NA56425 SW - 56650 CD Timken Tapered Roller Bearing SET with CE-7009 Clark Seals

The configuration of the TDO provides a wide effective bearing spread, making it ideal for applications in which overturning moments are a significant load component. TDO bearings can be used in fixed positions or allowed to float in the housing bore.
Unit of Measure 

Specifications

Series

56000

Cone Part Number

NA56425SW

Cup Part Number

56650CD

Design Unit

Inch

Cage Material

Stamped Steel

Dimensions

d - Bore

4.25 in107.95 mm

D - Cup Outer Diameter

6 1/2 in165.1 mm

B - Cone Width

1.75 in44.45 mm

C - Double Cup Width

2.5 in63.5 mm

T - Bearing Width across Cones

3.5000 in88.900 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius10.14 in3.556 mm
r - Cup Backface "To Clear" Radius20.030 in0.8 mm

db - Cone Backface Backing Diameter

4.84 in123 mm

Da - Cup Frontface Backing Diameter

6.30 in160.00 mm

Aa - Cage-Cone Backface Clearance

0.27 in6.9 mm
a - Effective Center Location3-0.05 in-1.3 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)413200 lbf58700 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)511200 lbf50000 N

Factors

K - Factor61.18
e - ISO Factor70.5
Y1 - ISO Factor81.36
Y2 - ISO Factor92.02
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 These maximum fillet radii will be cleared by the bearing corners.
  • 3 Negative value indicates effective center inside cone backface.
  • 4 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 5 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.
  • 6 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 7 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.