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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TNA (Tapered Double, non-adjustable) Imperial > Part Number NA13687 - 13621D  
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Part Number NA13687 - 13621D, 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
NA13687

Cup Part Number
13621D

Related Assembly Number(s)
NA13687-90051

Design Unit
Inch


Dimensions

d - Bore
1 1/2 in
38.1 mm

D - Cup Outer Diameter
2.7170 in
69.012 mm

T - Bearing Width across Cones
1.8124 in
46.035 mm

C - Double Cup Width
1.5000 in
38.100 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.080 in
2 mm

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

db - Cone Backface Backing Diameter
1.83 in
46.5 mm

Da - Cup Frontface Backing Diameter
2.60 in
65.02 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
3920 lbf
17400 N

C1 - Dynamic Radial Rating (1 million revolutions)2
22200 lbf
98700 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
2700 lbf
12000 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)4
6820 lbf
30300 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
1.45

e - ISO Factor2
0.4

Y1 - ISO Factor3
1.68

Y2 - ISO Factor4
2.5
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.


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