Bridgeport 12180082 Stationary Drive Disc Milling Machine

Product Description

The BRIDGEPORT 12180082 is a stationary drive disc designed as a direct replacement component for Bridgeport milling machines. The stationary drive disc is a critical mechanical component within the variable-speed drive system of the 2J-Head Top Housing. It works in tandem with the movable drive disc to transmit rotational force and maintain consistent spindle speed under load. This part weighs 10 pounds, indicating a cast or heavy-machined construction appropriate for the torque demands of a production milling environment. Licensed machine tool technicians and millwrights handle installation of this component during drive system rebuilds or routine wear replacement.

This stationary drive disc is engineered for use with Bridgeport I Series milling machines equipped with the 2J-Head Top Housing. It is a common wear component in shops running continuous or high-cycle milling operations where the variable-speed drive assembly experiences regular mechanical stress. Replacement is typically performed during scheduled preventive maintenance intervals or when erratic spindle speed, unusual drive noise, or visible disc wear is observed during inspection.

Key Features

• Direct-fit stationary drive disc for the Bridgeport 2J-Head Top Housing assembly
• Engineered for I Series milling machine variable-speed drive systems
• Substantial 10-pound construction supports high-torque milling applications
• OEM Bridgeport part number ensures dimensional accuracy and proper fitment
• Sold individually — one disc per package

Compatibility

Designed for use with Bridgeport I Series milling machines equipped with the 2J-Head Top Housing variable-speed drive assembly.

Installation Notes

Installation of this stationary drive disc should be performed by a qualified millwright or machine tool technician familiar with Bridgeport variable-speed drive assemblies. Disconnect and lock out the machine from all power sources before disassembling the head housing. Refer to the OEM Bridgeport service manual for proper disassembly sequence and drive disc seating procedures. Inspect the mating movable disc and drive belt for wear before reassembling the drive system.