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Part Number 36137, Tapered Roller Bearings - Single Cones - Imperial

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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  · Basic Load Ratings  · Factors

Specifications

Cone Part Number
36137

Design Units
Imperial

Cage Type
Stamped Steel

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1
39100 lbf
174000 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2
10100 lbf
45100 N
1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
2 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.


Dimensions

d - Cone Bore
1 3/8 in
34.925 mm

B - Cone Width
1.1750 in
29.845 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.06 in
1.520 mm

da - Cone Frontface Backing Diameter
1.67 in
42.5 mm

db - Cone Backface Backing Diameter
1.77 in
45 mm

Ab - Cage-Cone Frontface Clearance
0.05 in
1.3 mm

Aa - Cage-Cone Backface Clearance
0.03 in
0.8 mm

a - Effective Center Location2
-0.36 in
-9.1 mm
1 These maximum fillet radii will be cleared by the bearing corners.
2 Negative value indicates effective center inside cone backface.


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)1
5820 lbf
25900 N

C1 - Dynamic Radial Rating (1 million revolutions)2
22500 lbf
99900 N

C0 - Static Radial Rating
24900 lbf
111000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
3490 lbf
15500 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
1.67

G1 - Heat Generation Factor (Roller-Raceway)
26.7

G2 - Heat Generation Factor (Rib-Roller End)
10.5

Cg - Geometry Factor2
0.0741
1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
2 Geometry constant for Lubrication Life Adjustment Factor a3l.



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Tapered Roller Bearing Engineering Information
(PDF, 663KB)

Bearing Life Calculation Tool

Bearing Dimensional Tolerances