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Material used for slewing bearing components

Views:4     Author:Site Editor     Publish Time: 2019-12-08      Origin:Site

1.Ferrule and rolling material

In general, the slewing bearing rolling elements are integrally hardened carbon chromium bearing steel. The grade is made of GCr15 or GCr15SiMn steel; the slewing ring is made of surface hardened steel. When the user has no special requirements, it is usually made of 50Mn steel, but sometimes it can be provided according to the needs of some special applications. For the specific conditions of use, other grades of surface hardened steel, such as 42CrMo, 5CrMnMo, etc., are selected.


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2.Cage material

The slewing bearing cage has a structural form such as an integral type slewing ring , a segmented type, and an isolated block type. The integral and segmented cages are made of 20 gauge steel or ZL102 cast aluminum alloy. The slewing ring spacer block is made of polyamide 1010 resin, ZL102 cast aluminum alloy, and the like. In recent years, with the continuous development of the material industry, nylon GRPA66.25 has also been promoted and applied in the design of segmented cages.

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