Bridgeport 76-81 Overload Clutch Assembly

Product Description

The BRIDGEPORT 76-81 is an overload clutch assembly designed for use in Bridgeport-style milling machines. The overload clutch serves as a mechanical protection component, disengaging the drive train when torque exceeds a safe threshold to prevent damage to the spindle, quill, or drive components. Weighing 1 pound, this is a direct in-house replacement part sourced to OEM specification. It is typically installed by machine tool technicians or maintenance machinists during scheduled service or following a drive overload event.

This assembly is suited for vertical knee milling machines where overload protection is built into the power feed or spindle drive mechanism. It is a direct service replacement intended for facilities, job shops, and machine tool repair operations maintaining Bridgeport-style vertical mills. Install scenarios typically involve corrective maintenance after an overload fault or as part of a preventive rebuild of the drive assembly.

Key Features

• Overload clutch assembly provides mechanical drive protection against torque overload events
• In-house OEM-sourced replacement part for accurate fitment
• Lightweight at 1 pound for straightforward handling during installation
• Sold individually with a minimum order quantity of 1

Compatibility

Designed as an OEM-style replacement overload clutch assembly for Bridgeport-style vertical knee milling machines. No additional specific model compatibility data was provided in the product data.

Installation Notes

Installation should be performed by a qualified machine tool technician or maintenance machinist. Disconnect and lock out all electrical power to the milling machine before beginning disassembly of any drive components. Ensure the spindle and power feed mechanisms are fully de-energized and at rest before removing the existing clutch assembly. Refer to the machine's service manual for proper reassembly sequence and torque procedures.