and improved lubricant distribution. • Circumferential roller guidance generates positive hydrodynamic contact, contributing to better roller/cage interaction.

Quality Solutions As the only premium bearing manufacturer to also make super-clean, high-alloy bearing steels, we understand the critical quality link between materials and product performance.

Average Bearing O.D. Temperature

Cooler than the Competition Lower operating temperatures increase bearing life by increasing lubricant life. A 5°C decrease in operating temperature can translate to 9 percent longer bearing life. In tests, Timken spherical roller bearings ran at consistently lower temperatures than same-size competitive bearings.

100oC (212oF) 95oC (203oF) 90oC (194oF) 85oC (185oF) 80oC (176oF) 75oC (167oF)

91oC (195.8oF) 86 C (186.4oF) o


Competitor A

94oC (201.7oF) 89oC (192.7oF)

Competitor B

Competitor C


Industry-leading Thermal Speed Ratings The design of the next-generation Timken spherical roller bearing places its performance among the industry leaders with a 17 percent increase in average thermal speed rating over the previous Timken product.

We also strictly adhere to the Timken Quality Management System in every plant worldwide, so each bearing product meets the same high performance standards—no matter where in the world it is manufactured. Dependable Service Every Timken spherical roller bearing is backed by the knowledge of our industry-leading experts. They stand ready to assist you with product design, application knowledge and 24/7 field engineering support—anything you need to help improve uptime and maximize equipment performance. On-time Delivery We know short lead times are critical to keep your operations up and running. We stock many Timken spherical roller bearings for immediate shipping.

Timken Spherical Roller Bearings From 25 mm bore to 2,000 mm outside diameter Timken spherical roller bearings feature either stamped steel, window-type cages or precision-machined, roller-riding brass cages. They come in a wide variety of sizes and configurations to meet the requirements of demanding applications. We stock popular part numbers for immediate availability and offer size ranges from 25 mm bore to an outside diameter of 2,000 mm.

Stamped Steel Cage (EJ) • Two-piece, land-riding, window-type cage • Surface hardened for increased strength and reduced wear • Slotted face for more efficient lubrication distribution • Designed for high speeds

Machined Brass Cage (EM or EMB) • EM roller-riding • EMB land-riding • Enhanced roller/cage contact geometry is designed to provide optimum roller guidance and reduced friction • Robust cage bridge is designed to operate in extreme environments SERIES

Bore in mm 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 110 120 130 140 150 160 170 180 190 200 220 240 260












速 Inspired by the industry-leading Timken速 tapered roller bearing, the redesigned Timken spherical roller bearing helps manufacturers and 足end-users build and operate leaner, more reliable equipment, while helping to reduce their operating costs. This power-dense bearing is designed to allow original equipment manufacturers to downsize their designs and improve performance. For operators, the new design can mean less maintenance, while cooler operating temperatures help to lengthen bearing service life.

Timken® Spherical Roller Bearings Modification Codes Timken spherical roller bearings feature specific modifications to meet your application requirements. The table below provides a list of the most popular bearing modifications. Please consult your Timken sales representative for further information and a complete modification list. Timken (1)

SKF (2)

FAG (3)






C2 C3 C4 C5 C6 S1 S2 S3 S4 C02 C04 C08 C083 C084 K K30 W4

C2 C3 C4 C5 C6 S1 S2 S3 S4 T52BE T52BN T52BW C3, T52BW C4, T52BW K K30 J26A

C2 C3 C4 C5 CGxx,SLxx S11

W20 W22 W73 W31 W33 ECDHA3, ECB-


E3 S(a,b)


S2 S3 S4 C02 C04 C08 C08C3 C08C4 K K W4 W6R W20 W22 W25 W31 W33 W40 W40I W40R W40E W45A

S W209 W209B


P5B,P53 P5C,P52 P55 P55,C3 P55,C4 K K30

U22 E4 g g3 g1 g2

VE 553


VA414 (incl W800&W47)

W84 W841 W88 W89 W94 W507 W509 W525

W77 W

T41B (incl W22&W47) H44SA, H40 H40

W26 W507 W509 (W26+W31+W33) W525 (W31+W77)

H40AB J26A S.H40A S.H44S

E5 E4U22, E4P53 E7U22




U15, VS




Timken General Definition Stamped nitrided steel-cage - high-performance One-piece roller-riding, machined-brass cage - high performance One-piece inner ring, piloted, machined-brass cage - high performance Stamped steel cage - high performance One-piece roller-riding, machined-brass cage One-piece inner ring, piloted, machined-brass cage Two-piece inner ring, piloted, machined-brass cage Bearing Radial Internal Clearance (RIC) smaller than normal Bearing Radial Internal Clearance (RIC) greater than normal Bearing Radial Internal Clearance (RIC) smaller than C3 Bearing Radial Internal Clearance (RIC) smaller than C4 Specific RIC designed to bearing size Bearing rings dimensionally stabilized for use at operating temperatures up to 200°C Bearing rings dimensionally stabilized for use at operating temperatures up to 250°C Bearing rings dimensionally stabilized for use at operating temperatures up to 300°C Bearing rings dimensionally stabilized for use at operating temperatures up to 350°C Inner ring with P5 running accuracy Outer ring with P5 running accuracy, W4 (SKF does not include W4) P5 running accuracy (C02+C04) P5 running accuracy (C02+C04), C3 RIC P5 running accuracy (C02+C04), C4 RIC Tapered bore (1:12 on diameter 22,23,30,31,32,33,39 series) Tapered bore (1:30 on diameter 40,41,42 series) Mark high and low points of eccentricity on face of rings Engineered surface thin film coating ES302 on roller contact surfaces Outer ring with lubrication holes Special reduced-OD tolerance on outer rings Outer ring counter-drilled lubrication holes Bearing inspected to certain quality-control requirements Standard lubrication holes and groove in outer ring Bearing made of carburizing grade steel Inner ring made only of carburizing grade steel Roller made only of carburizing grade steel Outer ring made only of carburizing grade steel Tapped lifting holes in face of outer ring to facilitate lifting and handling Inner ring with oversize bore


Outer ring with standard lubrication holes plugged Outer ring with no lubrication hole Special reduced bore tolerance on inner ring Inner ring with lubrication holes and lubrication groove Inner ring lubrication holes W31+W33+W45A W31+W33+W94+W45A (where feasible) W31+W33+W84+W45A (where feasible) Shaker screen modification (W22+W88+Radial internal clearance in upper 2/3 of range specified range) C08+W31+W33+W40I+W40R

Notes: (1) Timken offers differentiated solutions for many applications. This is only a partial list of common modification codes. (2) E suffix for SKF Explorer bearing available in some sizes. (3) E1 suffix for FAG X-life bearing available in some sizes. (4) Standard for all Timken SRBs. Data in this chart has been compiled to make the information as complete as possible. Timken cannot assume any responsibility for errors, omissions or accuracy of the published data. SFK Explorer bearing and FAG X-life bearing are registered trademarks of their respective companies. Timken is a registered trademark of The Timken Company ®

© 2011 The Timken Company Printed in U.S.A. 20M 07-11: 29 Order No. 10473

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