Crown Engineering 41903 Woods Coupler End 4J X 1

Product Description

The CROWN ENGINEERING 41903 is a 4J x 1 inch Woods coupler end designed for use in flexible shaft coupling assemblies. This component serves as the terminating end piece that connects a drive shaft to a Woods-style jaw coupler hub, transmitting torque between coupled equipment. It is a precision-machined mechanical component suited for industrial and HVAC equipment applications where reliable shaft connections are required. Licensed mechanics and millwrights install this part during drive assembly, equipment alignment, or coupling replacement service.

This coupler end is used in applications where Woods-style jaw couplings are specified for motor-to-load shaft connections. Common install scenarios include blower assemblies, pump drives, and other rotating equipment found in commercial and industrial mechanical systems. The 4J jaw designation and 1 inch bore dimension define its fit within the Woods coupling series.

Key Features

• 4J jaw profile mates with standard Woods series flexible coupler spiders
• 1 inch bore accommodates standard shaft diameters in motor and blower assemblies
• OEM-style replacement geometry for direct-fit installation
• Designed for torque transmission in rotating drive applications

Compatibility

Designed as an OEM-style replacement coupler end for equipment using Woods 4J series jaw coupling assemblies with a 1 inch shaft bore.

Installation Notes

Installation should be performed by a qualified mechanic or HVAC technician. Always de-energize and lock out the equipment before servicing any rotating drive component. Ensure proper shaft alignment before tightening the coupler to avoid premature wear on the spider insert. Follow the equipment manufacturer's assembly guidelines for coupling installation and inspection intervals.

Technical Specifications

• Jaw Series: 4J
• Bore Size: 1 inch
• Type: Woods Coupler End

Standard Information

• Brand: CROWN ENGINEERING
• Manufacturer Part Number: 41903