Bridgeport 11180133 Vari-speed Spindle Dial 2j-head

Product Description

The BRIDGEPORT 11180133 is a vari-speed spindle dial designed as a direct replacement component for BRIDGEPORT milling machines. This dial controls spindle speed selection within the variable-speed drive system, allowing operators and service technicians to set and read spindle RPM during machining operations. It mounts on the 2J-Head Back Gear assembly and integrates with the existing speed control mechanism. Machining shop technicians and industrial equipment service personnel are the primary installers of this component during scheduled maintenance or after mechanical wear or damage to the original dial.

This part is specified for use with BRIDGEPORT I Series milling machines equipped with the 2J-Head Back Gear configuration. It is suited for production machine shops, tool rooms, and maintenance departments where milling machine uptime is critical. The vari-speed dial is a precision-fit OEM-style replacement intended to restore proper speed indication and control function to the head assembly without modification to the existing hardware.

Key Features

• Designed specifically for the 2J-Head Back Gear spindle speed control assembly
• Compatible with BRIDGEPORT I Series milling machines
• Restores accurate vari-speed dial function on worn or damaged units
• OEM-style fitment — no modification required for installation
• Sold individually as a single-piece replacement component

Compatibility

Designed for use with BRIDGEPORT I Series milling machines equipped with the 2J-Head Back Gear assembly.

Installation Notes

Installation should be performed by a qualified machinist or industrial equipment technician familiar with BRIDGEPORT milling machine head assemblies. Disconnect and lock out power to the machine before beginning any work on the spindle head. Refer to the OEM service manual for the correct disassembly sequence for the 2J-Head before removing the existing dial. Ensure the replacement dial is seated and secured per the original assembly specification before restoring power.