Helical Gear Speed Reducers
Provide high-efficiency speed reduction through 1, 2, 3, or 4 pieces of gears. Power is transmitted from a high-speed pinion to a slower-speed gear. Helical gears usually operate with their shafts parallel to one another. Both most common types are the concentric (input and output shafts are in range) and parallel shaft (input and result shafts are offset). Single-stage helical gear reducers are usually used for equipment ratios up to about 8:1. Where reduce speeds and higher ratios are needed, double, triple, and quadruple equipment reduction stages may be used.
Worm Gear Speed Reducers
A single reduction acceleration reducer can achieve up to 100:1 reduction ratio in a little package. Referred to as right angle drives, these contain a cylindrical worm with screw threads and a worm. With a single start worm, the worm gear advances only one tooth for each 360-degree convert of the worm. So, whatever the worm’s size, the gear ratio may be the ‘size of the worm equipment to 1′. Higher reduction ratios can be created by using double and triple decrease ratios.
Basic Types of Gearboxes
The purpose of a gearbox is to increase or reduce speed. Consequently, torque output would be the inverse of the function. If the enclosed drive is a speed reducer, the torque output increase; if the drive raises speed, the torque result will decrease. Gear drive selection elements include: shaft orientation, quickness ratio, design type, nature of load, gear rating, environment, mounting position, operating temperature range, and lubrication.
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