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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 222.25 mm8.75 in

D - Outer Diameter

 N/A 269.875 mm10.6250 in

Dimension C/B

 N/A 76.2 mm3.0000 in

Specifications

Static Load Rating Co

 N/A 1370000 N308000 lbf
Dynamic Load Rating C11 N/A 581000 N131000 lbf
Geometry Factor Cg2 N/A 0.1810

Thermal Speed Ratings - Oil

 N/A 1400 rpm

Thermal Speed Ratings - Grease

 N/A 1200 rpm

Mounting Data

Chamfer rsmin

 N/A 4.060 mm0.16 in

Max. Mounting Dimensions Clearance Fit 1

 N/A 222.25 mm8.75 in

Min. Mounting Dimensions Clearance Fit 1

 N/A 222.220 mm8.7488 in

Max. Mounting Dimensions Clearance Fit 2

 N/A 269.926 mm10.6270 in

Min. Mounting Dimensions Clearance Fit 2

 N/A 269.875 mm10.625 in

Max. Mounting Dimensions Tight Transition Fit S

 N/A 8.7480 mm222.199 in

Min. Mounting Dimensions Tight Transition Fit S

 N/A 222.169 mm8.7468 in

Max. Mounting Dimensions Tight Transition Fit H

 N/A 269.809 mm10.6220 in

Min. Mounting Dimensions Tight Transition Fit H

 N/A 269.860 mm10.6240 in

Shoulder Diameter Da

 N/A 254.00 mm10.000 in

Sub Assembly Part Numbers

Used with Inner Ring Designation

 N/A IR-12014048
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 2 Cg factor for bearing without inner ring.