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Part Number NA366 - 363D, 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
NA366

Cup Part Number
363D

Related Assembly Number(s)
NA366-90029

Design Unit
Inch


Dimensions

d - Bore
1.9685 in
50 mm

D - Cup Outer Diameter
3.5433 in
90 mm

T - Bearing Width across Cones
1.9689 in
50.01 mm

C - Double Cup Width
1.6563 in
42.070 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.14 in
3.5 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
3.34 in
84.84 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
5930 lbf
26400 N

C1 - Dynamic Radial Rating (1 million revolutions)2
39900 lbf
177000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
3250 lbf
14400 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)4
10300 lbf
46000 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
1.83

e - ISO Factor2
0.32

Y1 - ISO Factor3
2.11

Y2 - ISO Factor4
3.14
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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