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Radial ball bearings consist of an inner and outer ring with a cage containing a complement of precision balls. The standard Conrad-type bearing has a deep-groove construction capable of handling radial and axial loads from either direction in versatile designs that permit relatively high-speed operation.

In addition to standard single-row deep groove bearings, Timken offers special designs, including a maximum capacity series and an extra large (XLS) radial series bearing.

Size range: 3 mm - 600 mm (0.12 in. - 23.62 in.) bore
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Unit of Measure

Key Dimensions

Design Units

 N/A Metric

Rows per Set

 N/A Single

d - Bore

 N/A 55 mm

Ball Type

 N/A STEEL

Cage Type

 N/A CR - Phenolic Inner Land Riding Cage

Precision Class

 N/A ISO P4S (ABEC 7/9)

Dimensions

D - Outer Diameter

 N/A 4.7244 in120 mm

Bearing Width

 N/A 1.1417 in29 mm

Basic Load Ratings

Ce - Dynamic Radial Rating (per row)1 N/A 17800 lbf79300 N

C0 - Static Radial Rating (per row)

 N/A 10000 lbf44600 N

C1 ISO - Dynamic Radial Rating (per row)

 N/A 16200 lbf72100 N

Factors

Limiting Speed (Grease) (per row)

 N/A 12500 rpm

Limiting Speed (Oil)

 N/A 25000 rpm

Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius2 N/A 0.079 in2.0 mm
r - Outer Ring "To Clear" Radius3 N/A 0.079 in2 mm

da - Inner Ring Backing Diameter

 N/A 2.630 in66.8 mm

Da - Outer Ring Backing Diameter

 N/A 4.280 in108.7 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.