Techniks 46140 ER40 Slotted Collet Nut

Product Description

The TECHNIKS 46140 is a slotted collet nut designed for use with ER40 collet chucks. It threads onto the collet chuck body to clamp and retain ER40 collets during machining operations. The slotted design allows a spanner wrench to apply precise clamping torque, securing the collet and workpiece or cutting tool in place. Machinists and toolroom technicians install this nut as a standard component of ER40 toolholding assemblies on CNC machining centers, mills, and lathes. It is not configured for coolant-through applications.

This collet nut is intended for ER40 series toolholding setups in production and job-shop machining environments. It suits both horizontal and vertical spindle configurations where ER40 collet chucks are in use. The nut is a direct replacement or spare component for existing ER40 assemblies and is sold individually.

Key Features

• Compatible with ER40 collet series toolholding systems
• Slotted design accepts a standard ER40 spanner wrench for proper torque application
• Non-coolant-through configuration
• Sold as a single unit, suitable for replacement or spare inventory

Compatibility

Designed for use with ER40 collet chucks and ER40 series collets as an OEM-style replacement or spare collet nut.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Ensure the spindle is powered down and the machine is in a safe, locked-out state before servicing toolholders. Use the correct ER40 spanner wrench to tighten the collet nut to the chuck manufacturer's specified torque range. Inspect the nut threads and collet taper for wear or damage before assembly.