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 LL735400

Cone Part Number

 N/A LL735448

Cup Part Number

 N/A LL735410

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

Dimensions

d - Bore

 N/A 7 in177.800 mm

D - Cup Outer Diameter

 N/A 8.5000 in215.900 mm

B - Cone Width

 N/A 0.9375 in23.813 mm

C - Cup Width

 N/A 0.5938 in15.083 mm

T - Bearing Width

 N/A 0.8125 in20.638 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.06 in1.520 mm
r - Cup Backface "To Clear" Radius2 N/A 0.06 in1.52 mm

da - Cone Frontface Backing Diameter

 N/A 7.24 in184 mm

db - Cone Backface Backing Diameter

 N/A 7.32 in186 mm

Da - Cup Frontface Backing Diameter

 N/A 8.38 in212.10 mm

Db - Cup Backface Backing Diameter

 N/A 8.15 in207.01 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.02 in0.5 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.01 in0.3 mm
a - Effective Center Location3 N/A 0.7 in17.8 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 7030 lbf31300 N
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 27100 lbf121000 N

C0 - Static Radial Rating

 N/A 55500 lbf247000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 5420 lbf24100 N

Factors

K - Factor7 N/A 1.3
e - ISO Factor8 N/A 0.45
Y - ISO Factor9 N/A 1.33

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 341.1

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 237.7
Cg - Geometry Factor10 N/A 0.182
  • 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.