Montage of Timken Bearing Products
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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 170 mm

O.D. (D)

N/A 310 mm12.2047 in

B' - Inner Ring Width

N/A 86 mm3.3858 in

B - Outer Ring Width

N/A 86 mm3.3858 in

Dynamic Radial Load Rating - 1M Revs (C1)

N/A 1590000 N359000 lbf
e Factor1 N/A 0.26

Dimensions

R - Inner Ring "To Clear" Radius2 N/A 3 mm0.120 in
r - Outer Ring "To Clear" Radius3 N/A 3 mm0.12 in

Shaft Backing Shoulder Diameter

N/A 204 mm8.0000 in

Housing Backing Shoulder Diameter

N/A 281 mm11.1000 in

Basic Load Ratings

Static Radial Load Rating (C0)

N/A 1290000 N290000 lbf

Thermal Reference Speed - Grease 

N/A 1700 rpm
Thermal Reference Speed - Oil4 N/A 2000 rpm

Key Dimensions

Y0 Factor5 N/A 2.55

Factors

Y1 Factor 6 N/A 2.61
Y2 Factor 7 N/A 3.89
Geometry Factor (Cg)8 N/A 0.0901
  • 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.