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High-speed angular contact thrust ball bearings
High-speed angular contact thrust ball bearings

High-speed angular contact thrust ball bearings

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High-speed angular contact thrust ball bearings


              • Fig 1. High-speed angular contact thrust ball bearing structure

                As the substitutes of double direction angular contact thrust ball bearings, high-speed angular contact thrust ball bearings consist of two pieces of angular contact ball bearings with 30 ° or 40 ° contact angle and in back-to-back arrangement. These thrust bearings and double direction angular contact thrust ball bearings have the same outside diameter tolerance of outer ring, then there is clearance between outside diameter and the hole of bearing housing in assemble, therefore, high-speed angular contact thrust ball bearings do not bear radial load.

                High-speed angular contact thrust bearings not only maintain high rigidity, but also realize high speed and low temperature rise.

                The codes of ZYS high-speed angular contact thrust ball bearings are 70 A/DB (contact angle 30 °) and 70 B/DB (contact angle 40 °).

                In order to achieve the easy interchange between high-speed angular contact thrust ball bearings and double direction angular contact thrust ball bearings, high-speed angular contact axial thrust bearings are adopted with a special width dimension, which is shown in Fig. 2, 2B = A. When the high-speed angular contact axial thrust bearings are substituted for double direction angular contact thrust ball bearings, the structure and dimensions of shaft and bearing do not need changing, while the washer D should be substituted for the washer C.

                Fig. 2 The mounting of high speed angular contact thrust ball bearing

                 

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