Eaton ET401DC-M230S 4-Bolt 230 Frame Pump Drive Coupling

The Eaton ET401DC-M230S is a new hydraulic pump drive coupling from Eaton Hydraulics, designed to connect a hydraulic pump to a prime mover (typically an electric motor) through a bell housing adapter arrangement. The part number encodes key configuration details: 'ET401' identifies the coupling series/type, 'DC' denotes a direct-coupled or disc-coupling design, 'M230' designates compatibility with a NEMA 230 (or equivalent metric 230) frame motor mount, and 'S' indicates a specific shaft or spider/element configuration. The coupling consists of a segmented ring assembly with interlocking jaw segments (visible in photos) and incorporates a sintered or oxide-blackened steel construction consistent with Eaton Hydraulics pump drive coupling standards. The segmented jaw design allows for standard bell housing mounting between an SAE hydraulic pump flange and a motor face, transmitting torque while accommodating minor shaft misalignment. This coupling is sold as a complete new assembly including all jaw segments as shown, and is intended for use with Eaton or compatible hydraulic pump and motor combinations using a 230 frame interface.

Product Specifications