Showmark makes it easy to Buy Online. We sell Guide Wheels, Spool Adapters, Spools, other parts and complete machines.

Guide Wheels – Showmark stocks 80mm and 30mm OD Guide Wheels (sheaves). Our sheaves feature smooth surfaces and very efficient bearings making them ideal for use with optical fiber and other delicate wires and filaments.

Spools – padded and standard or doublewide. Our padded spools come in a variety of outside dimensions. The standard width and doublewide fiber optic wire spools are ideal for fiber optic and other fine wires.

Spool Adapters – Our Universal Spool Adapters come with 10mm shafts, 15mm shafts and 20mm shafts.

Spool adapters allow you to mount any spool with the following arbor (center bore) sizes:
—for 10mm shafts – adapts to 12-46mm arbor size
—for 15mm shafts – adapts to 17-53mm arbor size
—for 20mm shafts – adapts to 22-58mm arbor size

Just let us know how we can help you (610) 458-0304.

For orders and shipping outside the U.S., please call or email Showmark at