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

Cup Part Number

 N/A LM282519

O.D. (D)

 N/A 39.3661 in999.899 mm

Outer Ring Width (C)

 N/A 4.6875 in119.063 mm
e Factor 1 N/A 0.33

Other Dimensions

Weight

 N/A 351.400 Kg774.80 lb
Max Housing Fillet Radius2 N/A 0.250 in6.35 mm

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 35.91 in912.10 mm

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 35.79 in909.07 mm

Factors

Geometry Factor (Cg)3 N/A 0.332
  • 1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 2 These maximum fillet radii will be cleared by the bearing corners.
  • 3 Geometry constant for Lubrication Life Adjustment Factor a3l.