Bridgeport 12061249 Knee Crank Assembly Series I Mill

Product Description

The BRIDGEPORT 12061249 is a knee crank assembly designed as a direct replacement or service part for Bridgeport Series I milling machines. The knee crank is the mechanical interface that raises and lowers the knee casting on a vertical knee mill, allowing the operator to set workpiece height relative to the spindle. This assembly is an OEM-sourced hardware component intended for installation by a qualified machine tool technician or maintenance professional performing scheduled service or repairs on a Bridgeport-style knee mill.

This knee crank assembly is specified for use with the Basic Machine configuration of Bridgeport Series I milling machines. It is a direct-fit component suited to shops and service facilities that maintain Bridgeport or Bridgeport-compatible knee mills in production environments. Typical installation occurs during preventive maintenance cycles or when the existing crank assembly shows wear, slippage, or mechanical failure affecting knee travel and positional control.

Key Features

• OEM Bridgeport part number 12061249 ensures correct fit for Series I knee mills
• Knee crank assembly replaces the complete crank mechanism for knee vertical travel
• Designed for Basic Machine configuration of Series I Bridgeport milling machines
• Sold as a single assembly unit, package quantity of one

Compatibility

Designed for use with Bridgeport Series I milling machines, Basic Machine configuration. Verify your machine serial number and configuration against Bridgeport parts documentation before ordering to confirm fitment.

Installation Notes

Installation should be performed by a qualified machine tool technician familiar with Bridgeport knee mill mechanical assemblies. Disconnect and lock out all electrical power to the machine before beginning any mechanical disassembly. Consult the Bridgeport Series I parts and service manual for proper removal and reinstallation procedures specific to the knee crank assembly. Verify smooth knee travel and proper crank engagement before returning the machine to service.