SKF paired single row angular contact ball bearing structural features

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SKF paired single row angular contact ball 72XX and 73XX series of two kinds, and standard precision bearings for P6 class (in the bearing models are not marked), they can be any group dubbed the back-to-back form or face-to-face form. They suffix meaning:ball bearing
B - 40 °; E - high carrying capacity; CB/GA-- clearance / preload

SKF has three kinds of gap rating:

CB - standard axial clearance, matching bearing installation;china bearing

CC - axial gap of less than CB;

CA - axial gap is less than the CC

SKF also has three kinds of pre-load levels:angular contact bearings

GA - light preload;

GB - Pre-load is greater than the GA grade;

GC - pre-load is greater than GB grade;

Cage type:

SKF offers two types of cage bearings used in the petrochemical industry centrifugal pump. Machined brass cage (indicated by M) and hit the pressure-type steel cage (with J). On the contrary, the plastic cage bearings is strictly prohibited.

Here we elected suffix BECBM angular contact ball bearings used in the petrochemical industry centrifugal. This is not only because of the group with less bearing internal clearance (CB level) can be well controlled rolling body sliding bearings, machine cut brass to keep the aircraft than the strike pressure steel cage design is more robust, with high reliability. Precisely because so many petrochemical companies are using the suffix for the bearing of BECBM as their standard bearings.