Jergens 49808 Modular Fixturing Liner Secondary Ball Lock

Product Description

The JERGENS 49808 is a secondary ball lock modular fixturing liner designed for precision workholding applications in machine shops and manufacturing environments. With an outside diameter of 1.0018 inches and a 16mm inside diameter, this liner installs into fixture plates to provide repeatable, accurate tool or pin registration. The secondary ball lock system holds the liner securely in the plate without requiring additional fasteners. Plate thickness compatibility is 0.75 inches, with a plate thickness tolerance of plus or minus 0.0050 inches. This component is installed by machinists and tooling technicians building or maintaining modular fixturing systems.

This liner is used in modular fixturing setups on machining centers, milling machines, and dedicated fixture plates where quick changeover and precise location are required. It is suited for both production and prototype environments where a ball lock interface is specified. The secondary designation indicates this liner functions as the receiver component in the ball lock system, working in conjunction with a primary ball lock shank or stud. Typical applications include horizontal and vertical machining centers operating with standardized tooling plate systems.

Key Features

• Secondary ball lock liner type for secure, tool-free retention in fixture plates
• Outside diameter of 1.0018 inches for precise press or slip fit into plate bores
• 16mm inside diameter sized to accept standard ball lock shanks
• Compatible with 0.75 inch plate thickness within a 0.0050 inch tolerance range
• Lightweight at 0.0938 pounds, minimizing added mass to fixturing assemblies
• Engineered for repeatable location in modular fixturing systems

Compatibility

Compatible with ball lock modular fixturing systems requiring a secondary liner with a 1.0018 inch OD, 16mm ID, and 0.75 inch plate thickness. Verify plate bore diameter and thickness before installation.

Installation Notes

Installation is typically performed by a machinist or tooling technician. The bore in the fixture plate must be properly sized to the liner OD before pressing or dropping in the liner. Ensure the fixture plate and associated components are free of chips, burrs, and contaminants prior to installation. Confirm liner seating depth and engagement before applying any clamping load to the assembly.