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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 43300  
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Part Number 43300, 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
43000

Cup Part Number
43300

Design Units
Imperial


Dimensions

D - Cup Outer Diameter
3 in
76.2 mm

C - Cup Width
0.6563 in
16.670 mm


Abutment and Fillet Dimensions

r - Cup Backface "To Clear" Radius1
0.130 in
3.30 mm

Da - Cup Frontface Backing Diameter
2.91 in
73.90 mm

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


Factors

e - ISO Factor1
0.67

Y - ISO Factor2
0.9

Cg - Geometry Factor3
0.0774
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 Geometry constant for Lubrication Life Adjustment Factor a3l.



 DOWNLOADS 

Tapered Roller Bearing Engineering Information
(PDF, 663KB)

Bearing Life Calculation Tool

Bearing Dimensional Tolerances


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