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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TS (Tapered Single) > Tapered Roller Bearings - TS (Tapered Single) Metric > Part Number JLM67041P - JLM67020P  
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Part Number JLM67041P - JLM67020P, Tapered Roller Bearings - TS (Tapered Single) Metric


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  · Basic Load Ratings  · Factors

Specifications

Series
LM67000

Cone Part Number
JLM67041P

Cup Part Number
JLM67020P

Design Unit
Metric

Cage Material
Stamped Steel


Dimensions

d - Bore
25.413 mm
1.0005 in

D - Cup Outer Diameter
58.513 mm
2.3037 in

B - Cone Width
16.231 mm
0.6390 in

C - Cup Width
11.561 mm
0.4552 in

T - Bearing Width
15.392 mm
0.6060 in


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.760 mm
0.03 in

r - Cup Backface "To Clear" Radius2
1.27 mm
0.050 in

da - Cone Frontface Backing Diameter
32.5 mm
1.28 in

db - Cone Backface Backing Diameter
33.5 mm
1.32 in

Da - Cup Frontface Backing Diameter
55.90 mm
2.24 in

Db - Cup Backface Backing Diameter
52.07 mm
2.05 in

Ab - Cage-Cone Frontface Clearance
1.3 mm
0.05 in

Aa - Cage-Cone Backface Clearance
-0.3 mm
-0.01 in

a - Effective Center Location3
-2.3 mm
-0.09 in
1 These maximum fillet radii will be cleared by the bearing corners.
2 These maximum fillet radii will be cleared by the bearing corners.
3 Negative value indicates effective center inside cone backface.


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)1
12100 N
2720 lbf

C1 - Dynamic Radial Rating (1 million revolutions)2
46700 N
10500 lbf

C0 - Static Radial Rating
44600 N
10000 lbf

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
8550 N
1920 lbf
1 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
2 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.


Factors

K - Factor1
1.42

e - ISO Factor2
0.41

Y - ISO Factor3
1.46

G1 - Heat Generation Factor (Roller-Raceway)
12.8

G2 - Heat Generation Factor (Rib-Roller End)
9.7

Cg - Geometry Factor4
0.0612
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 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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