Fairchild Industrial
Products Company
3920 Westpoint Blvd.
Winston-Salem, NC 27103
Phone: (336) 659-3400
Fax: (336) 659-9323
sales@specontransmission.com

 
   
  Products & Downloads
   
 
Vari-Chain

Vari-Chain® PIV Chain Transmission

Adjustable Variable Speed Transmissions and variators feature a metal PIV chain that positively engages grooves in conical wheels, providing a drive that does not slip. Seven sizes ranging from fractional to fifteen horsepower and speed ranges of 2:1 to 6:1 are available in various configurations and arrangements.  These PIV chain drive transmissions are used in printing presses, textile machinery, paper converting, and packaging equipment, among other applications.


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VCD (High-Power Vari-Chain)

High-Power Vari-Chain® PIV Chain Drive Transmission (VCD)

A mechanical differential is coupled to the VARI-CHAIN® PIV Chain Transmission variator drive for applications requiring more power and operating accuracy. Three standard sizes with three models in each size ranging from 15 to 45 horsepower and speed ranges of 1.4:1 to 2.5:1 are available. For this arrangement, the input is constant and the output is variable.  These PIV chain drive transmissions are used in pump drives, extractor drives, machine tool drives, screw conveyors, and winder drives, among other applications.

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Differential Draw Transmissions

Differential Draw Transmission (MDD)

The relatively wide speed range of the VARI-CHAIN® PIV Chain Transmission variator is compressed by means of appropriate connection to differential gearing which results in extremely accurate control of speed. Inherent operating accuracy over 1000 times that of the VARI-CHAIN® PIV chain drive is attainable. Seven sizes ranging from 4.5 through 45 horsepower and speed ranges of 3% to 20% are available. These PIV chain drive 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.

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Harmonic Drive Draw Transmission

Harmonic Drive® Draw Transmission

The HARMONIC DRIVE® Draw Transmission incorporates strain wave gearing principles with a rugged PIV chain drive mechanism which allow a high single stage differential ratio. It has high torque capacity and near zero backlash. Six sizes ranging from 4.5 through 45 horsepower and with available speed ranges varying from 0.35% to 2.6%.   These units are designed for use in offset printing, textile machinery, alternator drives, textile machinery, metering pumps and other industrial applications.

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Mechanical Differential Wide Speed Range Transmissions

Mechanical Differential Wide Speed Range Transmission (MD)

Wide Speed Range PIV chain drive transmissions are suitable for applications requiring 20:1, 50:1 and 100:1 speed ranges, although the range of this unit is not limited to these figures. Six sizes ranging from one through ten horsepower with infinite speed range, including zero, are available. PIV Mechanical Differential Transmissions can be operated at or near zero rpm output setting for any length of time without causing damage to any component.  These PIV chain drive transmissions are used in pump drives, extractor drives, machine tool drives, screw conveyors, and winder drives, among other applications.

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Speed & Ratio Control | Position or Register Control | Speed & Postion/Register Control