WEAR PREVENTING MECHANISM OF FLEXIBLE ENGAGEMENT TYPE GEAR DEVICE

摘要

PROBLEM TO BE SOLVED: To prevent fretting corrosion generated at a sliding surface between an elastic outer teeth gear and a wave generator in a flexible engagement type gear device. ;SOLUTION: This flexible engagement type gear device is provided with a plating layer 6 consisting of electroless nickel-phosphorus coating formed at the inner periphery surface 31 of an elastic outer teeth gear, between the inner periphery surface 31 of the elastic outer teeth gear 3 and the outer periphery surface 422R of a ball bearing outer ring 422 in a wave generator 4. The plating layer 6 is impregnated with PTFE as solid lubricant. This plating layer 6 can prevent fretting corrosion from occurring at a sliding surface between both of them.;COPYRIGHT: (C)1998,JPO