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The BRIDGEPORT 12150780 is a quick-release ball crank assembly designed as a direct replacement hardware component for milling machine power feed systems. This assembly provides the mechanical interface used to engage and disengage the Y-axis power feed on compatible milling machines. It is a precision hardware part intended for installation by qualified machine tool technicians or maintenance personnel performing scheduled or corrective maintenance on shop floor milling equipment. The quick-release design allows for faster disengagement of the feed mechanism without the use of additional tools, reducing downtime during axis changeover operations.
This ball crank assembly is specifically designated for use with the Y-axis power feed on I Series milling machines. It is suited for production shops, tool rooms, and machine shops operating BRIDGEPORT I Series knee mills where the Y-axis power feed assembly requires component-level repair or replacement. Installation typically occurs during preventive maintenance cycles or after mechanical wear or failure of the existing ball crank hardware.
Designed for use with the Y-axis power feed on BRIDGEPORT I Series Milling Machines.
Installation should be performed by a qualified machine tool technician or maintenance mechanic familiar with milling machine feed assemblies. Disconnect and lock out all electrical power to the machine before beginning any mechanical disassembly or component replacement. Ensure the power feed unit is fully de-energized and stationary before removing the existing ball crank assembly. Follow applicable machine tool safety standards and the manufacturer service documentation for proper reassembly procedures.
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