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 180000

Cone Part Number

 N/A EE181453

Cup Part Number

 N/A 182350

Design Unit

 N/A Inch

Cage Material

 N/A Pin-Type

Related Assembly Number(s)

 N/A EE181453-90021 EE181453-90030

Dimensions

d - Bore

 N/A 14.5000 in368.3 mm

D - Cup Outer Diameter

 N/A 23.5000 in596.9 mm

B - Cone Width

 N/A 3.6250 in92.075 mm

C - Cup Width

 N/A 2.3750 in60.325 mm

T - Bearing Width

 N/A 3.7500 in95.250 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.380 in9.700 mm
r - Cup Backface "To Clear" Radius2 N/A 0.250 in6.35 mm

da - Cone Frontface Backing Diameter

 N/A 15.83 in402 mm

db - Cone Backface Backing Diameter

 N/A 16.34 in415 mm

Da - Cup Frontface Backing Diameter

 N/A 21.97 in558.04 mm

Db - Cup Backface Backing Diameter

 N/A 21.73 in551.94 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.36 in9.1 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.66 in16.8 mm
a - Effective Center Location3 N/A 0.37 in9.4 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 103000 lbf460000 N
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 399000 lbf1770000 N

C0 - Static Radial Rating

 N/A 680000 lbf3030000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 73400 lbf326000 N

Factors

K - Factor7 N/A 1.41
e - ISO Factor8 N/A 0.41
Y - ISO Factor9 N/A 1.45

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 2961.8

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 271.9
Cg - Geometry Factor10 N/A 0.198
  • 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.