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

Cone Part Number

 N/A EE117067

Design Units

 N/A Imperial

Cage Type

 N/A Pin-Type
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 N/A 518000 lbf2300000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 N/A 134000 lbf598000 N

Note

 N/A This part has a non-standard shoulder design. Please email customer CAD for shoulder details to ensure the proper design of mating components.

Dimensions

d - Cone Bore

 N/A 6.7500 in171.450 mm

B - Cone Width

 N/A 3.1250 in79.375 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius3 N/A 0.25 in6.35 mm

da - Cone Frontface Backing Diameter

 N/A 8.07 in205 mm

db - Cone Backface Backing Diameter

 N/A 8.46 in215 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.44 in11.2 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.57 in14.5 mm
a - Effective Center Location4 N/A 0.48 in12.2 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)5 N/A 77200 lbf343000 N
C1 - Dynamic Radial Rating (1 million revolutions)6 N/A 298000 lbf1320000 N

C0 - Static Radial Rating

 N/A 314000 lbf1400000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)7 N/A 93300 lbf415000 N

Factors

K - Factor8 N/A 0.83

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 658.9

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 65
Cg - Geometry Factor9 N/A 0.143
  • 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.