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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.
Unit of Measure

Key Dimensions

Rows per Set

 N/A Triplex

Design Units

 N/A Metric

Ball Type

 N/A Ceramic

Cage Type

 N/A CR - Phenolic Outer Land Riding Cage

Cage Material

 N/A MBR Cage

Precision Rating

 N/A ISO P4S (ABEC 7/9)

Manufacturing Part Number

 N/A 3MMC301WI TUM

Preload

 N/A Medium

Dimensions

D - Outer Diameter

 N/A 1.457 in

Bearing Width

 N/A 0.472 in

Total Width

 N/A 1.417 in

Contact Angle

 N/A 25 º

Basic Load Ratings

C0 - Static Radial Rating (per row)

 N/A 920 lbf4090 N
Ce - Dynamic Radial Rating (per row)1 N/A 2420 lbf10800 N

C1 ISO - Dynamic Radial Rating (per row)

 N/A 2200 lbf9820 N

Factors

Limiting Speed (Grease) (per row)

 N/A 51400 rpm

Limiting Speed (Oil)

 N/A 102800 rpm

Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius2 N/A 0.039 in
r - Outer Ring "To Clear" Radius3 N/A 0.039 in

da - Inner Ring Backing Diameter

 N/A 0.690 in

Da - Outer Ring Backing Diameter

 N/A 1.270 in
  • 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.