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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

Key Dimensions

Cone Part Number

 N/A LM67048

Cup Part Number

 N/A LM67010

Seal Part Number

 N/A LM67000LA

Bore (d)

 N/A 1 1/4 in31.750 mm

O.D. (D)

 N/A 2.3280 in59.131 mm

Width (T)

 N/A 0.625 in15.875 mm
Dynamic Radial Load Rating - 90M Revs (C90) 1 N/A 2720 lbf12100 N
Dynamic Radial Load Rating - 1M Revs (C1) 2 N/A 10500 lbf46700 N
e Factor 3 N/A 0.41
Y Factor 4 N/A 1.46
K Factor 5 N/A 1.42

Other Dimensions

Weight

 N/A 0.39 lb0.18 Kg

Inner Ring Width (B)

 N/A 0.6600 in16.764 mm

Outer Ring Width (C)

 N/A 0.4650 in11.811 mm

Total Width (T1)

 N/A 0.7 in17.78 mm
Effective Center Location6 N/A -0.12 in-3 mm
Max Shaft Fillet Radius7 N/A 0.140 in3.600 mm
Max Housing Fillet Radius8 N/A 0.050 in1.27 mm

Shaft Backing Shoulder Dia. - Frontface (da)

 N/A 1.42 in36 mm

Shaft Backing Shoulder Dia. - Backface (db)

 N/A 1.67 in42.5 mm

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 2.24 in55.90 mm

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 2.05 in52.07 mm

Cage Location rel. to BF (Aa)

 N/A 0.05 in1.3 mm

Cage Location rel. to FF (Ab)

 N/A 0.01 in0.3 mm

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)9 N/A 1920 lbf8550 N

Static Radial Load Rating (C0)

 N/A 10000 lbf44600 N

Factors

Y1 Factor 10 N/A 1.64
Y2 Factor 11 N/A 2.44

G1 Factor

 N/A 12.8

G2 Factor

 N/A 9.93
Geometry Factor (Cg)12 N/A 0.0612
  • 1 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 2 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 3 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 4 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 5 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 6 Negative value indicates effective center inside cone backface.
  • 7 These maximum fillet radii will be cleared by the bearing corners.
  • 8 These maximum fillet radii will be cleared by the bearing corners.
  • 9 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.
  • 10 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 11 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 12 Geometry constant for Lubrication Life Adjustment Factor a3l.