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Timken Part Number M12649 - M12610, 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.

Tapered Roller Bearings - TS (Tapered Single)

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Tapered Roller Bearings - TS (Tapered Single) 2

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Unit of Measure: Imperial | Metric | Both 

Specifications · Dimensions · Abutment and Fillet Dimensions · Basic Load Ratings · Factors

Specifications

Series

M12600

Cone Part Number

M12649

Cup Part Number

M12610

Design Units

Imperial

Bearing Weight

0.40 lb
0.200 Kg

Cage Type

Stamped Steel


Dimensions

D - Cup Outer Diameter

1.9687 in
50.005 mm

d - Cone Bore

0.8437 in
21.430 mm

B - Cone Width

0.7200 in
18.288 mm

C - Cup Width

0.5500 in
13.970 mm

T - Bearing Width

0.6900 in
17.526 mm

Z - Number of Rollers Per Row

14


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1

0.050 in
1.270 mm

r - Cup Backface "To Clear" Radius2

0.050 in
1.27 mm

da - Cone Frontface Backing Diameter

1.08 in
27.43 mm

db - Cone Backface Backing Diameter

1.16 in
29.46 mm

Da - Cup Frontface Backing Diameter

1.83 in
46.48 mm

Db - Cup Backface Backing Diameter

1.73 in
43.94 mm

Ab - Cage-Cone Frontface Clearance

0.04 in
1.02 mm

Aa - Cage-Cone Backface Clearance

0.01 in
0.25 mm

a - Effective Center Location3

-0.25 in
-6.40 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

3040 lbf
13500 N

C1 - Dynamic Radial Rating (1 million revolutions)2

11700 lbf
52200 N

C0 - Static Radial Rating

9780 lbf
43500 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3

1450 lbf
6440 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

2.1

e - ISO Factor2

0.28

Y - ISO Factor3

2.16

G1 - Heat Generation Factor (Roller-Raceway)

9.1

G2 - Heat Generation Factor (Rib-Roller End)

5.63

Cg - Geometry Factor

0.0479
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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 DOWNLOADS 

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 width= Bearing Life Calculation Tool

 width= Bearing Dimensional Tolerances

 width= Tools and Guides for Engineers


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