The 50456383 Ingersoll Rand OEM Coupler is an original equipment drive coupling for Ingersoll Rand DM-series rotary drilling platforms including the DM-45, DM-50, and DM-L. This coupling handles the high-torque power transmission demands of blasthole drilling rigs used in mining, quarrying, and large-scale construction operations.
In drilling rig service, the drive coupler is a critical link in the power train. It must transmit significant torque while absorbing the torsional shock loads generated during drilling – including sudden impacts when the drill bit encounters hard rock formations or voids. Unlike compressor couplers that primarily deal with steady-state vibration, drilling rig couplers face dynamic load spikes that test material limits.
The 50456383 meets Ingersoll Rand’s OEM specifications for dimensional accuracy, material properties, and load capacity. When installing, verify hub-to-hub spacing, check all bolt holes for elongation, and follow the manufacturer’s torque sequence. Drilling rig couplers should be inspected at every scheduled maintenance interval given the severity of their operating environment.
In stock at Stark Industrial Products for shipment to mining operations and heavy equipment maintenance facilities.









