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 2600

Cone Part Number

 N/A 2683

Cup Part Number

 N/A 2630

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

Dimensions

d - Bore

 N/A 15/16 in23.813 mm

D - Cup Outer Diameter

 N/A 2.4843 in63.101 mm

B - Cone Width

 N/A 1.0013 in25.433 mm

C - Cup Width

 N/A 0.7500 in19.050 mm

T - Bearing Width

 N/A 0.9377 in23.818 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.03 in0.800 mm
r - Cup Backface "To Clear" Radius2 N/A 0.030 in0.76 mm

da - Cone Frontface Backing Diameter

 N/A 1.38 in35 mm

db - Cone Backface Backing Diameter

 N/A 1.32 in33.5 mm

Da - Cup Frontface Backing Diameter

 N/A 2.34 in59.44 mm

Db - Cup Backface Backing Diameter

 N/A 2.24 in56.90 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.06 in1.5 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.01 in0.3 mm
a - Effective Center Location3 N/A -0.37 in-9.4 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 4470 lbf19900 N
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 17200 lbf76600 N

C0 - Static Radial Rating

 N/A 18400 lbf81700 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 1940 lbf8640 N

Factors

K - Factor7 N/A 2.3
e - ISO Factor8 N/A 0.25
Y - ISO Factor9 N/A 2.36

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 19.3

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 8
Cg - Geometry Factor10 N/A 0.0598
  • 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.