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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 J90354 - J90748  
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Part Number J90354 - J90748, 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
90000

Cone Part Number
J90354

Cup Part Number
J90748

Design Unit
Metric

Cage Material
Stamped Steel

Related Assembly Number(s)
J90354-90K02
J90354-90K03


Dimensions

d - Bore
90 mm
3.5433 in

D - Cup Outer Diameter
190 mm
7.4803 in

B - Cone Width
46.038 mm
1.8125 in

C - Cup Width
31.750 mm
1.2500 in

T - Bearing Width
50.800 mm
2.0000 in


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
3.560 mm
0.14 in

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

da - Cone Frontface Backing Diameter
111.8 mm
4.4 in

db - Cone Backface Backing Diameter
120 mm
4.72 in

Da - Cup Frontface Backing Diameter
180.09 mm
7.09 in

Db - Cup Backface Backing Diameter
162.05 mm
6.38 in

Ab - Cage-Cone Frontface Clearance
4.1 mm
0.16 in

Aa - Cage-Cone Backface Clearance
9.9 mm
0.39 in

a - Effective Center Location3
12.7 mm
0.5 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
99300 N
22300 lbf

C1 - Dynamic Radial Rating (1 million revolutions)2
383000 N
86100 lbf

C0 - Static Radial Rating
392000 N
88100 lbf

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
147000 N
33100 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
0.67

e - ISO Factor2
0.87

Y - ISO Factor3
0.69

G1 - Heat Generation Factor (Roller-Raceway)
150

G2 - Heat Generation Factor (Rib-Roller End)
23.8

Cg - Geometry Factor4
0.118
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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