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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 325000

Cone Part Number

 N/A EE325296D

Design Units

 N/A Imperial

Cage Type

 N/A Pin-Type
C1 - Dynamic Radial Rating (1 million revolutions)1 N/A 1600000 lbf7120000 N

C0 - Static Radial Rating

 N/A 3640000 lbf16200000 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 29.5000 in749.3 mm

B - Double Cone Width

 N/A 13.7500 in349.250 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius2 N/A 0.370 in9.5 mm

da - Cone Frontface Backing Diameter

 N/A 31.75 in806.45 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.43 in10.92 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)3 N/A 415000 lbf1850000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 2790000 lbf12400000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 723000 lbf3220000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 234000 lbf1040000 N

Factors

K - Factor7 N/A 1.77

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 21200

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 980
Cg - Geometry Factor8 N/A 0.355
  • 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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