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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
Unit of Measure

Specifications

Design Units

 N/A Metric

d - Bore

 N/A 9 mm

Ball Type

 N/A STEEL

Manufacturing Part Number

 N/A 39KDD Z1 FS50000

Dimensions

D - Outer Diameter

 N/A 26 mm1.024 in

Bearing Width

 N/A 8 mm0.315 in

Basic Load Ratings

Ce - Dynamic Radial Rating1 N/A 5080 N1140 lbf

C0 - Static Radial Rating

 N/A 1970 N440 lbf

Factors

Limiting Speed (Grease)

 N/A 16668 rpm

Limiting Speed (Oil)

 N/A 19446 rpm

Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius2 N/A 0.04 mm1 in
r - Outer Ring "To Clear" Radius3 N/A 0.04 mm1.000 in

da - Inner Ring Backing Diameter

 N/A 12.45 mm0.4900 in

Da - Outer Ring Backing Diameter

 N/A 23.11 mm0.9100 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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