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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

Specifications

Rows per Set

 N/A Single

Design Units

 N/A Metric

d - Bore

 N/A 20 mm

Ball Type

 N/A Ceramic

Cage Type

 N/A CR - Phenolic Outer Land Riding Cage

Precision Rating

 N/A ISO P4S (ABEC 7/9)

Manufacturing Part Number

 N/A 2MMC304WI SUH

Dimensions

D - Outer Diameter

 N/A 52 mm2.0472 in

Bearing Width

 N/A 15 mm0.5906 in

Total Width

 N/A 15 mm0.5906 in

Contact Angle

 N/A 15 º

Basic Load Ratings

C0 - Static Radial Rating (per row)

 N/A 8900 N2000 lbf
Ce - Dynamic Radial Rating (per row)1 N/A 21500 N4840 lbf

C1 ISO - Dynamic Radial Rating (per row)

 N/A 19500 N4400 lbf

Factors

Limiting Speed (Grease) (per row)

 N/A 38600 rpm

Limiting Speed (Oil)

 N/A 77200 rpm

Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius2 N/A 1 mm0.039 in
r - Outer Ring "To Clear" Radius3 N/A 1 mm0.039 in

da - Inner Ring Backing Diameter

 N/A 29.9 mm1.180 in

Da - Outer Ring Backing Diameter

 N/A 46.6 mm1.840 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.
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