Gears are toothed, mechanical transmission elements used to transfer motion and power between machine components. Operating in mated pairs, gears mesh their teeth with the teeth of another corresponding gear or toothed component which prevents slippage during the transmission process. Each gear or toothed component is attached to a machine shaft or base component, therefore when the driving gear rotates along with its shaft component, the driven gear rotates or translates its shaft component. Depending on the design and construction of the gear pair, the transference of motion between the driving shaft and the driven shaft can result in a change of the direction of rotation or movement. Gears are available in a variety of designs, constructions, and configurations to suit a wide range of industries and applications.
There are many types of gears such as spur gears, helical gears, bevel gears, worm gears, gear rack, etc. These can be broadly classified by looking at the positions of axes such as parallel shafts, intersecting shafts and non-intersecting shafts. The most commonly used gears are
Gears having cylindrical pitch surfaces are called cylindrical gears. Spur gears belong to the parallel shaft gear group and are cylindrical gears with a tooth line which is straight and parallel to the shaft. Spur gears are the most widely used gears that can achieve high accuracy with relatively easy production processes.
Helical gears are used with parallel shafts similar to spur gears and are cylindrical gears with winding tooth lines. They have better teeth meshing than spur gears and have superior quietness and can transmit higher loads, making them suitable for high speed applications.
Bevel gears have a cone shaped appearance and are used to transmit force between two shafts which intersect at one point (intersecting shafts). A bevel gear has a cone as its pitch surface and its teeth are cut along the cone.
Screw gears are a pair of same hand helical gears with the twist angle of 45° on non-parallel, non-intersecting shafts. Because the tooth contact is a point, their load carrying capacity is low and they are not suitable for large power transmission.
A screw shape cut on a shaft is the worm, the mating gear is the worm wheel, and together on non-intersecting shafts is called a worm gear. Worms and worm wheels are not limited to cylindrical shapes. There is the hour-glass type which can increase the contact ratio, but production becomes more difficult.
A gear reducer is a mechanical transmission device that connects a motor to a driven load. It is also known as a gearbox. It allows you to modify the torque and speed between a motor and a load. Reduction gear assemblies are made up of series of gears. There are four main types of gear reducers: planetary gear reducers, worm gear reducers, gear train gear reducers and bevel gear reducers.
We at American Gear Llc based in Houston, Texas, with over hundred years of experience repair and rebuild gear box by manufacturers like Falk, Rexnord, Amarillo, Philadelphia, Nord, Marley,Lufkin, Rexnord to name a few.
As a dependable gearbox repair and rebuilding company we are chosen by large and small manufacturers like steel and paper mills, utility power plants, oil refineries, chemical processing facilities, Petro chemical industries, Defence and other industrial plants from around the world that depend on speed reducers and gear box rely on American Gear Llc.
Having been in the industry for over a hundred years we have the best engineers in the industry to reverse engineer your gear components back to OEM or better with a warranty or exchange your unit and purchase one of fully rebuilt units.
For all your requirements on Gears and Reducers kindly get in touch with us at 713.360.6995 and take some time to visit our website at http://americangearllc.com/.