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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TNA (Tapered Double, non-adjustable) Imperial > Part Number NA53176 - 53376D  
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Part Number NA53176 - 53376D, Tapered Roller Bearings - TNA (Tapered Double, non-adjustable) Imperial






Unit of Measure: Imperial Metric Both

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

Specifications

Cone Part Number
NA53176

Cup Part Number
53376D

Design Unit
Inch


Dimensions

d - Bore
1 3/4 in
44.450 mm

D - Cup Outer Diameter
3.7500 in
95.250 mm

T - Bearing Width across Cones
2.5626 in
65.090 mm

C - Double Cup Width
1.7500 in
44.450 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.09 in
2.300 mm

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

db - Cone Backface Backing Diameter
2.4 in
61 mm

Da - Cup Frontface Backing Diameter
3.54 in
89.90 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
5840 lbf
26000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
39200 lbf
174000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
7390 lbf
32900 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)4
10200 lbf
45200 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
0.79

e - ISO Factor2
0.74

Y1 - ISO Factor3
0.91

Y2 - ISO Factor4
1.36
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

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