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

Specifications

Design Unit

 N/A Metric

d - Bore

 N/A 60 mm

Bore_Taper

 N/A 1/12

Cage Type

 N/A EM

UPC Code

 N/A 087796233881

Cage Material

 N/A Brass

Superseded Part

 N/A 22312KYMW33W800C4

Dimensions

D - Outer Diameter

 N/A 5.1178 in129.993 mm

B' - Inner Ring Width

 N/A 1.8110 in46 mm

B - Outer Ring Width

 N/A 1.8110 in46 mm

Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius1 N/A 0.080 in2.0 mm
r - Outer Ring "To Clear" Radius2 N/A 0.08 in2 mm

da - Inner Ring Backing Diameter

 N/A 77 mm3.000 in

Da - Outer Ring Backing Diameter

 N/A 117 mm4.600 in

Basic Load Ratings

C0 - Static Radial Rating

 N/A 69000 lbf307000 N

C1(2) - Dynamic Radial Rating (Two-Rows)

 N/A 68800 lbf306000 N

Factors

e - ISO Factor3 N/A 0.34
Y0 - ISO Factor4 N/A 1.93
Y1 - ISO Factor5 N/A 1.98
Y2 - ISO Factor6 N/A 2.94

Reference Thermal Speed Rating (Grease)

 N/A 4200 rpm
Reference Thermal Speed Rating (Oil)7 N/A 5000 rpm
Cg - Geometry Factor8 N/A 0.0532
  • 1 Maximum housing fillet radius that bearing corners will clear.
  • 2 Maximum shaft fillet radius that bearing corners will clear.
  • 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. 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 See thermal speed ratings in the engineering section.
  • 8 Geometry constant for Lubrication Life Adjustment Factor a3l.