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 341000

Cone Part Number

 N/A EE341048

Cup Part Number

 N/A 341096

Design Unit

 N/A Inch

Cage Material

 N/A Pin-Type

Dimensions

d - Bore

 N/A 4.7500 in120.650 mm

D - Cup Outer Diameter

 N/A 9.6250 in244.475 mm

B - Cone Width

 N/A 2.3437 in59.530 mm

C - Cup Width

 N/A 1.4375 in36.513 mm

T - Bearing Width

 N/A 2.2500 in57.150 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.25 in6.35 mm
r - Cup Backface "To Clear" Radius2 N/A 0.130 in3.30 mm

da - Cone Frontface Backing Diameter

 N/A 5.31 in135 mm

db - Cone Backface Backing Diameter

 N/A 5.79 in147 mm

Da - Cup Frontface Backing Diameter

 N/A 8.90 in226.06 mm

Db - Cup Backface Backing Diameter

 N/A 8.70 in220.98 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.03 in0.76 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.36 in9.14 mm
a - Effective Center Location3 N/A -0.31 in-7.9 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 29600 lbf132000 N
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 114000 lbf508000 N

C0 - Static Radial Rating

 N/A 140000 lbf622000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 21500 lbf95600 N

Factors

K - Factor7 N/A 1.38
e - ISO Factor8 N/A 0.42
Y - ISO Factor9 N/A 1.42

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 285.8

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 43.6
Cg - Geometry Factor10 N/A 0.117
  • 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.