Aurora Bearing Company
Aurora Bearing Company
901 Aucutt Rd.
Montgomery, IL 60538
Phone: 630.859.2030 • Fax: 630.859.0971
Email: customersupport@aurorabearing.com • Website: www.aurorabearing.com
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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 420 mm16.535 in

Width (B)

 N/A 90 mm3.543 in

Bore_Taper

 N/A 1/12

Dynamic Radial Load Rating - 1M Revs (C1)

 N/A 1570000 N352000 lbf
e Factor1 N/A 0.19

Other Dimensions

Max Shaft Fillet Radius2 N/A 2.5 mm0.100 in

Shaft Backing Shoulder Diameter

 N/A 328.000 mm12.900 in

Housing Backing Shoulder Diameter

 N/A 394.000 mm15.500 in

Design Unit

 N/A Metric

Ratings

Static Radial Load Rating (C0)

 N/A 2630000 N592000 lbf

Thermal Reference Speed - Grease 

 N/A 980 rpm
Thermal Reference Speed - Oil3 N/A 1200 rpm

Factors

Y0 Factor4 N/A 3.51
Y1 Factor 5 N/A 3.59
Y2 Factor 6 N/A 5.34
Geometry Factor (Cg)7 N/A 0.1211
  • 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.