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Timken® angular contact ball bearings are designed for combination radial and axial loading. Single-row bearings have high thrust capacity in one direction. Some single-row bearings are specifically designed for duplex mounting in sets for maximum performance.
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Unit of Measure

Key Dimensions

Rows per Set

 N/A Single

Design Units

 N/A Metric

Bore (d)

 N/A 44.5 mm

O.D. (D)

 N/A 3 in76.2 mm
Dynamic Radial Load Rating - 1M Revs (C1)1 N/A 8650 lbf38500 N

Ball Type

 N/A STEEL

Cage Type

 N/A CR - Phenolic Outer Land Riding Cage

Manufacturing Part Number

 N/A MM9311WI 3HSUH

Other Dimensions

Bearing Width

 N/A 0.625 in15.88 mm

Total Width

 N/A 0.625 in15.88 mm

Contact Angle

 N/A 60 º
Max Shaft Fillet Radius2 N/A 0.031 in0.8 mm

Shaft Backing Shoulder Diameter

 N/A 2.3402 in59.441 mm

Housing Backing Shoulder Diameter

 N/A 2.3846 in60.569 mm

Ratings

Static Radial Load Rating (C0)

 N/A 11400 lbf50700 N

Limiting Speed - Grease

 N/A 2100 rpm

Limiting Speed - Oil

 N/A 4200 rpm

C1 ISO - Dynamic Radial Rating (per row)

 N/A 7800 lbf34700 N

Abutment and Fillet Dimensions

r - Outer Ring "To Clear" Radius3 N/A 0.031 in0.8 mm
  • 1 Based on 106 revolutions of calculated fatigue life.
  • 2 Maximum housing fillet radius that bearing corners will clear.
  • 3 Maximum shaft fillet radius that bearing corners will clear.