Hertel 1-201-0500 3-jaw Lathe Chuck 5 Inch Plain Back

Product Description

The HERTEL 1-201-0500 is a self-centering 3-jaw manual lathe chuck designed for precision workholding on metalworking lathes. Built with a cast iron body, this chuck measures 5 inches in diameter and mounts via a plain back configuration. It supports a maximum spindle speed of 3,200 RPM and offers a through-hole diameter of 1.2598 inches. Axial runout is rated at 0.0008 inches and radial runout at 0.0012 inches, making it suitable for close-tolerance turning work. Licensed machinists and lathe operators install this chuck in production and job-shop environments where repeatable jaw centering is required.

This chuck is intended for use on manual engine lathes in light industrial, toolroom, and production machining settings. The plain back mount requires a separate adapter plate or backplate matched to the specific lathe spindle nose. Reversible jaws extend workholding flexibility, accommodating both outside-diameter and inside-diameter gripping without a jaw change. The minimum jaw capacity is 1/8 inch and the maximum jaw capacity is 4-59/64 inches, covering a wide range of round and hex stock diameters common in general turning work.

Key Features

• Self-centering 3-jaw design for fast, repeatable workpiece location
• Reversible jaws support both OD and ID clamping configurations
• Cast iron body provides rigidity and vibration damping during cuts
• Axial runout of 0.0008 inches and radial runout of 0.0012 inches for close-tolerance applications
• Plain back mount adapts to a wide range of lathe spindle configurations via backplate
• Through-hole diameter of 1.2598 inches accommodates bar stock feeding

Compatibility

Designed as a plain back mount lathe chuck suitable for engine lathes that accept a 5-inch chuck with a separately sourced adapter backplate matched to the lathe spindle nose.

Installation Notes

Installation is performed by a qualified machinist or lathe operator. Power down and lock out the lathe before mounting or removing any chuck. A proper backplate must be precision-bored and faced to match the lathe spindle nose before this chuck can be mounted. Verify chuck mounting bolt torque and runout with a dial indicator after installation before returning the machine to service.