Gearboxes and swiftness reducers are mechanical speed reduction equipment found in automation control systems.

Speed reducers are mechanical devices generally used for two purposes. The principal use is usually to multiply the amount of torque produced by an input power source to boost the amount of usable work. In addition they reduce the input power supply speed to attain desired output speeds.

Gearboxes are accustomed to increase torque while reducing the rate of a prime mover output shaft (a electric motor crankshaft, for instance). The result shaft of a gearbox rotates at a slower price than the input shaft, which reduction in acceleration produces a mechanical benefit, increasing torque. A gearbox could be set up to accomplish the opposite and offer a rise in shaft speed with a Variable Speed Gearbox reduced amount of torque.

Enclosed-drive speed reducers, also known as gear drives and gearboxes, have two main configurations: in-line and correct angle which use various kinds of gearing. In-line models are commonly made up of helical or spur gears, planetary gears, cycloidal mechanisms, or harmonic wave generators. Correct angle designs are typically made out of worm gearing or bevel gearing, though hybrid drives are also obtainable. The type of software dictates which rate reducer design will best satisfy the requirements.
D- Drive is a variable velocity geared motor, robust step less unit ideal for various industrial applications.The unit is made to provide low output speed at corresponding high output torque. The drive unit is manufactured from standard components and consists of AC squirrel cage motor, variable quickness drive and gearbox with case hardened profile surface helical gears. It can be easily adapted to any machine style. The unit is very compact and save money and time because they are prepared to match drive modules. The interior part of this drive is the variable swiftness pulley enclosed in a casing and connected to the gearbox and engine. The speed variation may be accomplished through a hand wheel. Average life to be expected is about a decade before major maintenance. Belt life would depend on application and environment. General encounter is about three to four 4 years life.
The Ring-cone is a mechanical adjustable speed drive employing a ring and cone friction power train – therefore the name. The inner drive assembly contains an insight disc, a set of planetary cones, a control ring, the cam disc and a pressure control cam. The Ring-cone offers different sizes to take care of electric motor power ranging between 1/4HP – 20HP, and nominal output torque rankings spanning 15 – 130,000 in-lbs. This unique drive offers a speed range of 0 – 800 RPM, and a cam system that adjusts to the surroundings downstream and can withstand a certain amount of shock load.

With a variable frequency drive, the output torque continues to be continuous from base speed right down to the lower limit, whatever it may be for the application. Nevertheless, with the Ring-cone mechanical variable speed drive the output torque raises as the velocity drops. At the low speed range, the result torque approaches 500% of the engine rating providing large breakaway torque values. The mechanical drive can be able to handle a 200% overload capacity throughout the entire speed range. This performance advantage allows the user to set a minimal speed which will help the drive package drive through difficult areas.
For lower speed/higher torque applications, some Zero-Max drives are available with our right angle gearbox. Some Zero-Max drives may be purchased with standard electrical motors or they might be connected to any rotating power resource up to 2000 RPM. Adjustable speed drive quickness adjustments are easily created by moving a lever control through an arc or turning the hand-wheel of a screw type control. In either case, easy and precise speed control configurations are feasible with Zero-Max adjustable swiftness drives – also referred to interchangeably as variable speed drives.