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  • Clearance fit suggested for outer ring when housing is stationary relative to load.
  • Tight transition fit suggested if housing rotates relative to load.
  • Consult your Timken representative for oscillating applications (e.g., low radial-clearance concerns).
  • Unmarked end of outer ring should be assembled against housing shoulder to clear maximum allowed housing fillet (ras max).
  • Meets Military Standard MS 51961.
Unit of Measure

Bearing Dimensions

Shaft Diameter (Fw)

 N/A 165.10 mm6.50 in

D - Outer Diameter

 N/A 203.2 mm8 in

Dimension C/B

 N/A 63.5 mm2.5000 in

Specifications

Static Load Rating Co

 N/A 832000 N187000 lbf
Dynamic Load Rating C11 N/A 376000 N84600 lbf
Geometry Factor Cg2 N/A 0.1459

Thermal Speed Ratings - Oil

 N/A 2100 rpm

Thermal Speed Ratings - Grease

 N/A 1800 rpm

Mounting Data

Chamfer rsmin

 N/A 3.050 mm0.12 in

Max. Mounting Dimensions Clearance Fit 1

 N/A 165.10 mm6.50 in

Min. Mounting Dimensions Clearance Fit 1

 N/A 165.075 mm6.4990 in

Max. Mounting Dimensions Clearance Fit 2

 N/A 203.246 mm8.0018 in

Min. Mounting Dimensions Clearance Fit 2

 N/A 203.200 mm8.000 in

Max. Mounting Dimensions Tight Transition Fit S

 N/A 6.4984 mm165.059 in

Min. Mounting Dimensions Tight Transition Fit S

 N/A 165.034 mm6.4974 in

Max. Mounting Dimensions Tight Transition Fit H

 N/A 203.139 mm7.9976 in

Min. Mounting Dimensions Tight Transition Fit H

 N/A 203.185 mm7.9994 in

Shoulder Diameter Da

 N/A 188.91 mm7.438 in

Sub Assembly Part Numbers

Used with Inner Ring Designation

 N/A IR-8810440
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 2 Cg factor for bearing without inner ring.