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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 90 mm

Lubrication Type

 N/A Standard Grease

Cage Type

 N/A EJ

Cage Material

 N/A Steel

Superseded Part

 N/A 21318CJW33C3

Factors

e - ISO Factor1 N/A 0.22
Y0 - ISO Factor2 N/A 2.99
Y1 - ISO Factor3 N/A 3.05
Y2 - ISO Factor4 N/A 4.55

Reference Thermal Speed Rating (Grease)

 N/A 3100 rpm
Reference Thermal Speed Rating (Oil)5 N/A 3700 rpm
Cg - Geometry Factor6 N/A 0.0693

Dimensions

D - Outer Diameter

 N/A 190 mm7.4803 in

B' - Inner Ring Width

 N/A 43 mm1.6929 in

B - Outer Ring Width

 N/A 43 mm1.6929 in

Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius7 N/A 2.5 mm0.100 in
r - Outer Ring "To Clear" Radius8 N/A 2.5 mm0.1 in

da - Inner Ring Backing Diameter

 N/A 118.000 mm4.7000 in

Da - Outer Ring Backing Diameter

 N/A 171.000 mm6.7000 in

Basic Load Ratings

C0 - Static Radial Rating

 N/A 449000 N101000 lbf

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

 N/A 442000 N99400 lbf
  • 1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 2 These factors apply for both inch and metric calculations. See engineering
  • 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. Consult your Timken representative for instruction on use.
  • 5 See thermal speed ratings in the engineering section.
  • 6 Geometry constant for Lubrication Life Adjustment Factor a3l.
  • 7 Maximum housing fillet radius that bearing corners will clear.
  • 8 These maximum fillet radii will be cleared by the bearing corners.