Corrugated Box Manufacturer India

P.I.V. Gear Box


Maximum Speed Setting adjusts input shaft wheels close together to form a large driving diameter. This automatically separates output shaft wheels to form a small driven diameter.

Manimum Speed Setting adjusts input shaft wheels wide apart to form a small driving diameter. This automatically closes output shaft wheels to form a large driven diameter.

Here is the P.LY. chain drive - positive power transmission yet infinitely variable - really stepless speed control. The sprockets of the PolY chain drive are two pairs of the cone - shaped radially - grooved wheels mounted on splined shafts.

The chain is made from unique links which contain packes of self - tooth - forming hardened steel slats. Each slat is free to move sidewise and conform to the tooth shape of the paired sprockets.

When the paired wheels are far apart the chain actually operates around a small diameter. When the wheels are close together the chain operates around a large diameter.

This principle - varying the driving and driven diameters - is the principle on which all variable speed drives operate. Only the P.!.Y. applies the principle to a chain drive and thus combines infinitely variable speed control with positive power transmission.


Positive and exact - The P.LY. can't slip. Because it can't slip, the P.LY. can provide accurate speeds, infinitely variable within the range of each unit. This makes the P.LY. a unique variable speed transmission, particularly useful where delicate or sensitive operations are involved.

Long dependable life - Proper design and care ful manufacture of parts, broad use of many alloy steels heat-treated for maximum strength and wear resistance, and automatic lubrication from a common reservoir, insure long life as attested by many P.LY. installations with over 25 years of service.

Low maintenance requirements - Maintenanace is limited to maintaining correct chain tension and oil level.

An infinite number of speeds between m.aximum and minimum settings, can be easily obtained by simply turning the control screw while -the P.1V:-is op'erating. ~The control screw may also be activated by many types of automatic controls.


P.I.V. Gear Box - Technical Specification

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