Bridgeport 12190079 Hub Quill Pinion Clutch Milling Machine

Product Description

The BRIDGEPORT 12190079 is a hub quill pinion clutch component designed for use in Bridgeport milling machines. This part interfaces with the quill feed mechanism, transferring rotational motion to enable controlled vertical quill travel. It fits within the lower housing assembly of 2J and J-Head style machines. Machinists, machine tool technicians, and millwrights performing mechanical rebuilds or repairs on I Series milling machines rely on this OEM-style replacement part to restore proper quill feed engagement and function.

This hub quill pinion clutch is intended for I Series Bridgeport milling machines equipped with 2J and J-Head lower housing configurations. It is a direct-replacement component suited for machine shops, tool rooms, and production environments where worn or damaged quill pinion clutch assemblies need to be swapped out to return the machine to proper operating condition. Installation is typically performed during a quill feed mechanical overhaul or as part of a targeted repair to address feed engagement failure.

Key Features

• OEM-referenced hub quill pinion clutch for Bridgeport I Series milling machines
• Designed for 2J and J-Head lower housing configurations
• Supports quill feed engagement and vertical travel control
• Single-unit packaging suitable for targeted component replacement

Compatibility

Compatible with Bridgeport I Series milling machines using 2J and J-Head lower housing assemblies, as specified by the manufacturer.

Installation Notes

Installation should be performed by a qualified machine tool technician or millwright familiar with Bridgeport quill feed assemblies. Disconnect and lock out all electrical power to the machine before disassembling the quill housing. Use proper bearing and clutch assembly tools to avoid damage to mating surfaces during installation. Refer to the Bridgeport service manual for disassembly sequence and reassembly procedures specific to the lower housing.