All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - Single Cups > Tapered Roller Bearings - Single Cups - Metric > Part Number JLM300816  

Part Number JLM300816, Tapered Roller Bearings - Single Cups - Metric

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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.




Specifications  · Dimensions  · Abutment and Fillet Dimensions  · Factors

Specifications

Series
LM300800

Cup Part Number
JLM300816

Design Units
METRIC


Dimensions

D - Cup Outer Diameter
78 mm
3.0709 in

C - Cup Width
13.500 mm
0.5315 in


Abutment and Fillet Dimensions

r - Cup Backface "To Clear" Radius1
0.25 mm
0.010 in

Da - Cup Frontface Backing Diameter
69.10 mm
2.74 in

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


Factors

K - Factor1
1.68

e - ISO Factor2
0.35

Y - ISO Factor3
1.72

G1 - Heat Generation Factor (Roller-Raceway)
22.5

G2 - Heat Generation Factor (Rib-Roller End)
18.1
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.



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Tapered Roller Bearing Engineering Information
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