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 LL713000

Cone Part Number

 N/A LL713049

Cup Part Number

 N/A LL713010

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

Related Assembly Number(s)

 N/A LL713049-90010 LL713049-90011

Dimensions

d - Bore

 N/A 2 3/4 in69.850 mm

D - Cup Outer Diameter

 N/A 3.8750 in98.425 mm

B - Cone Width

 N/A 0.5313 in13.495 mm

C - Cup Width

 N/A 0.3750 in9.525 mm

T - Bearing Width

 N/A 0.5313 in13.495 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 2.91 in74 mm

db - Cone Backface Backing Diameter

 N/A 3.03 in77 mm

Da - Cup Frontface Backing Diameter

 N/A 3.74 in94.00 mm

Db - Cup Backface Backing Diameter

 N/A 3.62 in91.95 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.08 in2 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.03 in0.8 mm
a - Effective Center Location3 N/A 0.18 in4.6 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 2350 lbf10500 N
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 9070 lbf40300 N

C0 - Static Radial Rating

 N/A 13100 lbf58100 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 1760 lbf7840 N

Factors

K - Factor7 N/A 1.33
e - ISO Factor8 N/A 0.44
Y - ISO Factor9 N/A 1.37

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 39.9

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 55
Cg - Geometry Factor10 N/A 0.0893
  • 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.