Material: C45, A3 steel. stainless steel,alum alloy,other material is also available, following customer's requestment.

collars:we are the manufacturer for all kinds of collars,shaft collars,split collars,doubleor single split collars.we are also the professional manufacturer for all kinds of sprockets, European standard series and American standard series.

standard sprocket, idler sprocket, stainless steel sprocket,chain sprockets etc

Material: C45, A3 steel. other material is also avaible, following customer's requestment.type: 08B, 10B, 12B, 14B......, in single, double, triple row.ANSI, ISOTreatment:  forging, hobbing, blackening, quenching. CNC machine processing.