The driver is a part of the overrunning clutch of the starter.

Basic materials for the production of drivers are steel bars or steel wire on coils. They are first cut to length and then cold formed in a sequence of operations. After that they are machined on turning lathes. Through hardening the parts receive a surface quality that guarantees long lifetimes. UKM produces high quantities of drivers in a variety of different shapes. Individual manufacturing operations in highest precision ensure consistently high quality.

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