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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 48200

Cone Part Number

 N/A 48290DW

Design Units

 N/A Imperial

Cage Type

 N/A Stamped Steel
C1 - Dynamic Radial Rating (1 million revolutions)1 N/A 60200 lbf268000 N

C0 - Static Radial Rating

 N/A 111000 lbf493000 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 5 in127 mm

B - Double Cone Width

 N/A 3.0000 in76.200 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 5.39 in137 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.09 in2.3 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)3 N/A 15600 lbf69400 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 105000 lbf466000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 27200 lbf121000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 8160 lbf36300 N

Factors

K - Factor7 N/A 1.91

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 353
Cg - Geometry Factor8 N/A 0.114
  • 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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