What materials are slewing bearings made of?
Turntable bearing material
Under normal circumstances, the slewing bearing ring is made of 50Mn, but sometimes 42CrMo is used to meet the needs of the host in special applications. Rolling elements generally use GCr15SiMn. The types of retainers include different structural types such as integral type, segmented type, and isolation block type. The integral or segmented retainer is made of 20# steel or ZL102 cast aluminum alloy. The isolation block retainer is made of polyamide 1010 resin, ZL102 cast aluminum alloy or QA110-3-1.5 aluminum bronze. Sealing ring material: oil-resistant rubber, fluorine-containing rubber, oil-resistant nitrile rubber.
Commonly used structural forms of slew bearings include single-row, double-row four-point contact ball slew bearings, double-row angular contact thrust ball slew bearings, crossed cylindrical roller and crossed tapered roller slew bearings, three-row cylindrical roller slew bearings, ball Different structural forms such as column hybrid slew bearings. The above types of bearings are divided into different structures such as toothless type, external tooth type, and internal tooth type according to whether they are toothed and the distribution position of the gear.
