Aerospace / Military
Aerospace Series General Aviation Rod Ends Spherical Bearings Mil Spec Series Rod Ends Spherical Bearings Bushings Approved Part Numbers
Commercial / Industrial
Rod End Bearings Inch Rod Ends Metric Rod Ends Spherical Bearings Inch Spherical Bearings Metric Spherical Bearings
Technical Resources
Terms and Definitions Articles Technical Data FAQs Key Term Translation Custom Engineered Products
Online Catalog
Engineers power search our entire catalog of bearing and bushings, with access to every attribute and technical specification possible. View our online catalog...
CAD (0) ▾
  • Cart is empty
  1. Request CAD files
Request Information Add to CAD Cart
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 140 mm

Ball Type

 N/A STEEL

Manufacturing Part Number

 N/A 128WDBR

Dimensions

D - Outer Diameter

 N/A 220 mm8.6614 in

Bearing Width

 N/A 36 mm1.4173 in

Basic Load Ratings

Ce - Dynamic Radial Rating1 N/A 162900 N36600 lbf

C0 - Static Radial Rating

 N/A 156000 N35100 lbf

Factors

Limiting Speed (Grease)

 N/A 1389 rpm

Limiting Speed (Oil)

 N/A 1667 rpm

Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius2 N/A 2.01 mm0.079 in
r - Outer Ring "To Clear" Radius3 N/A 2.01 mm0.079 in

da - Inner Ring Backing Diameter

 N/A 162.66 mm6.4039 in

Da - Outer Ring Backing Diameter

 N/A 200.51 mm7.8941 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.