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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

380 mm

Cage Type

YMB

Cage Material

Brass

Dimensions

D - Outer Diameter

680 mm26.772 in

B' - Inner Ring Width

240 mm9.449 in

B - Outer Ring Width

240 mm9.4490 in

Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius1 5 mm0.200 in
r - Outer Ring "To Clear" Radius2 5 mm0.2 in

da - Inner Ring Backing Diameter

442 mm17.4000 in

Da - Outer Ring Backing Diameter

611.000 mm24.1000 in

Basic Load Ratings

C0 - Static Radial Rating

9520000 N2140000 lbf

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

5970000 N1340000 lbf

Factors

e - ISO Factor3 0.34
Y0 - ISO Factor4 1.94
Y1 - ISO Factor5 1.98
Y2 - ISO Factor6 2.95

Reference Thermal Speed Rating (Grease)

390 rpm
Reference Thermal Speed Rating (Oil)7 420 rpm
Cg - Geometry Factor8 0.0919
  • 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.