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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 65 mm

O.D. (D)

 N/A 140 mm5.5118 in

B' - Inner Ring Width

 N/A 33 mm1.2992 in

B - Outer Ring Width

 N/A 33 mm1.2992 in

Dynamic Radial Load Rating - 1M Revs (C1)

 N/A 259000 N58200 lbf
e Factor1 N/A 0.23

Factors

Maximum Operating Speed

 N/A 830 rpm
Y0 Factor2 N/A 2.87
Y1 Factor 3 N/A 2.94
Y2 Factor4 N/A 4.37
Geometry Factor (Cg)5 N/A 0.0569

Dimensions

R - Inner Ring "To Clear" Radius6 N/A 2.0 mm0.080 in
r - Outer Ring "To Clear" Radius7 N/A 2 mm0.08 in

Shaft Backing Shoulder Diameter

 N/A 86.000 mm3.400 in

Housing Backing Shoulder Diameter

 N/A 126.000 mm5.0000 in

Basic Load Ratings

Static Radial Load Rating (C0)

 N/A 254000 N57100 lbf

Thermal Reference Speed - Grease

 N/A 2300 rpm
Thermal Reference Speed - Oil8 N/A 2800 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.