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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.
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Unit of Measure

Key Dimensions

Shaft Diameter (Fw)

 N/A 127.00 mm5.00 in

O.D. (D)

 N/A 165.1 mm6.5 in

Width (C)

 N/A 63.5 mm2.5 in
Dynamic Radial Load Rating - 1M Revs (C1)1 N/A 345000 N77600 lbf

Other Dimensions

Max Housing Fillet Radius LF OD

 N/A 0.1 in2.540 mm

Max Housing Fillet Radius RF OD

 N/A 0.1 in2.540 mm

Ratings

Static Radial Load Rating (C0)

 N/A 684000 N154000 lbf

Thermal Speed Ratings - Oil

 N/A 2800 rpm

Thermal Reference Speed - Grease 

 N/A 2500 rpm

Factors

Geometry Factor (Cg) 2 N/A 0.1213

Mounting Data

Max. Mounting Dimensions Clearance Fit 1

 N/A 127.00 mm5.00 in

Min. Mounting Dimensions Clearance Fit 1

 N/A 126.975 mm4.9990 in

Max. Mounting Dimensions Clearance Fit 2

 N/A 165.141 mm6.5016 in

Min. Mounting Dimensions Clearance Fit 2

 N/A 165.100 mm6.500 in

Max. Mounting Dimensions Tight Transition Fit S

 N/A 4.9984 mm126.959 in

Min. Mounting Dimensions Tight Transition Fit S

 N/A 126.934 mm4.9974 in

Max. Mounting Dimensions Tight Transition Fit H

 N/A 165.044 mm6.4978 in

Min. Mounting Dimensions Tight Transition Fit H

 N/A 165.085 mm6.4994 in

Shoulder Diameter Da

 N/A 150.81 mm5.938 in

Sub Assembly Part Numbers

Used with Inner Ring Designation

 N/A IR-648040
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 2 Cg factor for bearing without inner ring.