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Key Features
    • Longer bearing life achieved from higher capacity (vs. competitors)
    • Longer lubrication life achieved from lower operating temperatures due to reduced internal friction and running torque from cage guided rollers
    • Better contaminant purging from slots on cage face helps extend bearing life
    • Greater fatigue strength and increased wear resistance provide tougher protection against shock and acceleration loading from a hardened steel cage
Unit of Measure

Key Dimensions

Bore (d)

 N/A 320 mm

O.D. (D)

 N/A 480 mm18.898 in

Width (B)

 N/A 121 mm4.7640 in

Dynamic Radial Load Rating - 1M Revs (C1)

 N/A 2410000 N543000 lbf
e Factor1 N/A 0.23

Other Dimensions

Max Shaft Fillet Radius2 N/A 3 mm0.120 in

Shaft Backing Shoulder Diameter

 N/A 355.000 mm14.000 in

Housing Backing Shoulder Diameter

 N/A 444.000 mm17.5000 in

Design Unit

 N/A Metric

Ratings

Static Radial Load Rating (C0)

 N/A 3880000 N873000 lbf
Thermal Reference Speed - Oil3 N/A 1000 rpm

Thermal Reference Speed - Grease

 N/A 890 rpm

Factors

Y0 Factor4 N/A 2.86
Y1 Factor 5 N/A 2.93
Y2 Factor6 N/A 4.36
Geometry Factor (Cg)7 N/A 0.1278
  • 1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 2 Maximum housing fillet radius that bearing corners will clear.
  • 3 See thermal speed ratings in the engineering section.
  • 4 These factors apply for both inch and metric calculations. See engineering
  • 5 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 6 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 7 Geometry constant for Lubrication Life Adjustment Factor a3l.