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Part Number NA17098 - 17245D, Tapered Roller Bearings - TNA (Tapered Double, non-adjustable) Imperial

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

Specifications

Cone Part Number
NA17098

Cup Part Number
17245D

Design Unit
Inch


Dimensions

d - Bore
0.9835 in
24.981 mm

D - Cup Outer Diameter
2.4409 in
61.999 mm

T - Bearing Width across Cones
1.5625 in
39.688 mm

C - Double Cup Width
1.4275 in
36.259 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.06 in
1.5 mm

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

db - Cone Backface Backing Diameter
1.30 in
33.0 mm

Da - Cup Frontface Backing Diameter
2.26 in
57.40 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)1
2520 lbf
11200 N

C1 - Dynamic Radial Rating (1 million revolutions)2
16900 lbf
75300 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
1650 lbf
7340 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)4
4390 lbf
19500 N
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.
4 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
1.53

e - ISO Factor2
0.38

Y1 - ISO Factor3
1.77

Y2 - ISO Factor4
2.63
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-TNA-cutaway-angle-view

·  timken-TNA-left-angle-view

·  Timken TRB TNA



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