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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

Metric

d - Bore

460 mm

Cage Type

YMB

Cage Material

Brass

Dimensions

D - Outer Diameter

26.7720 in680 mm

B' - Inner Ring Width

6.417 in163 mm

B - Outer Ring Width

6.417 in163 mm

Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius1 0.200 in5 mm
r - Outer Ring "To Clear" Radius2 0.200 in5 mm

da - Inner Ring Backing Diameter

512.000 mm20.100 in

Da - Outer Ring Backing Diameter

631.000 mm24.9000 in

Basic Load Ratings

C0 - Static Radial Rating

1700000 lbf7570000 N

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

913000 lbf4060000 N

Factors

e - ISO Factor3 0.22
Y0 - ISO Factor4 2.99
Y1 - ISO Factor5 3.06
Y2 - ISO Factor6 4.56

Reference Thermal Speed Rating (Grease)

550 rpm
Reference Thermal Speed Rating (Oil)7 640 rpm
Cg - Geometry Factor8 0.0991
  • 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.