Unit of Measure

Key Dimensions

Cone Part Number

 N/A X30207MQ

Cup Part Number

 N/A Y30207MQ

Bore (d)

 N/A 40 mm1.5748 in

O.D. (D)

 N/A 80 mm3.15 in

Width (T)

 N/A 19.75 mm0.7776 in
Dynamic Radial Load Rating - 1M Revs (C1) 1 N/A 84000 N18900 lbf
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 21800 N4900 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 0.43 Kg0.9 lb

Inner Ring Width (B)

 N/A 18 mm0.7087 in

Outer Ring Width (C)

 N/A 16 mm0.6299 in
Effective Center Location6 N/A -3 mm-0.12 in
Max Shaft Fillet Radius7 N/A 1.520 mm0.06 in
Max Housing Fillet Radius8 N/A 1.5 mm0.06 in

Shaft Backing Shoulder Dia. - Frontface (da)

 N/A 47.5 mm1.87 in

Shaft Backing Shoulder Dia. - Backface (db)

 N/A 49.5 mm1.95 in

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 74.93 mm2.95 in

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 71 mm2.8 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 14000 N3140 lbf

Static Radial Load Rating (C0)

 N/A 74700 N16800 lbf

Factors

G1 Factor

 N/A 22.5

G2 Factor

 N/A 14.3
Geometry Factor (Cg)10 N/A 0.0712
  • 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.