Bridgeport 12180089 Pivot Sleeve Milling Machine Part

Product Description

The BRIDGEPORT 12180089 is a pivot sleeve replacement part designed for Bridgeport-style milling machines. The pivot sleeve is a mechanical hardware component that provides rotational or angular support within the machine's head or ram assembly, allowing controlled movement between mating components. This type of part is typically serviced by machine tool technicians or millwrights during scheduled maintenance or following wear-related failure. Proper fit and material integrity are critical for maintaining alignment and smooth operation in a vertical milling setup.

This pivot sleeve is suited for use in vertical knee mills and similar Bridgeport-pattern milling machines found in machine shops, toolrooms, and light industrial facilities. It is used during head repositioning or ram adjustment service, where sleeve wear can cause looseness, misalignment, or lost motion in the machine's articulating joints. Installation is performed as part of a targeted repair rather than a routine consumable replacement.

Key Features

• OEM-style pivot sleeve for Bridgeport milling machine hardware assemblies
• Supports controlled angular or rotational movement at pivot points in the milling head or ram
• Packaged as a single unit for individual repair or maintenance use
• Direct replacement geometry helps restore original machine alignment and reduce play

Compatibility

Designed as an OEM-style replacement pivot sleeve for Bridgeport-pattern vertical knee milling machines requiring hardware component service.

Installation Notes

Installation should be performed by a qualified machine tool technician or millwright familiar with vertical milling machine head and ram assemblies. Disconnect and lock out all electrical power to the machine before disassembling any pivot or articulating joint. Standard hand tools and a press or mallet may be required to seat or remove the sleeve, depending on fit class. Consult the machine's OEM service documentation for proper assembly sequence and torque requirements.