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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 39590 - 39521 (K326056R - K326057R)  
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Part Number 39590 - 39521 (K326056R - K326057R), 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
39590

Cup Part Number
39521

Inner Spacer Part Number
K326056R

Outer Spacer Part Number
K326057R

Design Unit
Inch


Dimensions

d - Bore
2.6250 in
66.675 mm

D - Cup Outer Diameter
4.4375 in
112.713 mm

T - Width
2.625 in
66.675 mm

C - Width
2.1250 in
53.975 mm

Snap Ring Diameter
4.60 in
116.74 mm

Snap Ring Width
0.25 in
6.35 mm


Abutment and Fillet Dimensions

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

r - Cup Backface "To Clear" Radius2
0.030 in
0.76 mm

db - Cone Backface Backing Diameter
3.23 in
82 mm

Da - Cup Frontface Backing Diameter
4.25 in
107.95 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)
9730 lbf
43300 N

C1 - Dynamic Radial Rating (1 million revolutions)1
65300 lbf
291000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)2
5650 lbf
25100 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)3
16900 lbf
75400 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
1.72

e - ISO Factor2
0.34

Y1 - ISO Factor3
1.99

Y2 - ISO Factor4
2.96
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

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Tapered Roller Bearings - 2TS (Matched Bearing Assembly)

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