All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - Double Cups > Tapered Roller Bearings - Double Tapered Cup - Imperial > Part Number DX312938  

Part Number DX312938, Tapered Roller Bearings - Double Tapered Cup - Imperial

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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.




Specifications  · Dimensions  · Abutment and Fillet Dimensions  · Factors

Specifications

Cup Part Number
DX312938

Design Units
Imperial


Dimensions

D - Cup Outer Diameter
21.0 in
533.400 mm

C - Double Cup Width
6.5 in
165.1 mm


Abutment and Fillet Dimensions

r - Cup Backface "To Clear" Radius1
0.06 in
1.5 mm

Da - Cup Frontface Backing Diameter
19.54 in
496.30 mm
1 These maximum fillet radii will be cleared by the bearing corners.


Factors

K - Factor1
0.62

e - ISO Factor2
3.08

Y1 - ISO Factor3
0.22
0.33

Y2 - ISO Factor4
0.33

Cg - Geometry Factor5
0.21
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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