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1, under normal circumstances, the turntable bearing rings choice of 50Mn, but sometimes in order to meet the needs of special applications host selection 42CrMo.

    2, the rolling body generally to selected GCr15SiMn.

    3, to maintain the type of monolithic, segmented, isolated block of different structural types. Monolithic or segmented to keep 20 # steel or ZL102 casting aluminum alloy. Isolating block retainer with polyamide 1010 resin of ZL102 cast aluminum alloy or QA110-3-1 aluminum bronze.

    Ring material: oil resistant rubber, fluorinated rubber, oil resistant nitrile rubber. Turntable bearing clearance turntable bearing clearance is mainly used for compensation turntable bearing support part and the host assembly parts of the manufacturing error and installation error in order to ensure the normal use of the bearing. Turntable bearing structure type / tolerance class and rolling element group section diameter, the turntable bearing clearance value or to the amount of interference