Specifications:
The QSC Quick Shaft-Locking Clamps are designed with a die-cast zinc body and handle, chrome-plated finish, and a locking block made of cast bronze. The flat spring is made of SUS304 stainless steel. The clamps are available in various sizes, with part numbers QSC10S, QSC12S, QSC14S, QSC15L, QSC16L, and QSC20L, each with specific dimensions and weights.

Features:
These clamps are designed to securely lock a lead screw or slide shaft with ease, making them ideal for applications requiring frequent position adjustments. They offer better workability than conventional methods using adjustable handles or knobs and can be used in limited spaces due to the absence of a large handle swing.

Usage Instructions:
To use, turn the handle down to push the locking block toward the shaft for clamping. Releasing the handle allows the flat spring to return the locking block to its original position. Both faces can be used for installation, and two sides with tapped holes can also be used by removing the setscrews.

Technical Information:
The clamps have specific operating loads, holding torques, and sliding loads, varying by part number. For example, the QSC10S has an operating load of 80 N, holding torque of 2.0 N·m, and sliding load of 220 N. It is important to make position adjustments using a bracket or shim to prevent conflicts between the shaft hole and a shaft. Regular greasing of the cam section and retaining pin is recommended every 30,000 cycles for stable performance.

Notes:
Avoid using hammer taps on the handle or extending the handle with a pipe to prevent damage. Dimensions between the shaft-hole center and the sides are not precise, so adjustments may be necessary during installation.