Bridgeport 12190111 Quill Lock Bolt Milling Machine

Product Description

The BRIDGEPORT 12190111 is a quill lock bolt designed for use on I Series milling machines. This hardware component secures the quill in position during milling operations, preventing unwanted vertical movement of the spindle assembly. It fits the 2J and J-Head lower housing configurations common in vertical knee mills. Machinists and machine tool technicians install this part as a direct OEM-style replacement when the original bolt is worn, stripped, or missing. At 1 pound, it is a compact but essential component for maintaining accurate quill positioning during manual milling work.

This quill lock bolt is intended for I Series vertical milling machines equipped with 2J or J-Head lower housing assemblies. It is a standard replacement part used in production shops, toolrooms, vocational facilities, and maintenance departments where BRIDGEPORT-style knee mills are in regular service. The part is sold individually and is appropriate for both scheduled maintenance rebuilds and emergency component replacements.

Key Features

• Direct OEM-style replacement quill lock bolt for BRIDGEPORT I Series mills
• Compatible with 2J and J-Head lower housing configurations
• Secures the quill to maintain spindle position during milling operations
• Sold as a single unit for precise quantity ordering
• Weighs 1 pound for straightforward handling and installation

Compatibility

Designed for use with BRIDGEPORT I Series Milling Machines equipped with 2J and J-Head lower housing assemblies.

Installation Notes

Installation should be performed by a qualified machinist or machine tool technician familiar with vertical knee mill assemblies. Power down and de-energize the machine before servicing any quill or spindle components. Inspect threads on both the bolt and the lower housing before installation to ensure proper engagement. Follow the machine manufacturer's service documentation for torque and fitment procedures.