Ruland Manufacturing QCL-6-A Shaft Collar 3/8 in 6061 Aluminum

3/8 in Quick-Clamp Shaft Collar

The Ruland Manufacturing QCL-6-A is a one-piece aluminium shaft collar designed for 3/8 inch round bores. It uses a quick-clamp mechanism with a stainless-steel screw to secure components on shafts without marring the surface. The collar suits light-duty power-transmission assemblies where frequent adjustment or rapid installation is required.

Verify Bore and Clearance Before Ordering

Confirm that the shaft diameter matches the 3/8 in bore and that the 1 1/2 in outside diameter clears adjacent parts. The 13/32 in width and 0.75 in lever height determine the axial space and tool access needed. Ensure the operating environment is compatible with aluminium and that the quick-clamp torque range meets the application load.

Black Anodised 6061 Aluminium with Stainless Screw

The collar is machined from 6061 aluminium with a black anodised finish for corrosion resistance. The stainless-steel clamping screw reduces galling and allows repeated tightening. The single-piece construction eliminates loose halves, while the lever profile at 0.75 in centre-to-top provides a compact grip for hand adjustment in tight machine layouts.