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 that can manage actually even without carrier rollers sometimes.
For Komatsu Dozer carrier roller, we carry quite number of models such as:
D120A, D125A, D135A, D150A, D155A, D155C, D155S, D155W, D20A, D20P,D20Q, D20S, D21A, D21E, D21P, D21Q, D21S, D275A-2, D275A-5, D275AX-5, D30A,D30S, D31A, D31E, D31P, D31Q, D31S, D32E, D32P, D355A-1, D355A-3, D355A-5, D355C-3, D375A-1/2/3/5/6, D37E1/2/5,D37EX21/22, D37P1/2/5, D38E/P, D39E/P, D40A/F/P, D41A/E/P/Q/S, D45A/E/P/S, D475A1/2, D50A/F/P/S, D51Ex-22, D51Px-22, D53A/P/S, D55S, D57S, D58E/P, D60A/E/F/P/S, D61Ex-12/15, D61Px-12, D63E, D65A/E/EX/P/PX/S/Wx-15, D66S, D68E, D68P,D75A,D75S, D80A, D80E 18, D80F18, D80P18, D83E/P,D85A, D85E18/21, D85ESS 2A, D85EX15, D85P 18/21,D85Px 15, D95S
Apart from the mainstream models for these brands mentioned, we are able to provide our customer customization service as well with customer drawings(be noted there might be MOQ). We offer our customers with high performance undercarriage parts to decrease their offtime hour and maintenance cost, including single flange track roller, upper roller, idler assy, sprocket segment, track link assembly, recoil spring, bucket link, bulldozer bucket etc.