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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TS (Tapered Single) > Tapered Roller Bearings - TS (Tapered Single) Imperial > Part Number LM241148 - LM241111  
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Part Number LM241148 - LM241111, Tapered Roller Bearings - TS (Tapered Single) 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  · Basic Load Ratings  · Factors

Specifications

Series
LM241100

Cone Part Number
LM241148

Cup Part Number
LM241111

Design Unit
Inch

Cage Material
Stamped Steel


Dimensions

d - Bore
8.0310 in
203.987 mm

D - Cup Outer Diameter
10.875 in
276.225 mm

B - Cone Width
1.8125 in
46.038 mm

C - Cup Width
1.3438 in
34.133 mm

T - Bearing Width
1.6875 in
42.863 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.14 in
3.560 mm

r - Cup Backface "To Clear" Radius2
0.130 in
3.30 mm

da - Cone Frontface Backing Diameter
8.43 in
214.1 mm

db - Cone Backface Backing Diameter
8.66 in
220 mm

Da - Cup Frontface Backing Diameter
10.55 in
267.00 mm

Db - Cup Backface Backing Diameter
10.24 in
260.10 mm

Ab - Cage-Cone Frontface Clearance
0.07 in
1.8 mm

Aa - Cage-Cone Backface Clearance
0.05 in
1.3 mm

a - Effective Center Location3
0.07 in
1.8 mm
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
23600 lbf
105000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
90800 lbf
404000 N

C0 - Static Radial Rating
162000 lbf
721000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
12900 lbf
57200 N
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
1.83

e - ISO Factor2
0.32

Y - ISO Factor3
1.88

G1 - Heat Generation Factor (Roller-Raceway)
712.7

G2 - Heat Generation Factor (Rib-Roller End)
168.5

Cg - Geometry Factor4
0.114
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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