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...
CAD (0) ▾
  • Cart is empty
  1. Request CAD files
Request Information Add to CAD Cart
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

Specifications

Cone Part Number

 N/A DX920827

Cup Part Number

 N/A DX467768

Design Unit

 N/A Inch

Cage Material

 N/A Pin-Type

Dimensions

d - Bore

 N/A 7.5 in190.5 mm

D - Cup Outer Diameter

 N/A 16.8750 in428.625 mm

B - Cone Width

 N/A 3.7500 in95.250 mm

C - Cup Width

 N/A 2.4375 in61.913 mm

T - Bearing Width

 N/A 4.1875 in106.363 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.25 in6.35 mm
r - Cup Backface "To Clear" Radius2 N/A 0.250 in6.35 mm

da - Cone Frontface Backing Diameter

 N/A 9.33 in237 mm

db - Cone Backface Backing Diameter

 N/A 9.45 in240 mm

Da - Cup Frontface Backing Diameter

 N/A 15.10 in383.54 mm

Db - Cup Backface Backing Diameter

 N/A 14.37 in365.00 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.64 in16.3 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.84 in21.3 mm
a - Effective Center Location3 N/A 0.51 in13 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 108000 lbf480000 N
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 416000 lbf1850000 N

C0 - Static Radial Rating

 N/A 382000 lbf1700000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 140000 lbf623000 N

Factors

K - Factor7 N/A 0.77
e - ISO Factor8 N/A 0.76
Y - ISO Factor9 N/A 0.79

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 827.7

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 77.3
Cg - Geometry Factor10 N/A 0.157
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 These maximum fillet radii will be cleared by the bearing corners.
  • 3 Negative value indicates effective center inside cone backface.
  • 4 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 5 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 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 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 10 Geometry constant for Lubrication Life Adjustment Factor a3l.