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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - Double Cups > Tapered Roller Bearings - Double Tapered Cup - Imperial > Part Number A2120D  
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Part Number A2120D, Tapered Roller Bearings - Double Tapered Cup - Imperial



The configuration of the TDO provides a wide effective bearing spread, making it ideal for applications in which overturning moments are a significant load component. TDO bearings can be used in fixed positions or allowed to float in the housing bore.



Unit of Measure: Imperial Metric Both

Specifications  · Dimensions  · Abutment and Fillet Dimensions  · Factors

Specifications

Series

A2000

Cup Part Number

A2120D

Design Units

Imperial


Dimensions

D - Cup Outer Diameter

1.2000 in
30.480
mm

C - Double Cup Width

0.8370 in
21.260
mm


Abutment and Fillet Dimensions

Da - Cup Frontface Backing Diameter

1.12 in
28.40
mm


Factors

K - Factor1

1.44

e - ISO Factor2

0.41

Y1 - ISO Factor3

1.67

Y2 - ISO Factor4

2.48

Cg - Geometry Factor5

0.0308
1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
2 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
3 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
4 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
5 Geometry constant for Lubrication Life Adjustment Factor a3l.



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