Jergens 49712 Ball Lock Modular Fixturing Liner 1.3772in Od

Product Description

The JERGENS 49712 is a primary ball lock modular fixturing liner designed for use in precision workholding and modular fixturing systems. It features an outside diameter of 1.3772 inches and an inside diameter of 25mm, making it a direct interface component between the fixture plate and the ball lock receiver stud. The liner is rated for a plate thickness of 1 inch with a plate thickness tolerance of plus or minus 0.0050 inches. This part is installed by tooling engineers, fixturing technicians, and machining setup personnel who require repeatable, accurate pallet and fixture positioning on CNC machine tools.

The 49712 is suited for use in modular fixturing setups where ball lock systems are used to achieve rapid, repeatable workpiece location. Typical applications include production machining environments where fixture plates must be located and locked with precision across multiple setups. The liner accepts a 25mm ID interface and is compatible with ball lock receiver studs in plate-mounted configurations. It is appropriate for use in both horizontal and vertical machining center fixtures wherever primary location is required.

Key Features

• Outside diameter of 1.3772 inches for precision fit in fixture plate bores
• 25mm inside diameter interfaces directly with ball lock receiver studs
• Designed for 1 inch plate thickness with a tolerance of plus or minus 0.0050 inches
• Primary liner designation provides the main location reference in ball lock modular fixturing systems
• Lightweight at 0.2 pounds, minimizing added mass to the fixture assembly

Compatibility

Designed as an OEM-style component for use in JERGENS ball lock modular fixturing systems requiring a primary liner with a 1.3772 inch OD and 25mm ID in 1 inch thick fixture plates.

Installation Notes

Installation is performed by qualified tooling or fixturing technicians. The fixture plate should be secured and all machine axes powered down or locked out before installing or replacing liners. Ensure the bore in the fixture plate is clean and within tolerance before pressing or fitting the liner to avoid dimensional interference. Do not force the liner into an undersized bore, as this can compromise the precision fit required for accurate ball lock location.