Jergens 49501 Ball Lock Receiver Bushing 20mm Bolt-in

Product Description

The JERGENS 49501 is a bolt-in recessed modular fixturing receiver bushing designed for use with Ball Lock compatible workholding systems. It features a 20mm inside diameter and a 1.6873-inch outside diameter, with an overall height of 0.637 inches. The bushing mounts via three bolts arranged on a 1.362-inch bolt circle and requires a minimum base plate thickness of 1 inch. It supports a 20mm clamp shank diameter, making it a precision interface component for repeatable fixture changeovers on machining center tables and modular fixturing plates. Machinists and tooling engineers specify this part when building quick-change workholding setups that demand consistent, repeatable location.

This receiver bushing is used in manufacturing and machine shop environments where modular fixturing and rapid pallet or fixture changeovers are required. The bolt-in recessed mount style keeps the bushing flush with or below the base plate surface, preserving clearance for workpieces and cutting tools. It is a standard component in modular fixturing plate assemblies used on vertical and horizontal machining centers in both production and job-shop settings.

Key Features

• Ball Lock system compatible for repeatable, accurate fixture location
• 20mm inside diameter accepts standard 20mm clamp shanks
• Bolt-in recessed mount using 3-hole pattern on a 1.362-inch bolt circle
• 1.6873-inch outside diameter for precise bore fit in fixturing plates
• 0.637-inch overall height for low-profile integration into base plates
• Requires minimum 1-inch base plate thickness for full engagement

Compatibility

Designed as an OEM-style component for Ball Lock modular fixturing systems using a 20mm clamp shank diameter and bolt-in recessed receiver bushing configurations.

Installation Notes

Installation is typically performed by a machinist or tooling engineer. Power down and lock out any associated machinery before installing or removing receiver bushings from fixturing plates. Ensure the mating bore in the base plate meets the required diameter and surface finish tolerances before pressing or seating the bushing. Verify base plate thickness meets the 1-inch minimum before assembly to ensure full bolt engagement and proper seating depth.