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TDI bearings have a one-piece double inner race and two single outer races and are typically supplied complete with an outer race spacer as a pre-set assembly. The bearing can be used at fixed positions on rotation shaft applications. For rotating housing application it can be used to float on the stationary shaft.
Unit of Measure

Specifications

Series

 N/A 940000

Cone Part Number

 N/A EE941206D

Design Units

 N/A Imperial

Cage Type

 N/A Pin-Type
C1 - Dynamic Radial Rating (1 million revolutions)1 N/A 348000 lbf1550000 N

C0 - Static Radial Rating

 N/A 471000 lbf2090000 N

Dimensions

d - Cone Bore

 N/A 12 in304.8 mm

B - Double Cone Width

 N/A 5.3125 in134.938 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius2 N/A 0.06 in1.5 mm

da - Cone Frontface Backing Diameter

 N/A 12.95 in329 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.27 in6.9 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)3 N/A 90300 lbf402000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 607000 lbf2700000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 157000 lbf700000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 62200 lbf277000 N

Factors

K - Factor7 N/A 1.45
Cg - Geometry Factor8 N/A 0.166
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 2 These maximum fillet radii will be cleared by the bearing corners.
  • 3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 4 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 5 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.
  • 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 Geometry constant for Lubrication Life Adjustment Factor a3l.
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