Hertel 1-201-0800 3-jaw Lathe Chuck 8 Inches Plain Back

Product Description

The HERTEL 1-201-0800 is a self-centering 3-jaw manual lathe chuck designed for general-purpose turning operations on manual lathes. The 8-inch cast iron body provides rigidity and thermal stability during cutting operations. A plain back mount configuration allows machinists to fit a custom backplate matched to the specific lathe spindle nose. The chuck accepts workpieces from 5/16 inch minimum up to 7-7/8 inch maximum jaw capacity and is rated to 2,500 RPM. Axial runout is held to 0.0010 inch and radial runout to 0.0016 inch, making it suitable for general-tolerance turning where consistent centering is required.

This chuck is intended for use on manual engine lathes in machine shops, toolrooms, maintenance facilities, and vocational training environments. The reversible jaws extend versatility, allowing the chuck to grip both small-diameter bar stock and larger-diameter workpieces without a jaw change. The 2.1654-inch through-hole diameter accommodates bar stock fed through the lathe spindle. Typical installers are machinists and millwrights fitting or replacing chuck assemblies on manual turning equipment.

Key Features

• Self-centering 3-jaw design for fast, repeatable workpiece setup
• Reversible jaws handle both inside and outside gripping applications
• Plain back mount accepts a custom backplate for compatibility with a wide range of lathe spindle noses
• 2.1654-inch through-hole diameter supports bar-feed turning operations
• Axial runout 0.0010 inch and radial runout 0.0016 inch for consistent concentricity
• Cast iron body construction for durability and vibration dampening

Compatibility

Designed as a plain back mount lathe chuck requiring a separately sourced backplate matched to the lathe spindle nose; verify spindle nose type and backplate bore before installation.

Installation Notes

Installation should be performed by a qualified machinist or millwright. Before mounting or removing the chuck, disengage the lathe from power and confirm the spindle has come to a complete stop. The plain back configuration requires a properly fitted and faced backplate; the backplate should be trued on the lathe before final chuck mounting to minimize runout. Follow the lathe and chuck manufacturer documentation for correct fastener pattern and torque sequence.