The NCY3B Rodless Cylinder - Magnetically Coupled uses industrial strength magnets located in the piston and external carriage to form a single unit that will travel when actuated with air pressure.  The NCY3B series has resin based lube retainers installed on the dust seal to more evenly distribute lubricant for a reduction in minimum operating pressure.  70% longer wear rings will distribute a side load over a larger contact area for improved bearing performance.