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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 HM164646 - HM164615  
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Part Number HM164646 - HM164615, 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
HM164600

Cone Part Number
HM164646

Cup Part Number
HM164615

Design Unit
Inch

Cage Material
Pin-Type


Dimensions

d - Bore
13.6250 in
346.075 mm

D - Cup Outer Diameter
21.5000 in
546.1 mm

B - Cone Width
3.7500 in
95.250 mm

C - Cup Width
3 in
76.2 mm

T - Bearing Width
3.6875 in
93.663 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.25 in
6.35 mm

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

da - Cone Frontface Backing Diameter
14.69 in
373 mm

db - Cone Backface Backing Diameter
15.08 in
383 mm

Da - Cup Frontface Backing Diameter
20.08 in
507.00 mm

Db - Cup Backface Backing Diameter
19.96 in
506.98 mm

Ab - Cage-Cone Frontface Clearance
0.36 in
9.1 mm

Aa - Cage-Cone Backface Clearance
0 in
0 mm

a - Effective Center Location3
-0.61 in
-15.5 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
157000 lbf
696000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
604000 lbf
2690000 N

C0 - Static Radial Rating
897000 lbf
3990000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
65500 lbf
291000 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
2.39

e - ISO Factor2
0.24

Y - ISO Factor3
2.46

G1 - Heat Generation Factor (Roller-Raceway)
3841.3

G2 - Heat Generation Factor (Rib-Roller End)
316.9

Cg - Geometry Factor4
0.183
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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