PIV Chain Drive Transmissions
PIV Chain Drive Transmissions
Adjustable Variable Speed Transmissions and variators feature a metal PIV (Positively Infinitely Variable) chain that positively engages grooves in conical wheels, providing a drive that does not slip. These PIV chain drive transmissions are used in printing presses, textile machinery, paper converting, and packaging equipment, among other applications.
Repair & Upgrade Services
Repair and Upgrade
Backed by over 50 years experience, our services include repair, rework and replacement of internal components or the upgrade of entire transmission or gearbox assemblies now in the field. In fact, our customers are delighted that their Specon® and Cubic® products in service for several decades may be economically repaired to like new working condition at our North Carolina facility.

Although we specialize in Specon® PIV chain transmissions and Cubic® Planetary gear drives, we have the capability and expertise to repair virtually any mechanical variable speed drive; including the major domestically produced mechanical PIV variable speed drives.

Repair and Upgrade
Fairchild maintains an extensive inventory of OEM original housings, gears, PIV replacement chains, wheel faces, bearings, seals, couplings, clutches, shafts and other parts to provide parts to you quickly at a competitive price.
Compact Differential Gearboxes
Compact Differential Gearboxes
The CUBIC® Differential Planetary Gear Transmissions offer the advantage of precision register control or any in-motion timing adjustment in a compact housing. The CUBIC® is available with torque capacities of 500 to 10000 in lb and are often used in conveyor drives, printing presses, paper and web machinery, plastic film machinery and packaging applications.
Phase Shifting Differential Gearboxes
Phase Shifting Differential Gearboxes
The Phase Shifting Worm Gear Differential Transmission is designed for phase shifting, register control or any in-motion timing adjustment and is capable of providing true line shaft phase shifting capability. These Phase Shifting Worm Gear Differential Transmissions are used in printing presses, paper machinery, film processing, paper cut off, synthetic fiber manufacturing, alternator drives, textile machinery, metering pumps and other industrial applications.
Differential Draw Transmissions
Differential Draw Transmissions
For unique applications, Fairchild combines the PIV chain variator transmission concept with a mechanical differential draw mechanism to provide smooth durable operation in an infinitely adjustable transmission unit. These units are designed for applications such as alternator drives, metering pumps, textile machinery, printing presses and in pulp and paper production.