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Unit of Measure

Other Dimensions

Weight

 N/A 24.97 Kg55.05 lb

Width (T)

 N/A 9.2500 in234.950 mm

C - Width

 N/A 8.5 in215.9 mm
Max Shaft Fillet Radius1 N/A 0.14 in3.6 mm
Max Housing Fillet Radius2 N/A 0.03 in0.8 mm

Shaft Backing Shoulder Diameter - Backface (db)

 N/A 7.64 in194 mm

Housing Backing Shoulder Diameter - Frontface (Da)

 N/A 9.48 in240.8 mm

Key Dimensions

Cone Part Number

 N/A 67790

Cup Part Number

 N/A 67720

Inner Spacer Part Number

 N/A X3S-67790

Outer Spacer Part Number

 N/A Y4S-67720

Design Unit

 N/A Inch

Bore (d)

 N/A 7 in177.8 mm

O.D. (D)

 N/A 9.75 in247.65 mm
Dynamic Radial Load Rating - 90M Revs (C90) 3 N/A 23600 lbf105000 N
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row)4 N/A 41100 lbf183000 N
K Factor 5 N/A 1.33
e Factor 6 N/A 0.44

Ratings

C1 - Dynamic Radial Rating (1 million revolutions)7 N/A 159000 lbf705000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)8 N/A 17800 lbf79000 N

Factors

Y1 Factor 9 N/A 1.54
Y2 Factor 10 N/A 2.29
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 These maximum fillet radii will be cleared by the bearing corners.
  • 3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 4 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
  • 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 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 8 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
  • 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 10 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.