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Selecting Angular Contact Ball Bearings

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In order to select angular contact ball bearings a few application details have to be known.
a) Minimum and maximum shaft speed
b) Intended method of lubrication, i.e. oil drip mechanism, oil mist, grease only etc
c) Maximum Axial and radial loads
d) Life requirements
e) Shaft dimensions and shaft material
f) Housing dimensions and housing material
g) Contamination possibilities
h) Ambient temperature and local working temperature
i) Maximum shaft deflection / movement

From this information the following can be ascertained.

1) ring sizes and materials and precision
2) cage type
3) ball material
4) contact angle
5) set up, i.e. back to back, face to face, triplex set up etc.
6) complimentary lubricant requirement.
7) preload method (if any) i.e. match ground, spacers, sprung washers etc

Selecting an angular contact bearing for an application can be relatively straight forward. Replacing an angular contact ball bearing with an alternate brand is sometimes more difficult. Switching brands is possible and may well be inevitable at some stage in a machine's life due to original bearing supply problems. Over the years AHR International have specialised in offering alternative angular contact solutions. We only use reputable brands such as RHP Precision, Fafnir, SNFA, SNR, NTN, Barden, FAG, INA, IRB etc. Most of these brands have a high degree of product overlap and it should be possible to find alternate brand matches which are suitable for your application.

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