• Create your own working prototype of special-purposed shaft collars within hours.
• Accepts 3-D printed inserts for unlimited bore possibilities.
• Master collars available in three sizes in steel, stainless steel and aluminum.

Stafford has introduced SPARC, a rapid prototype and repair collar system, which lets users create their own working prototypes of special-purposed shaft collars within a few hours.

The SPARC (Stafford Prototype and Repair Collar) system features precision machined shaft collar masters which are available from stock and accept 3-D printed inserts.

Combining the clamping strength of a conventional machined shaft collar with the flexibility of unlimited insert configurations, users can create custom-designed inserts with bores to fit virtually any type of shaft and can include holes, bosses, slots, tabs, hubs, pulleys, and other features.

The 3-D printed inserts in the SPARC (Stafford Prototype and Repair Collar) system can be either user-defined or selected from a library of designs offered free from Stafford.

The printing can be done free by the user or from Stafford for a fee and the inserts are designed to mate securely with the master to create a unified working part.

Supplied in steel, stainless steel, or aluminum, masters come in three sizes to accommodate shafts from 1/8” to 2-3/4” O.D.