Coupling

Engineered for demanding mining and tunneling duty, the Coupling (OEM 550 602 51) is a high-quality aftermarket replacement for the drifter shank and front-end assembly. The part carries mechanical motion through the drive train, helping preserve timing, alignment and torque transfer under load.

Its robust mechanical construction is intended for cyclic torque and movement, with controlled dimensions supporting proper engagement. Among the listed compatible applications are DS311 and DS411, supporting easier cross-reference during maintenance planning. The part offers an alternative sourcing option for fleets focused on equipment availability, predictable maintenance and competitive operating cost.

To confirm fitment and current stock, send Delkom Delkom 110 102 218 and OEM reference 550 602 51 together with the machine model or serial information. Offered within Delkom’s rock drill spare-parts program, the part supports maintenance teams seeking dependable alternatives for surface and underground drilling equipment.