Value Collection 429-3728 Lathe Chuck Adapter Back Plate

Product Description

The VALUE COLLECTION 429-3728 is a lathe chuck adapter back plate designed to mount an 8-inch chuck to a D1-5 spindle nose. The back plate serves as the mechanical interface between the lathe spindle and the chuck body, transmitting torque and maintaining concentricity during turning operations. It is compatible with D Series spindle nose configurations and accommodates a chuck diameter of 8 inches. This type of adapter is installed by machinists and tool room technicians in job shop, production, and maintenance turning applications. The part ships as a single unit and is intended as a direct replacement or upgrade component for compatible lathe setups.

This adapter back plate is suited for use on metal lathes equipped with a D1-5 camlock spindle nose. The D1-5 mount is a standardized taper-and-camlock design commonly found on mid-size engine lathes and toolroom lathes in both manual and CNC configurations. It is appropriate for residential shop, trade school, and light industrial environments where an 8-inch chuck capacity is required. Installation is performed during chuck changeover or when configuring a lathe spindle for a specific chuck body that does not include an integrated back plate.

Key Features

• Designed for 8-inch nominal chuck diameter
• D1-5 camlock mount for quick and repeatable chuck seating
• D Series spindle nose compatibility for standardized fitment
• Sold as a single unit, no minimum multi-unit purchase required
• 14-pound construction suited to the load demands of an 8-inch chuck assembly

Compatibility

Designed for use with 8-inch lathe chucks mounted on D1-5 spindle nose configurations. Compatible with D Series spindle nose lathes requiring an adapter back plate for chuck installation.

Installation Notes

Installation is performed by a machinist or qualified lathe operator. Before mounting or removing the back plate, the lathe must be powered down and the spindle brought to a complete stop. D1-5 camlock studs should be inspected for wear before seating the plate, and camlock pins must be engaged per the spindle manufacturer's procedure. Verify chuck runout with a dial indicator after installation before returning the machine to service.