Montage of Timken Bearing Products
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
Request Information Add to CAD Cart
This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.
Unit of Measure

Specifications

Series

 N/A 737000

Cone Part Number

 N/A EE737181X

Cup Part Number

 N/A 737262

Design Unit

 N/A Inch

Cage Material

 N/A Pin-Type

Related Assembly Number(s)

 N/A EE737181X-902A1

Dimensions

d - Bore

 N/A 18.0000 in457.200 mm

D - Cup Outer Diameter

 N/A 26.0 in660.400 mm

B - Cone Width

 N/A 3.5930 in91.262 mm

C - Cup Width

 N/A 2.5 in63.5 mm

T - Bearing Width

 N/A 3.6250 in92.075 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.25 in6.4 mm
r - Cup Backface "To Clear" Radius2 N/A 0.250 in6.35 mm

da - Cone Frontface Backing Diameter

 N/A 19.25 in489 mm

db - Cone Backface Backing Diameter

 N/A 19.49 in495 mm

Da - Cup Frontface Backing Diameter

 N/A 24.45 in621.03 mm

Db - Cup Backface Backing Diameter

 N/A 24.21 in614.93 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.16 in4.06 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.48 in12.19 mm
a - Effective Center Location3 N/A 0.66 in16.8 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 103000 lbf457000 N
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 396000 lbf1760000 N

C0 - Static Radial Rating

 N/A 816000 lbf3630000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 65700 lbf292000 N

Factors

K - Factor7 N/A 1.56
e - ISO Factor8 N/A 0.37
Y - ISO Factor9 N/A 1.6

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 4809.1

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 573.4
Cg - Geometry Factor10 N/A 0.225
  • 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 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 6 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.
  • 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.
  • 10 Geometry constant for Lubrication Life Adjustment Factor a3l.