Carrier roller is also called upper roller or top roller, it is above the track frame, which is designed to carry and lead the chain/track moving in a straight line. It is also part of the tension system, However, not all machines are fitted with top rollers, generally only diggers over 3 tonnes in operating weight. For some smaller machines can manage actually even without carrier rollers.
For Caterpillar excavator carrier roller, we carry quite number of models such as:
205, 205B, 211, 213, 213B, 215, 215B, 215D, 219, 219D, 225, 225B, 225D, 227, 229, 231, 235, 235B, 235C, 235D, 245, 245B, 279C, 289C, 299C, 301.1, 301.5, 301.6, 301.8, 302.5, 302.5C, 302.7D, 303.5, 303.5CCR, 304, 304.5, 304C, 304CR, 305,305C, 305CR, 307, 307B, 307C,308C, 311, 311B, 311C, 312, 312B, 312C,312D, 313B, 314C, 314D, 314E, 315, 315C, 316FL, 317, 318BL, 318C, 319E, 320,320C, 320D, 322, 323, 324D,325, 325B, 325C, 325D,329EL, 330, 330B, 330C, 330D, 336D, 336E, 345B, 345D, 349D,349E, 350, 365BL, 365CL, 374D, 375, 385B
