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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - Single Cups > Tapered Roller Bearings - Single Cups - Imperial > Part Number 525321  
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Part Number 525321, Tapered Roller Bearings - Single Cups - Imperial


This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.



Unit of Measure: Imperial Metric Both

Specifications  · Dimensions  · Abutment and Fillet Dimensions  · Factors

Specifications

Series
525000

Cup Part Number
525321

Design Units
Imperial

Note
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 - Cup Outer Diameter
32.0000 in
812.800 mm

C - Cup Width
5.5000 in
139.700 mm


Abutment and Fillet Dimensions

r - Cup Backface "To Clear" Radius1
0.08 in
2 mm

Db - Cup Backface Backing Diameter
28.23 in
717.00 mm
1 These maximum fillet radii will be cleared by the bearing corners.


Factors

K - Factor1
1.74

e - ISO Factor2
0.71
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.



 DOWNLOADS 

Tapered Roller Bearing Engineering Information
(PDF, 663KB)

Bearing Life Calculation Tool

Bearing Dimensional Tolerances


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