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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
    • Improved bearing performance in extreme operating conditions, minimizing impact of contaminants that can get caught in the bearing's roller and cage due to an enhanced cage bridge design
    • Extend bearing life in applications with extreme shock/vibration, high gravitational forces and minimal lubrication conditions due to the extra strength and durability provided by our machined brass cage
Unit of Measure

Key Dimensions

Bore (d)

 N/A 300 mm

O.D. (D)

 N/A 540 mm21.2600 in

Width (B)

 N/A 140 mm5.512 in

Dynamic Radial Load Rating - 1M Revs (C1)

 N/A 3290000 N740000 lbf
e Factor1 N/A 0.26

Other Dimensions

Max Shaft Fillet Radius2 N/A 4 mm0.160 in

Shaft Backing Shoulder Diameter

 N/A 355.000 mm14.000 in

Housing Backing Shoulder Diameter

 N/A 484.000 mm19.100 in

Design Unit

 N/A Metric

Ratings

Static Radial Load Rating (C0)

 N/A 4400000 N989000 lbf

Thermal Reference Speed - Grease 

 N/A 870 rpm
Thermal Reference Speed - Oil3 N/A 1000 rpm

Factors

Y0 Factor4 N/A 2.53
Y1 Factor 5 N/A 2.59
Y2 Factor 6 N/A 3.86
Geometry Factor (Cg)7 N/A 0.1283
  • 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.