The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.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
  • 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 brass cage
Unit of Measure

Key Dimensions

Design Unit

 N/A Metric

Bore (d)

 N/A 670 mm

O.D. (D)

 N/A 38.583 in980 mm

Width (B)

 N/A 9.0550 in230 mm

Dynamic Radial Load Rating - 1M Revs (C1)

 N/A 1770000 lbf7890000 N
e Factor 1 N/A 0.22

Cage Type

 N/A YMB

Cage Material

 N/A Brass

Other Dimensions

Max Shaft Fillet Radius2 N/A 0.24 in6 mm

Shaft Backing Shoulder Diameter

 N/A 744.000 mm29.300 in

Housing Backing Shoulder Diameter

 N/A 911.000 mm35.9000 in

Ratings

Static Radial Load Rating (C0)

 N/A 3540000 lbf15800000 N

Thermal Reference Speed - Grease 

 N/A 340 rpm
Thermal Reference Speed - Oil 3 N/A 380 rpm

Factors

Y0 Factor4 N/A 3.05
Y1 Factor 5 N/A 3.12
Y2 Factor6 N/A 4.65
Geometry Factor (Cg) 7 N/A 0.1257
  • 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.