cooling-tower-part

AMARILLO GEAR BOX

   Design features and ratings are in accordance with, or exceed, the minimum requirement of AGMA (American Gear Manufacturers Association) and CTI (Cooling Technology Institute) standards.

TYPES OF REDUCTION GEARS

There are mainly two types of reduction gears:



  1. Single reduction gear
  2. Double reduction gear
Gear-box

Single Reduction gear


This arrangement consists of only one one pair of gears. The reduction gear box consists of ports through which the propeller shaft and engine shaft enters the assembly. A small gear known as a pinion is driven by the incoming engine shaft. The pinion directly drives a large gear mounted on the propeller shaft. The speed is adjusted by making the ratio of the speed reduction to the diameter of pinion and gear proportional. Generally, a single gear assembly has a gear double the size of a pinion.

Gear-box

Double Reduction gear


Double reduction gears are generally used in applications involving very high speeds. In this arrangement the pinion is connected to the input shaft using a flexible coupling. The pinion is connected to an intermediate gear known as the first reduction gear. The first reduction gear is then connected to a low speed pinion with the help of one more shaft. This pinion is connected to the second reduction gear mounted directly on the propeller shaft. Such arrangement facilitates the reduction of speed to a ratio as high as 20:1.

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