Crafts idler ani track adjuster bɛ dilan ka kɛɲɛ ni OEM . sariya ye. A dilannen don ni nɛgɛ bulama ye, idler main pin shaft bɛna gɛlɛya ni mid frequency hardening heat treatment ye walasa k’a gɛlɛya. O waati kelen na, idler shell bɛ fili ni nɛgɛ kɛrɛnkɛrɛnnen ye.