A gear is a rotating machine part having cut teeth, or cogs, which mesh with another toothed part in order to transmit torque. Two or more gears working in tandem are called a transmission and can produce a mechanical advantage through a gear ratio and thus may be considered a simple machine. Geared devices can change the speed, torque, and direction of a power source. The most common situation is for a gear to mesh with another gear, however a gear can also mesh a non-rotating toothed part, called a rack, thereby producing translation instead of rotation.
The gears in a transmission are analogous to the wheels in a pulley. An advantage of gears is that the teeth of a gear prevent slipping.
When two gears of unequal number of teeth are combined a mechanical advantage is produced, with both the rotational speeds and the torques of the two gears differing in a simple relationship....Click for more Info

Helical Geared Motors is new style hardened gear reducer, have great torque range, use constitutional unit building block design can horizontal mounting and vertical mounting. Shrink disc hollow shaft output. widely application.
Use alloy high strength steel carburizing and quenching, have high efficiency,
Output way: solid shaft, hollow shaft and long life gear and High allowable shaft, radial load, Lower noise, high reliability, structure compact....Click for more Info

Crane Duty Gear Boxes are specifically designed for crane duty applications. Helical gearing is provided for horizontal gear units where as spur gears are provided for vertical gear units. Single, Double and Triple stage Horizontal gear units are recommended for Hoist and Long Travel drive. Three stage vertical gear units are recommended for cross travel drives of the EOT crane.....Click for more Info

A worm drive is a gear arrangement in which a worm (which is a gear in the form of a screw) meshes with a worm gear (which is similar in appearance to a spur gear, and is also called a worm wheel). The terminology is often confused by imprecise use of the term worm gear to refer to the worm, the worm gear, or the worm drive as a unit. Like other gear arrangements, a worm drive can reduce rotational speed or allow higher torque to be transmitted. The image shows a section of a gear box with a worm gear being driven by a worm. A worm is an example of a screw, one of the six simple machines.....Click for more Info

SINGLE SCREW EXTRUDER GEARBOXES : The “E” series single screw extruder gearboxes offered by P.G.Drive have made a prestigious name for itself in the field of plastic extruder industry. The robust and universal mounting design offers the customer with the best available product in the market today. The outstanding product quality and P.G. Drive technical know-how in the field of developing gear boxes for the plastic industry makes us the preferred partner for extruder plant builders.

The product features :
MAXIMUM TORSION STIFFNESS GEAR HOUSING
INBUILT THRUST BEARING
UNIVERSAL MOUNTING CONFIGURATION
LONG LIFE TRANSMISSION ELEMENTS
INTEGRATED COOLING SYSTEM
MAXIMUM OPERATING RELIABILITY
LOW NOISE & SMOOTH RUNNING
....Click for more Info

Worm reduction gearboxes are constructed with an air tight and dust proof cast iron gear casing, they are machined to the highest quality. They are suitably robust and ultra reliable.These gear boxes are suited for uses such as conveyor systems, thermal power plants, crushers, cranes, ball mills, cooling towers and extractors. 

Worm gear boxes are commonly used in all kinds of industry including the paper, sugar, textile, solvent extraction, plastic and leather processing industries as well as power plants, steel industry and waste water treatment. These gear boxes can be used to decrease the speed of processes, they give off low levels operational noise.....Click for more Info

Shaft Mounted Speed Reducers gear boxes are manufactured as per international quality standards which offer speed reduction by directly mounting onto the drive shaft. Shaft Mounted Gear Units (SMGU) offer easy installation and removal.

The gear units offer carburized gear teeth with optimal gear geometry, allowing maximum loading and highest efficiency torque output, for higher rating capacity in the most compact design and casing.

Shaft mount gearboxes have very diverse use in material handling equipment and are widely used in industries such as cement, textile, sugar mills, coal, steel, printing machinery, drugs and pharmaceutical plants etc.....Click for more Info

Bevel gears are gears where the axes of the two shafts intersect and the tooth-bearing faces of the gears themselves are conically shaped. Bevel gears are most often mounted on shafts that are 90 degrees apart, but can be designed to work at other angles as well. The pitch surface of bevel gears is a cone.
 
Bevel gears are classified in different types according to geometry :
Straight bevel gears have conical pitch surface and teeth are straight and tapering towards apex. Spiral bevel gears have curved teeth at an angle allowing tooth contact to be gradual and smooth. Zerol bevel gears are very similar to a bevel gear only exception is the teeth are curved: the ends of each tooth are coplanar with the axis, but the middle of each tooth is swept circumferentially around the gear. Zerol bevel gears can be thought of as spiral bevel gears (which also have curved teeth) but with a spiral angle of zero (so the ends of the teeth align with the axis).
Hypoid bevel gears are similar to spiral bevel but the pitch surfaces are hyperbolic and not conical. Pinion can be offset above, or below, the gear centre, thus allowing larger pinion diameter, and longer life and smoother mesh, with additional ratios e.g., 6:1, 8:1, 10:1. In a limiting case of making the "bevel" surface parallel with the axis of rotation, this configuration resembles a worm drive.....Click for more Info