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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• 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

Design Unit

 N/A Metric

Bore (d)

 N/A 150 mm

O.D. (D)

 N/A 270 mm10.6299 in

B' - Inner Ring Width

 N/A 73 mm2.874 in

B - Outer Ring Width

 N/A 73 mm2.8740 in

Dynamic Radial Load Rating - 1M Revs (C1)

 N/A 1230000 N276000 lbf
e Factor1 N/A 0.25

Factors

Maximum Operating Speed

 N/A 400 rpm
Y0 Factor2 N/A 2.63
Y1 Factor 3 N/A 2.69
Y2 Factor4 N/A 4
Geometry Factor (Cg)5 N/A 0.0899

Dimensions

R - Inner Ring "To Clear" Radius6 N/A 2.5 mm0.100 in
r - Outer Ring "To Clear" Radius7 N/A 2.5 mm0.1 in

Shaft Backing Shoulder Diameter

 N/A 179.0 mm7.0000 in

Housing Backing Shoulder Diameter

 N/A 246 mm9.7000 in

Basic Load Ratings

Static Radial Load Rating (C0)

 N/A 1000000 N225000 lbf

Thermal Reference Speed - Grease

 N/A 2000 rpm
Thermal Reference Speed - Oil8 N/A 2400 rpm
  • 1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 2 These factors apply for both inch and metric calculations. See engineering
  • 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. Consult your Timken representative for instruction on use.
  • 5 Geometry constant for Lubrication Life Adjustment Factor a3l.
  • 6 Maximum housing fillet radius that bearing corners will clear.
  • 7 These maximum fillet radii will be cleared by the bearing corners.
  • 8 See thermal speed ratings in the engineering section.