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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 M281635 - M281610  
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Part Number M281635 - M281610, 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
M281600

Cone Part Number
M281635

Cup Part Number
M281610

Design Unit
Inch

Cage Material
Pin-Type

Related Assembly Number(s)
M281635-90017


Dimensions

d - Bore
25.0000 in
635.000 mm

D - Cup Outer Diameter
36.7500 in
933.450 mm

B - Cone Width
7.0000 in
177.800 mm

C - Cup Width
5.5625 in
141.288 mm

T - Bearing Width
7.0625 in
179.388 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.470 in
11.900 mm

r - Cup Backface "To Clear" Radius2
0.250 in
6.35 mm

da - Cone Frontface Backing Diameter
27.05 in
687 mm

db - Cone Backface Backing Diameter
27.52 in
699 mm

Da - Cup Frontface Backing Diameter
35.20 in
894.08 mm

Db - Cup Backface Backing Diameter
34.25 in
869.95 mm

Ab - Cage-Cone Frontface Clearance
0.48 in
12.2 mm

Aa - Cage-Cone Backface Clearance
0.62 in
15.7 mm

a - Effective Center Location3
-0.53 in
-13.5 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
342000 lbf
1520000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
1320000 lbf
5860000 N

C0 - Static Radial Rating
3120000 lbf
13900000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
195000 lbf
865000 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
1.76

e - ISO Factor2
0.33

Y - ISO Factor3
1.8

G1 - Heat Generation Factor (Roller-Raceway)
17300

G2 - Heat Generation Factor (Rib-Roller End)
805

Cg - Geometry Factor4
0.334
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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