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Carr Lock Clamps

The Carr Lock System allows accurately locating and clamping at the same time, with just the turn of a hex wrench. Ideal for mounting quick-change tooling on a subplate. Each mounting point consists of three components: (1) a Carr Lock Clamp, with a precisely ground shank; (2) a Carr Lock Liner Bushing or clearance hole in the top plate; (3) a Carr Lock Receiver Bushing in the subplate. This compact assembly provides considerable holddown force, together with an incredible +/-.0005" repeatability. Made in USA.

Application Information

Each mounting point consists of three components:(1) Carr Lock Clamp, with a precisely ground shank. (2) Carr Lock Liner Bushing or clearance hole in the top plate. (3) Carr Lock Receiver Bushing in the subplate.

Extra-thick top plates can be counterbored to achieve proper clamping thickness (hold thickness to ±.005").

Operation

Turning the clamping screw with a hex wrench advances the large center ball, pushing the three clamping balls outward. These balls engage the angled ID section of the Receiver Bushing, pulling the clamp firmly downward.

Design Considerations & Safety Precautions

Carr Lock Clamps should only be used to locate and clamp flat plates on machine tools. Each top plate should have one Carr Lock mount designated as its primary reference point, and one as its secondary reference point. These two mounts should be as far apart as possible. The secondary reference point should have a relieved liner to avoid redundant location (binding). Additional Carr Lock Clamps can be used for more clamping force, but these should be installed in clearance holes, not locating liners. Carr Lock Clamps must be used with Carr Lock Receiver Bushings for proper operation. Plate thickness must be +/-.005" to achieve full clamping force.

Material

Parts Specification