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Angular Contact Ball Bearings

Technical Information on Angular Contact Ball Bearings

Last Modified: 15th Apr 2016

SKF Angluar Contact Ball Bearings

Angluar Contact Ball Bearing

SKF angular contact ball bearings have race ways in both the inner & outer rings that are displaced in respect to each other in the direction of the bearing axis.

This means SKF angular contact metric ball bearings are designed to accommodate combined loads, i.e. simultaneously acting radial & axial loads.

The axial load carrying capacity of SKF or FAG angular contact ball bearings increases with increasing contact angles.

The contact angle of a angular contact ball bearing is defined as the angle between the line joining the points of contact between the ball bearings & the raceways. In the radial plane, along which the load is transmitted from one raceway to another & a line perpendicular to the bearing axis.

Supplementary Designations

A 30° contact angle
AC 25° contact angle
B 40° contact angle
CA Bearing for universal matching. Two bearings arranged back-to-back or face-to-face will have an axial internal clearance smaller than Normal (CB) before mounting
CB Bearing for universal matching. Two bearings arranged back-to-back or face-to-face will have a Normal axial internal clearance before mounting
CC Bearing for universal matching. Two bearings arranged back-to-back or face-to-face will have an axial internal clearance greater than Normal (CB) before mounting
DB Two bearings matched back-to-back
DF Two bearings matched face-to-face
DT Two bearings matched in tandem
E Optimized internal design
F Machined window-type steel cage, ball centred
GA Bearing for universal matching. Two bearings arranged back-to-back or face-to-face will have a light preload before mounting
GB Bearing for universal matching. Two bearings arranged back-to-back or face-to-face will have a moderate preload before mounting
GC Bearing for universal matching. Two bearings arranged back-to-back or face-to-face will have a heavy preload before mounting
J Pressed window-type steel cage, ball centred
M Machined window-type brass cage, ball centred, different designs are identified by a figure, e.g. M1
MB Machined brass cage, inner ring centred
N1 One locating slot (notch) in the large outer ring side face
N2 Two locating slots (notches), 180° apart, in the large outer ring side face
P Injection moulded window-type cage of glass fibre reinforced polyamide 66, ball centred
PH Injection moulded window-type cage of glass fibre reinforced polyetheretherketone (PEEK), ball centred
P5 Dimensional and running accuracy to ISO tolerance class 5
P6 Dimensional and running accuracy to ISO tolerance class 6
W64 Solid Oil filling
Y Pressed window-type brass cage, ball centred

SKF & FAG bearings are both manufactured in wide range of sizes & designs. The angular contact ball bearings most commonly used in engineering are:

  • Single row angular contact ball bearings
  • Double row angular contact ball bearings
  • Four point angular contact ball bearings
  • Double row cam rollers

We can also offer a vast range of high precision & high speed angular contact ball bearings from a range of different manufacturers including SKF, SNFA, RHP, NSK  & FAG Barden.