... bucket and so on . Our main spare parts are track roller,top roller,sprocket,track link ,bolt & nut, bucket ,teeth ,adaptor,muffler ... etc .Type: Carrier roller R200Other type is in the following :1) Komatsu: PC40, PC60 ... , SH200, SH280, SH300, SH400 8) Mitsubishi: MS110, MS120, MS180 9) Samsung: SE55, SE210 High quality carrier roller R200