Tapered Roller Bearings - 2S (Matched Bearing Assembly, with snap ring spacer)
Unit of Measure

Key Dimensions

Cone Part Number

 N/A 28584

Cup Part Number

 N/A 28521

Inner Spacer Part Number

 N/A K107577R

Outer Spacer Part Number

 N/A K107578R

Bore (d)

 N/A 2.0625 in52.388 mm

O.D. (D)

 N/A 3.6250 in92.075 mm

Width (T)

 N/A 2.1556 in54.752 mm
Dynamic Radial Load Rating - 1M Revs (C1)1 N/A 38700 lbf172000 N
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 5770 lbf25700 N
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row)3 N/A 10000 lbf44700 N
e Factor 4 N/A 0.38
K Factor 5 N/A 1.55

Other Dimensions

Weight

 N/A 1.44 Kg3.2 lb

Width (C)

 N/A 1.7806 in45.227 mm

Snap Ring Diameter

 N/A 3.77 in95.83 mm

Snap Ring Width

 N/A 0.22 in5.54 mm
Max Shaft Fillet Radius6 N/A 0.14 in3.600 mm

Shaft Backing Shoulder Dia. - Backface (db)

 N/A 2.56 in65 mm

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 3.46 in87.88 mm

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)7 N/A 3720 lbf16600 N

Factors

Y1 Factor 8 N/A 1.79
Y2 Factor 9 N/A 2.66
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 2 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 3 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.
  • 4 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 5 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 6 These maximum fillet radii will be cleared by the bearing corners.
  • 7 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.
  • 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.