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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 821000

Cone Part Number

 N/A EE821096D

Cup Part Number

 N/A 821165

Design Unit

 N/A Inch

Cage Material

 N/A Pin-Type

Related Assembly Number(s)

 N/A EE821096D-90010 EE821096D-90011 EE821096D-90012 EE821096D-902A1

Dimensions

d - Bore

 N/A 9 1/2 in241.300 mm

D - Cup Outer Diameter

 N/A 16.5 in419.1 mm

B - Double Cone Width

 N/A 6.8750 in174.625 mm

C - Cup Width

 N/A 2.8125 in71.438 mm

T - Bearing Width across Cups

 N/A 6.9999 in177.797 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.13 in3.300 mm
r - Cup Backface "To Clear" Radius2 N/A 0.250 in6.4 mm

da - Cone Frontface Backing Diameter

 N/A 10.55 in268 mm

Db - Cup Backface Backing Diameter

 N/A 14.96 in380.00 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.21 in5.3 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 N/A 88600 lbf394000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 595000 lbf2650000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 154000 lbf686000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 63100 lbf281000 N

Factors

K - Factor7 N/A 1.4
e - ISO Factor8 N/A 0.42
Y1 - ISO Factor9 N/A 1.62
Y2 - ISO Factor10 N/A 2.42

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 1490
Cg - Geometry Factor11 N/A 0.16

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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