Aerospace / Military
Aerospace Series General Aviation Rod Ends Spherical Bearings Mil Spec Series Rod Ends Spherical Bearings Bushings Approved Part Numbers
Commercial / Industrial
Rod End Bearings Inch Rod Ends Metric Rod Ends Spherical Bearings Inch Spherical Bearings Metric Spherical Bearings
Technical Resources
Terms and Definitions Articles Technical Data FAQs Key Term Translation Custom Engineered Products
Online Catalog
Engineers power search our entire catalog of bearing and bushings, with access to every attribute and technical specification possible. View our online catalog...
Request Information
Unit of Measure

Key Dimensions

Cone Part Number

 N/A X30218MQ

Cup Part Number

 N/A Y30218MQ

Bore (d)

 N/A 90 mm3.5433 in

O.D. (D)

 N/A 160 mm6.2992 in

Width (T)

 N/A 32.5 mm1.2795 in
Dynamic Radial Load Rating - 1M Revs (C1) 1 N/A 285000 N64100 lbf
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 73900 N16600 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 2.6 Kg5.8 lb

Inner Ring Width (B)

 N/A 30.000 mm1.1811 in

Outer Ring Width (C)

 N/A 26 mm1.0236 in
Effective Center Location6 N/A -0.5 mm-0.02 in
Max Shaft Fillet Radius7 N/A 2.540 mm0.100 in
Max Housing Fillet Radius8 N/A 2.03 mm0.08 in

Shaft Backing Shoulder Dia. - Frontface (da)

 N/A 102 mm4.02 in

Shaft Backing Shoulder Dia. - Backface (db)

 N/A 106 mm4.17 in

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 146.05 mm5.75 in

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 151.90 mm6.00 in

Cage Location rel. to BF (Aa)

 N/A 0.3 mm0.01 in

Cage Location rel. to FF (Ab)

 N/A 5.6 mm0.22 in

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)9 N/A 53100 N11900 lbf

Static Radial Load Rating (C0)

 N/A 295000 N66200 lbf

Factors

G1 Factor

 N/A 125.9

G2 Factor

 N/A 47.7
Geometry Factor (Cg)10 N/A 0.0844
  • 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.