The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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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

Key Dimensions

Design Unit

 N/A Metric

Bore (d)

 N/A 440 mm

O.D. (D)

 N/A 720 mm28.3470 in

B' - Inner Ring Width

 N/A 280 mm11.024 in

B - Outer Ring Width

 N/A 280 mm11.0240 in

Dynamic Radial Load Rating - 1M Revs (C1)

 N/A 12900000 N2900000 lbf
e Factor1 N/A 0.36

Dimensions

R - Inner Ring "To Clear" Radius2 N/A 5 mm0.200 in
r - Outer Ring "To Clear" Radius3 N/A 5 mm0.200 in

Shaft Backing Shoulder Diameter

 N/A 495.000 mm19.500 in

Housing Backing Shoulder Diameter

 N/A 656 mm25.8000 in

Basic Load Ratings

Static Radial Load Rating (C0)

 N/A 7120000 N1600000 lbf

Thermal Reference Speed - Grease 

 N/A 250 rpm
Thermal Reference Speed - Oil4 N/A 260 rpm

Key Dimensions

Y0 Factor5 N/A 1.84

Factors

Y1 Factor 6 N/A 1.88
Y2 Factor 7 N/A 2.79
Geometry Factor (Cg)8 N/A 0.0983
  • 1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 2 Maximum housing fillet radius that bearing corners will clear.
  • 3 Maximum shaft fillet radius that bearing corners will clear.
  • 4 See thermal speed ratings in the engineering section.
  • 5 These factors apply for both inch and metric calculations. See engineering
  • 6 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 7 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 8 Geometry constant for Lubrication Life Adjustment Factor a3l.