The Timken Company - Fafnir® Large Imperial Ball Bearings (XLS, BIC)

Smarter Bearing Selection Is Here

The Timken ^® Syber ^® Bearing System Designer Tool now features Smart Selection, enabling users to find the right bearing faster by filtering options based on target life and key dimensions.

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Analyze Bearing Performance in an Application with Timken ^® Syber ^® Bearing System Designer

A powerful software tool that combines calculators and configurators to assist you with application design, bearing selection, installation, and troubleshooting. It’s free, easy-to-use, and accessible 24/7.

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Simplified Gear Force Analysis

Alex Waye, Timken Application Engineer, shows you how to instantly compute tangential, radial, and axial forces for better design decisions.

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Radial ball bearings consist of an inner and outer ring with a cage containing a complement of precision balls. The standard Conrad-type bearing has a deep-groove construction capable of handling radial and axial loads from either direction in versatile designs that permit relatively high-speed operation.

In addition to standard single-row deep groove bearings, Timken offers special designs, including a maximum capacity series and an extra large (XLS) radial series bearing.

Size range: 3 mm - 600 mm (0.12 in. - 23.62 in.) bore

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Unit of Measure

Items	XLS56K2 Fafnir® Large Imperial Ball Bearings (XLS, BIC)	XLS60K2 Fafnir® Large Imperial Ball Bearings (XLS, BIC)	XLS64K2 Fafnir® Large Imperial Ball Bearings (XLS, BIC)	XLS76K2 Fafnir® Large Imperial Ball Bearings (XLS, BIC)	XLS80K2 Fafnir® Large Imperial Ball Bearings (XLS, BIC)
Design Units	N/A
d - Bore	N/A 3 1/2 in	N/A 3 3/4 in	N/A 4 in	N/A 4.7500 in	N/A 5 in
D - Outer Diameter	N/A 5 in127 mm	N/A 5 1/4 in133.350 mm	N/A 5.624 in142.85 mm	N/A 6 1/2 in165.1 mm	N/A 6.999 in177.775 mm
Bearing Width	N/A 0.75 in19.05 mm	N/A 0.75 in19.05 mm	N/A 0.8750 in22.225 mm	N/A 0.8750 in22.225 mm	N/A 1 in25.4 mm
C0 - Static Radial Rating	N/A 7080 lbf31493 N	N/A 7900 lbf35141 N	N/A 9420 lbf41902 N	N/A 12800 lbf56937 N	N/A 15100 lbf67168 N
Ce - Dynamic Radial Rating	N/A 8180 lbf36386 N	N/A 8660 lbf38522 N	N/A 10600 lbf47151 N	N/A 13700 lbf60941 N	N/A 16300 lbf72506 N
Limiting Speed (Grease)	N/A 2790 rpm	N/A 2620 rpm	N/A 2480 rpm	N/A 2110 rpm	N/A 1950 rpm
Limiting Speed (Oil)	N/A 3260 rpm	N/A 3060 rpm	N/A 2890 rpm	N/A 2460 rpm	N/A 2280 rpm
Ball Type	N/A STEEL
R - Inner Ring "To Clear" Radius	N/A 0.07 in1.7 mm	N/A 0.060 in1.6 mm	N/A 0.080 in2 mm	N/A 0.07 in1.7 mm	N/A 0.080 in2 mm
r - Outer Ring "To Clear" Radius¹	N/A 0.07 in1.7 mm	N/A 0.06 in1.6 mm	N/A 0.08 in2 mm	N/A 0.07 in1.7 mm	N/A 0.08 in2 mm
da - Inner Ring Backing Diameter	N/A 3.890 in98.900 mm	N/A 4.190 in106.500 mm	N/A 4.480 in113.800 mm	N/A 5.250 in133.300 mm	N/A 5.660 in143.800 mm
Da - Outer Ring Backing Diameter	N/A 4.620 in117.300 mm	N/A 4.870 in123.600 mm	N/A 5.130 in130.200 mm	N/A 6.020 in152.800 mm	N/A 6.530 in165.900 mm
Bearing Weight	N/A 1.5 lb0.7 Kg	N/A 1.600 lb0.7 Kg	N/A 1.8 lb0.8 Kg	N/A 2.6 lb1.2 Kg	N/A 3.6 lb1.6 Kg
¹ These maximum fillet radii will be cleared by the bearing corners.