All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TS (Tapered Single) > Tapered Roller Bearings - TS (Tapered Single) Metric > Part Number XA30215 - Y30215  

Part Number XA30215 - Y30215, Tapered Roller Bearings - TS (Tapered Single) Metric


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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

Series

30215M

Cone Part Number

XA30215M

Cup Part Number

Y30215M

Design Unit

Metric

Cage Material

Stamped Steel

Related Assembly Number(s)

30215-9X025
30215-9X245


Dimensions

d - Bore

75 mm
2.9528
in

D - Cup Outer Diameter

130 mm
5.1181
in

B - Cone Width

25.000 mm
0.9843
in

C - Cup Width

22.000 mm
0.8661
in

T - Bearing Width

27.250 mm
1.0728
in


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1

2.030 mm
0.08
in

r - Cup Backface "To Clear" Radius2

1.52 mm
0.06
in

da - Cone Frontface Backing Diameter

85 mm
3.35
in

db - Cone Backface Backing Diameter

88 mm
3.46
in

Da - Cup Frontface Backing Diameter

124.00 mm
4.89
in

Db - Cup Backface Backing Diameter

119.89 mm
4.72
in

Ab - Cage-Cone Frontface Clearance

4.6 mm
0.18
in

Aa - Cage-Cone Backface Clearance

1.3 mm
0.05
in

a - Effective Center Location3

0 mm
0
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

46800 N
10500
lbf

C1 - Dynamic Radial Rating (1 million revolutions)2

181000 N
40600
lbf

C0 - Static Radial Rating

180000 N
40400
lbf

Ca90 - Dynamic Thrust Rating (90 million revolutions)3

34900 N
7840
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

1.34

e - ISO Factor2

0.44

Y - ISO Factor3

1.38

G1 - Heat Generation Factor (Roller-Raceway)

74.3

G2 - Heat Generation Factor (Rib-Roller End)

23.5

Cg - Geometry Factor4

0.0716
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