Helical Gear Speed Reducers
Provide high-efficiency speed reduction through 1, 2, 3, or 4 pieces of gears. Power is transmitted from a high-rate pinion to a slower-speed gear. Helical gears usually operate with their shafts parallel to each other. The two most common types will be the concentric (input and output shafts are in collection) and parallel shaft (insight and result shafts are offset). Single-stage helical equipment reducers are typically used for equipment ratios up to about 8:1. Where cheaper speeds and higher ratios are necessary, double, triple, and quadruple gear reduction stages can be used.
Worm Gear Speed Reducers
A single reduction velocity reducer can achieve up to 100:1 reduction ratio in a small package. Referred to as right angle drives, these contain a cylindrical worm with screw threads and a worm. With an individual start worm, the worm equipment advances only one tooth for each 360-degree switch of the worm. So, regardless of the worm’s size, the gear ratio may be the ‘size of the worm gear 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 improve or reduce speed. Consequently, torque output would be the inverse of the function. If the enclosed drive is a swiftness reducer, the torque result increase; if the drive improves speed, the torque result will decrease. Gear drive selection elements include: shaft orientation, velocity ratio, design type, nature of load, gear rating, environment, mounting position, working temperature range, and lubrication.
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