Expanding Shaft

Created for continuous-duty rock drilling applications, the Expanding Shaft (OEM 3222 3056 57) offers a service-focused replacement choice for the rotation and drive train. It maintains location, spacing or joint integrity between mating components, helping preserve alignment under vibration and repeated operating loads.

Accurate dimensions and durable load-bearing surfaces help the joint resist vibration, repeated movement and loss of alignment in heavy drilling service. This aftermarket option is intended to support planned maintenance and faster parts sourcing while preserving the required application fit. Typical listed applications include FLEXIROC D60LF and FLEXIROC D65 – 10 LF, subject to machine specification and configuration verification.

Delkom supports drill-rig and drifter maintenance with alternative components for demanding mining and tunneling applications. To check fitment, lead time or bulk pricing, share Delkom reference 120 400 159 and OEM reference 3222 3056 57.