Unit of Measure

Key Dimensions

Cone Part Number

 N/A X30208MQ

Cup Part Number

 N/A Y30208MQ

Bore (d)

 N/A 35 mm1.378 in

O.D. (D)

 N/A 72 mm2.8346 in

Width (T)

 N/A 18.25 mm0.7185 in
Dynamic Radial Load Rating - 1M Revs (C1) 1 N/A 71800 N16100 lbf
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 18600 N4180 lbf
e Factor 3 N/A 0.37
K Factor 4 N/A 1.56
Y Factor 5 N/A 1.6

Other Dimensions

Weight

 N/A 0.34 Kg0.74 lb

Inner Ring Width (B)

 N/A 17 mm0.6693 in

Outer Ring Width (C)

 N/A 15 mm0.5906 in
Effective Center Location6 N/A -3.3 mm-0.13 in
Max Shaft Fillet Radius7 N/A 1.5 mm0.06 in
Max Housing Fillet Radius8 N/A 1.5 mm0.06 in

Shaft Backing Shoulder Dia. - Frontface (da)

 N/A 42.5 mm1.67 in

Shaft Backing Shoulder Dia. - Backface (db)

 N/A 44.45 mm1.75 in

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 67 mm2.64 in

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 64 mm2.52 in

Cage Location rel. to BF (Aa)

 N/A 0 mm0 in

Cage Location rel. to FF (Ab)

 N/A 3.3 mm0.13 in

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)9 N/A 11900 N2690 lbf

Static Radial Load Rating (C0)

 N/A 63600 N14300 lbf

Factors

G1 Factor

 N/A 18

G2 Factor

 N/A 13.3
Geometry Factor (Cg)10 N/A 0.0662
  • 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.