111S0119-3 Japanese word ring, Japanese word connecting ring, suitable for SGZ764 fully mechanized mining scraper conveyor.

Japanese word ring, also known as long ring, 8 word ring, 8 word buckle, 8 word sleeve, coupling pin, coupling ring, is suitable for the connection of scraper conveyor and middle slot of transfer machine for coal mine underground. 
The Japanese-shaped ring and the long ring are in the shape of an "8", which functions as a dumbbell pin assembly to prevent the middle groove from moving laterally. 
The common Japanese word ring model is 111S. 
The main materials are 45 #, 42CrMo, etc. The theoretical weight is 14.5kg, the theoretical length is 488mm, the theoretical width is 165mm, and the theoretical height is 85mm.