COMPANY HEADER
CAD (0) ▾
  • Cart is empty
  1. Request CAD files
Terms
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 426000

Cone Part Number

 N/A EE426200

Design Units

 N/A Imperial

Cage Type

 N/A Pin-Type
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 N/A 1410000 lbf6290000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 N/A 366000 lbf1630000 N

Dimensions

d - Cone Bore

 N/A 20.0000 in508 mm

B - Cone Width

 N/A 5.5000 in139.700 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius3 N/A 0.380 in9.700 mm

da - Cone Frontface Backing Diameter

 N/A 21.73 in552 mm

db - Cone Backface Backing Diameter

 N/A 22.2 in564 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.4 in10.2 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.8 in20.3 mm
a - Effective Center Location4 N/A 0.94 in23.9 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)5 N/A 210000 lbf936000 N
C1 - Dynamic Radial Rating (1 million revolutions)6 N/A 812000 lbf3610000 N

C0 - Static Radial Rating

 N/A 1470000 lbf6530000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)7 N/A 173000 lbf769000 N

Factors

K - Factor8 N/A 1.22

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 6650

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 435
Cg - Geometry Factor9 N/A 0.272
  • 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 for a single-row, C90(2) is the two-row radial value.
  • 3 These maximum fillet radii will be cleared by the bearing corners.
  • 4 Negative value indicates effective center inside cone backface.
  • 5 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 6 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 7 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.
  • 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 9 Geometry constant for Lubrication Life Adjustment Factor a3l.