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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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Spherical bearings are designed to manage high radial loads even when misalignment, poor lubrication, contamination, extreme speeds or critical application stresses are present.
Unit of Measure

Specifications

Design Unit

 N/A Metric

d - Bore

 N/A 400 mm

Cage Type

 N/A YMB

Cage Material

 N/A Brass

Dimensions

D - Outer Diameter

 N/A 820 mm32.2840 in

B' - Inner Ring Width

 N/A 243 mm9.567 in

B - Outer Ring Width

 N/A 243 mm9.5670 in

Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius1 N/A 6 mm0.24 in
r - Outer Ring "To Clear" Radius2 N/A 6 mm0.24 in

da - Inner Ring Backing Diameter

 N/A 496.000 mm19.500 in

Da - Outer Ring Backing Diameter

 N/A 729.000 mm28.7000 in

Basic Load Ratings

C0 - Static Radial Rating

 N/A 10100000 N2280000 lbf

C1(2) - Dynamic Radial Rating (Two-Rows)

 N/A 7220000 N1620000 lbf

Factors

e - ISO Factor3 N/A 0.3
Y0 - ISO Factor4 N/A 2.23
Y1 - ISO Factor5 N/A 2.28
Y2 - ISO Factor6 N/A 3.4

Reference Thermal Speed Rating (Grease)

 N/A 410 rpm
Reference Thermal Speed Rating (Oil)7 N/A 440 rpm
Cg - Geometry Factor8 N/A 0.0994
  • 1 Maximum housing fillet radius that bearing corners will clear.
  • 2 Maximum shaft fillet radius that bearing corners will clear.
  • 3 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 4 These factors apply for both inch and metric calculations. See engineering
  • 5 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 6 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 7 See thermal speed ratings in the engineering section.
  • 8 Geometry constant for Lubrication Life Adjustment Factor a3l.
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