dubai, United Arab Emirates
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We offer the best product range of Pulleys and Winches.
Pulley A pulley is a wheel on an axle that is designed to support movement of a cable or belt along its circumference. Pulleys are used in a variety of ways to lift loads, apply forces, and to transmit power. A belt and pulley system is characterized by two or more pulleys in common to a belt. This allows for mechanical power, torque, and speed to be transmitted across axles. If the pulleys are of differing diameters, a mechanical advantage is realized. A belt drive is analogous to that of a chain drive, however a belt sheave may be smooth (devoid of discrete interlocking members as would be found on a chain sprocket, spur gear, or timing belt) so that the mechanical advantage is approximately given by the ratio of the pitch diameter of the sheaves only, not fixed exactly by the ratio of teeth as with gears and sprockets. In the case of a drum-style pulley, without a groove or flanges, the pulley often is slightly convex to keep the flat belt centered. It is sometimes referred to as a crowned pulley. Though once widely used in factory line shafts, this type of pulley is still found driving the rotating brush in upright vacuum cleaners. Agricultural tractors built up to the early 1950s generally had a belt pulley. It had limited use as the tractor and equipment being powered needed to be stationary. It has thus been replaced by other mechanisms, such as power take-off and hydraulics.
WINCHES A winch is a mechanical device that is used to pull in or let out or otherwise adjust the "tension" of a rope or wire rope (also called "cable" or "wire cable"). In its simplest form it consists of a spool and attached hand crank. In larger forms, winches stand at the heart of machines as diverse as tow trucks, steam shovels and elevators. The spool can also be called the winch drum. More elaborate designs have gear assemblies and can be powered by electric, hydraulic, pneumatic or internal combustion drives. Some may include a solenoid brake and/or a mechanical brake or ratchet and pawl device that prevents it from unwinding unless the pawl is retracted. A. Electrical Powered Winches: Electrical powered winches come in both fixed and portable models. These power winches offer machine cut gears, enclosed oil baths and durable cast aluminum construction. They also feature internal mechanical brakes. B. Heavy Duty Winches: Heavy duty winches are intended for the most demanding lifting applications and are able to lift up to 76, 000 lbs. They include enclosed machine cut gearing and worm/spur gears.
GOODWIN TRADING LLC (GOODWIN TRADING LLC)P.O. Box 75983, Al Quoz Industrial Area 4,
Dubai, U.A.E., United Arab Emirates
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