Montage of Timken Bearing Products
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
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

Series

 N/A 430000

Cone Part Number

 N/A EE430902

Cup Part Number

 N/A 431575

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

Dimensions

d - Bore

 N/A 9 in228.600 mm

D - Cup Outer Diameter

 N/A 15.7500 in400.050 mm

B - Cone Width

 N/A 3.4375 in87.313 mm

C - Cup Width

 N/A 2.5 in63.5 mm

T - Bearing Width

 N/A 3.5001 in88.903 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.780 in19.800 mm
r - Cup Backface "To Clear" Radius2 N/A 0.130 in3.30 mm

da - Cone Frontface Backing Diameter

 N/A 9.96 in253 mm

db - Cone Backface Backing Diameter

 N/A 11.42 in290.0 mm

Da - Cup Frontface Backing Diameter

 N/A 14.49 in368.00 mm

Db - Cup Backface Backing Diameter

 N/A 14.17 in359.92 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.11 in2.8 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.55 in14 mm
a - Effective Center Location3 N/A -0.19 in-4.8 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 65500 lbf291000 N
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 253000 lbf1120000 N

C0 - Static Radial Rating

 N/A 432000 lbf1920000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 49300 lbf219000 N

Factors

K - Factor7 N/A 1.33
e - ISO Factor8 N/A 0.44
Y - ISO Factor9 N/A 1.36

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 1351.2

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 142.8
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.