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
This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.
Unit of Measure

Key Dimensions

UPC

 N/A 0053893538013

Cone Part Number

 N/A M238840

Bore (d)

 N/A 7.0000 in177.800 mm

Inner Ring Width (B)

 N/A 2.1875 in55.563 mm
Dynamic Radial Load Rating - 1M Revs (C1) 1 N/A 114000 lbf508000 N
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 29600 lbf132000 N
K Factor 3 N/A 1.76

Other Dimensions

Weight

 N/A 50.49 lb22.902 Kg
Effective Center Location4 N/A -0.24 in-6.1 mm
Max Shaft Fillet Radius5 N/A 0.140 in3.600 mm

Shaft Backing Shoulder Diameter - Frontface (da)

 N/A 7.64 in194 mm

Shaft Backing Shoulder Diameter - Backface (db)

 N/A 7.8 in198 mm

Cage Location rel. to BF (Aa)

 N/A 0.21 in5.3 mm

Cage Location rel. to FF (Ab)

 N/A 0.12 in3 mm

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)6 N/A 16800 lbf74900 N

Static Radial Load Rating (CO)

 N/A 225000 lbf999000 N

Factors

G1 Factor

 N/A 788

G2 Factor

 N/A 118
Geometry Factor (Cg)7 N/A 0.120
  • 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 Negative value indicates effective center inside cone backface.
  • 5 These maximum fillet radii will be cleared by the bearing corners.
  • 6 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.
  • 7 Geometry constant for Lubrication Life Adjustment Factor a3l.