The idler assy, which is also called idler group or front idler or rear idler, is one part of undercarriage parts for crawler heavy equipments such as excavator, bulldozer, crane, drilling machine etc.

Excavator idler assy is made of idler shell, shaft, brackets, Bi-metallic Bearings and seal group. It is made by casting or forging, machining, heat treatment, assembly, painting etc.

The quality and working life depends on the quality of raw steels, the hardness of rail surface, the depth of hardness layer, the quality of seal group etc.

We control all procedure very strictly. We guarantee one year for our BERCH brand idlers.

Our idlers are applicable for Komatsu, Hitachi, Kobelco, Daewoo, Hyundai, Volvo, Jcb etc. We can also offer OEM service according to your drawings or samples.