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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TS (Tapered Single) > Tapered Roller Bearings - TS (Tapered Single) Metric > Part Number JH211749A - JH211710  
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Part Number JH211749A - JH211710, Tapered Roller Bearings - TS (Tapered Single) Metric


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
H211700

Cone Part Number
JH211749A

Cup Part Number
JH211710

Design Unit
Metric

Cage Material
Stamped Steel


Dimensions

d - Bore
65 mm
2.5591 in

D - Cup Outer Diameter
120 mm
4.7244 in

B - Cone Width
38.500 mm
1.5157 in

C - Cup Width
32.000 mm
1.2598 in

T - Bearing Width
39.000 mm
1.5354 in


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
7.110 mm
0.280 in

r - Cup Backface "To Clear" Radius2
2.54 mm
0.1 in

da - Cone Frontface Backing Diameter
74 mm
2.91 in

db - Cone Backface Backing Diameter
88 mm
3.46 in

Da - Cup Frontface Backing Diameter
115.06 mm
4.53 in

Db - Cup Backface Backing Diameter
106.93 mm
4.21 in

Ab - Cage-Cone Frontface Clearance
4.1 mm
0.16 in

Aa - Cage-Cone Backface Clearance
0.5 mm
0.02 in

a - Effective Center Location3
-10.8 mm
-0.42 in
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
57800 N
13000 lbf

C1 - Dynamic Radial Rating (1 million revolutions)2
223000 N
50100 lbf

C0 - Static Radial Rating
283000 N
63600 lbf

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
33400 N
7500 lbf
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
1.73

e - ISO Factor2
0.34

Y - ISO Factor3
1.78

G1 - Heat Generation Factor (Roller-Raceway)
94

G2 - Heat Generation Factor (Rib-Roller End)
22.5

Cg - Geometry Factor4
0.0764
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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