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The Timken ® Syber ® Bearing System Designer Tool now features Smart Selection, enabling users to find the right bearing faster by filtering options based on target life and key dimensions.

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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 L217800

Cone Part Number

 N/A L217845D

Cup Part Number

 N/A L217813

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

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 - Bore

 N/A 3.3750 in85.725 mm

D - Cup Outer Diameter

 N/A 5 in127 mm

B - Double Cone Width

 N/A 1.75 in44.45 mm

C - Cup Width

 N/A 0.7500 in19.050 mm

T - Bearing Width across Cups

 N/A 1.6250 in41.275 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.03 in0.800 mm
r - Cup Backface "To Clear" Radius2 N/A 0.06 in1.52 mm

da - Cone Frontface Backing Diameter

 N/A 3.66 in93 mm

Db - Cup Backface Backing Diameter

 N/A 4.61 in117.09 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.04 in1 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 N/A 5400 lbf24000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 36300 lbf161000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 9400 lbf41800 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 3050 lbf13600 N

Factors

K - Factor7 N/A 1.77
e - ISO Factor8 N/A 0.33
Y1 - ISO Factor9 N/A 2.05
Y2 - ISO Factor10 N/A 3.05

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 111

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 74.7
Cg - Geometry Factor11 N/A 0.115

Spacer

Note

 N/A Spacer shows standard nominal .01 radii, actual bearing may vary
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 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 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 10 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 11 Geometry constant for Lubrication Life Adjustment Factor a3l.
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