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 X30211MQ

Cup Part Number

 N/A Y30211MQ

Bore (d)

 N/A 55 mm2.1654 in

O.D. (D)

 N/A 100 mm3.937 in

Width (T)

 N/A 22.75 mm0.8957 in
Dynamic Radial Load Rating - 1M Revs (C1) 1 N/A 127000 N28500 lbf
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 32900 N7390 lbf
e Factor 3 N/A 0.4
K Factor 4 N/A 1.44
Y Factor 5 N/A 1.48

Other Dimensions

Weight

 N/A 0.7 Kg1.6 lb

Inner Ring Width (B)

 N/A 21.000 mm0.8268 in

Outer Ring Width (C)

 N/A 18 mm0.7087 in
Effective Center Location6 N/A -1.8 mm-0.07 in
Max Shaft Fillet Radius7 N/A 2.030 mm0.080 in
Max Housing Fillet Radius8 N/A 1.52 mm0.06 in

Shaft Backing Shoulder Dia. - Frontface (da)

 N/A 64 mm2.52 in

Shaft Backing Shoulder Dia. - Backface (db)

 N/A 67 mm2.64 in

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 90.93 mm3.58 in

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 95.5 mm3.76 in

Cage Location rel. to BF (Aa)

 N/A 1 mm0.04 in

Cage Location rel. to FF (Ab)

 N/A 4.1 mm0.16 in

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)9 N/A 22800 N5120 lbf

Static Radial Load Rating (C0)

 N/A 122000 N27400 lbf

Factors

G1 Factor

 N/A 41.9

G2 Factor

 N/A 22.8
Geometry Factor (Cg)10 N/A 0.0897
  • 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.