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 365

Cone Part Number

 N/A 369AS

Cup Part Number

 N/A 363

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

Dimensions

d - Bore

 N/A 1 7/8 in47.625 mm

D - Cup Outer Diameter

 N/A 3.5433 in90 mm

B - Cone Width

 N/A 0.875 in22.225 mm

C - Cup Width

 N/A 0.7874 in20.000 mm

T - Bearing Width

 N/A 0.7875 in20.003 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.09 in2.300 mm
r - Cup Backface "To Clear" Radius2 N/A 0.030 in0.76 mm

da - Cone Frontface Backing Diameter

 N/A 2.24 in57 mm

db - Cone Backface Backing Diameter

 N/A 2.24 in57 mm

Da - Cup Frontface Backing Diameter

 N/A 3.35 in85.09 mm

Db - Cup Backface Backing Diameter

 N/A 3.23 in82.04 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.07 in1.8 mm

Aa - Cage-Cone Backface Clearance

 N/A 0 in0 mm
a - Effective Center Location3 N/A -0.17 in-4.3 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 5930 lbf26400 N
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 22900 lbf102000 N

C0 - Static Radial Rating

 N/A 21500 lbf95800 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 3250 lbf14400 N

Factors

K - Factor7 N/A 1.83
e - ISO Factor8 N/A 0.32
Y - ISO Factor9 N/A 1.88

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 33.8

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 14
Cg - Geometry Factor10 N/A 0.0773
  • 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.