Gearboxes and velocity reducers are mechanical acceleration reduction equipment used in automation control systems.

Rate reducers are mechanical gadgets generally used for two purposes. The primary use is usually to multiply the amount of torque generated by an insight power source to increase the quantity of usable work. In addition they reduce the input power source speed to achieve desired output speeds.

Gearboxes are used to increase torque while reducing the rate of a prime mover result shaft (a motor crankshaft, for example). The result shaft of a gearbox rotates at a slower rate compared to the input shaft, and this reduction in velocity produces a mechanical advantage, increasing torque. A gearbox could be set up to do the opposite and provide a rise in shaft acceleration with a reduction 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 versions are commonly made up of helical or spur gears, planetary gears, cycloidal mechanisms, or harmonic wave generators. Correct angle designs are usually made with worm gearing or bevel gearing, though hybrid drives are also obtainable. The type of application dictates which velocity reducer design will best satisfy the requirements.
D- Drive is a variable swiftness geared motor, robust step less unit suitable for various industrial applications.The unit is designed to provide low output speed at corresponding high output torque. The drive device is manufactured from standard parts and consists of AC squirrel cage engine, variable velocity drive and gearbox with case hardened profile ground helical gears. It could be quickly adapted to any machine style. The machine is quite compact and save money and time because they are ready to match drive modules. The interior part of this drive is the variable swiftness pulley enclosed in a casing and linked to the gearbox and electric motor. The speed variation can be achieved by means of a hand wheel. Average life to be expected is about a decade before main Variable Speed Gearbox maintenance. Belt life would depend on program and environment. General encounter is about 3 to 4 4 years life.
The Ring-cone is a mechanical adjustable speed drive utilizing a ring and cone friction power train – therefore the name. The inner drive assembly includes an input disc, a couple of planetary cones, a control ring, the cam disc and a pressure control cam. The Ring-cone has different sizes to take care of engine power ranging between 1/4HP – 20HP, and nominal result torque rankings spanning 15 – 130,000 in-lbs. This original drive provides a speed selection 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 remains continuous from base speed down to the lower limit, whatever it might be for the application. Nevertheless, with the Ring-cone mechanical variable speed drive the output torque increases as the speed drops. At the reduced speed range, the result torque techniques 500% of the engine rating providing huge breakaway torque values. The mechanical drive can be capable of handling a 200% overload capability throughout the entire speed range. This performance advantage allows the user to set a low speed that will help the drive package force through difficult areas.
For lower acceleration/higher torque applications, some Zero-Max drives can be found with our correct angle gearbox. Some Zero-Max drives could be purchased with standard electric motors or they may be linked to any rotating power supply up to 2000 RPM. Adjustable speed drive quickness adjustments are easily made by moving a lever control via an arc or turning the hand-wheel of a screw type control. In any case, easy and exact speed control configurations are possible with Zero-Max adjustable velocity drives – also referred to interchangeably as variable acceleration drives.