Crown Engineering 41915 Coupler End 4J 7/8 Inches

Product Description

The CROWN ENGINEERING 41915 is a Woods-style coupler end designed for use in mechanical power transmission applications common to HVAC and industrial equipment. This coupler end features a 4J jaw configuration with a 7/8-inch bore, allowing it to mate with corresponding jaw-type flexible couplings. It connects rotating shafts in motor-to-load assemblies, absorbing minor misalignment and vibration. HVAC technicians and mechanical contractors install this component when replacing worn or damaged flexible coupling halves on blower motors, pumps, and similar rotating equipment.

This coupler end is suited for residential and light commercial applications where jaw-type flexible couplings are used to connect drive motors to blower wheels, pumps, or other rotating loads. The 4J designation identifies the coupling jaw size, and the 7/8-inch bore fits standard motor shaft diameters common in HVAC blower and pump assemblies. It is installed as a direct replacement component during scheduled maintenance or emergency repair.

Key Features

• 4J jaw-style configuration for use with standard jaw-type flexible couplings
• 7/8-inch bore fits common motor and equipment shaft diameters
• Woods coupler-style design for broad cross-reference compatibility
• Suitable for blower motors, pumps, and rotating equipment in HVAC systems
• Replacement-ready design for fast field installation

Compatibility

Designed as an OEM-style replacement coupler end for jaw-type flexible coupling assemblies used in HVAC blower, pump, and rotating equipment applications with a 4J jaw size and 7/8-inch shaft bore.

Installation Notes

Installation should be performed by a qualified HVAC technician or mechanical contractor. Disconnect and lock out all electrical power to the equipment before beginning work. Ensure the shaft and bore are clean and free of debris before seating the coupler end, and verify shaft diameter before installation to confirm proper fit. Do not force the coupler onto an incompatible shaft, as this can damage the bore or the coupling spider element.

Technical Specifications

• Jaw Size: 4J
• Bore Diameter: 7/8 inches
• Style: Woods Coupler End

Standard Information

• Brand: CROWN ENGINEERING
• Manufacturer Part Number: 41915