51546455 Ingersoll Rand OEM Drive Coupler

The 51546455 Ingersoll Rand OEM Drive Coupler is an original equipment part for Ingersoll Rand DM-series drilling rigs, providing the critical flexible link in the engine-to-compressor drivetrain. This coupler is designed for the high-torque, continuous-duty demands of production drilling operations.

DM-platform rigs including the DM-45 and DM-L series operate in open-pit mines and quarries where equipment runs multiple shifts per day. The drive coupler transfers diesel engine output to the air compressor while damping torsional oscillation that would accelerate wear on bearings, gears, and shaft seals throughout the drivetrain. A deteriorated element allows enough movement to cause audible knocking during load transitions and measurable vibration increases at the compressor housing.

This factory replacement part uses the same elastomer formulation and dimensional specifications as the original. Before installation, check both coupling hubs for fatigue cracks, especially around the keyway areas. Verify angular and parallel alignment per the rig maintenance manual.

In stock and shipping daily from Stark Industrial Products.