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Unit of Measure

Key Dimensions

Cone Part Number

 N/A X30210Q

Cup Part Number

 N/A Y30210Q

Bore (d)

 N/A 50 mm1.9685 in

O.D. (D)

 N/A 90 mm3.5433 in

Width (T)

 N/A 21.75 mm0.8563 in
Dynamic Radial Load Rating - 1M Revs (C1) 1 N/A 79500 N17900 lbf
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 20600 N4630 lbf
e Factor 3 N/A 0.42
K Factor 4 N/A 1.39
Y Factor 5 N/A 1.43

Other Dimensions

Weight

 N/A 0.5 Kg1.2 lb

Inner Ring Width (B)

 N/A 20.000 mm0.7874 in

Outer Ring Width (C)

 N/A 17 mm0.6693 in
Effective Center Location6 N/A -2 mm-0.08 in
Max Shaft Fillet Radius7 N/A 1.520 mm0.060 in
Max Housing Fillet Radius8 N/A 1.52 mm0.06 in

Shaft Backing Shoulder Dia. - Frontface (da)

 N/A 56 mm2.2 in

Shaft Backing Shoulder Dia. - Backface (db)

 N/A 59 mm2.32 in

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 81.03 mm3.19 in

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 85.10 mm3.39 in

Cage Location rel. to BF (Aa)

 N/A 0.8 mm0.03 in

Cage Location rel. to FF (Ab)

 N/A 3.8 mm0.15 in

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)9 N/A 14800 N3330 lbf

Static Radial Load Rating (C0)

 N/A 87400 N19700 lbf

Factors

G1 Factor

 N/A 30.3

G2 Factor

 N/A 15.9
Geometry Factor (Cg)10 N/A 0.0814
  • 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 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 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 Negative value indicates effective center inside cone backface.
  • 7 These maximum fillet radii will be cleared by the bearing corners.
  • 8 These maximum fillet radii will be cleared by the bearing corners.
  • 9 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.
  • 10 Geometry constant for Lubrication Life Adjustment Factor a3l.