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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - 2TS (Matched Bearing Assembly) > Tapered Roller Bearings - 2S (Matched Bearing Assembly, with snap ring spacer) > Part Number A4059 - A4138 (X5SA4059 - K524667R)  
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Part Number A4059 - A4138 (X5SA4059 - K524667R), Tapered Roller Bearings - 2S (Matched Bearing Assembly, with snap ring spacer)


Tapered Roller Bearings - 2S (Matched Bearing Assembly, with snap ring spacer)



Unit of Measure: Imperial Metric Both

Specifications  · Dimensions  · Abutment and Fillet Dimensions  · Basic Load Ratings  · Factors

Specifications

Cone Part Number
A4059

Cup Part Number
A4138

Inner Spacer Part Number
X5SA4059

Outer Spacer Part Number
K524667R

Design Unit
Inch


Dimensions

d - Bore
0.5901 in
14.989 mm

D - Cup Outer Diameter
1.3775 in
34.989 mm

T - Width
0.9660 in
24.536 mm

C - Width
0.7874 in
20.000 mm

Snap Ring Diameter
1.43 in
36.35 mm

Snap Ring Width
0.10 in
2.54 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.03 in
0.800 mm

r - Cup Backface "To Clear" Radius2
0.050 in
1.27 mm

db - Cone Backface Backing Diameter
0.77 in
19.5 mm

Da - Cup Frontface Backing Diameter
1.28 in
32.51 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.


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)
767 lbf
3410 N

C1 - Dynamic Radial Rating (1 million revolutions)1
5150 lbf
22900 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)2
594 lbf
2640 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)3
1330 lbf
5940 N
1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
2 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.
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
1.29

e - ISO Factor2
0.45

Y1 - ISO Factor3
1.49

Y2 - ISO Factor4
2.22
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 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.


 MORE IMAGES 

·  timken-2TS-IMSS-SR-cutaway-angle-view

·  timken-2TS-IMSS-SR-left-angle-view

·  Timken TRB 2S



 DOWNLOADS 

Bearing Life Calculation Tool

Bearing Dimensional Tolerances

Tools and Guides for Engineers


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