Komatsu Top Rollers

DuraTrack top rollers for Komatsu excavators and tracked carriers, listed by machine model

Top rollers, also called carrier rollers, guide the track over the undercarriage frame on its return run. DuraTrack top rollers are listed for Komatsu models including CD60R, PC30-7, PC40R-8, PC78MR-6, PC120-8, PC138USLC-8, PC190NLC-8, PC210-7, PC220-6 and PC230LC-6. See also: Komatsu idlers, Komatsu sprockets.

DuraTrack rollers use forged shells, friction welded or submerged arc welded and heat treated by differential quenching or through hardening, with hardened shafts in forged alloy or rolled carbon steel. The range covers single flange, double flange and shaft type carrier rollers, manufactured to OEM specification in ISO 9001 approved facilities, with reinforced flanges and heavy-duty sealing to extend wear life.

The machine model and serial number identify the roller, and the number of carrier rollers on each side and the markings on the side of the old roller confirm the match. Wide track shoes increase roller tread and flange wear, so use the narrowest shoe that still gives good flotation.

Held in US stock. Order by 4:00pm CT for same-day shipping on stocked rollers. All DuraTrack components carry a minimum 12-month warranty as standard. Measure the top rollers and bottom rollers against new dimensions so both sets can be planned together, and our team will tell you what to measure. Send the machine model and serial number to the team, or browse all top rollers, Komatsu bottom rollers and the wider DuraTrack undercarriage range.