Belting on IndustryNet
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BELTING (23 companies)
BELTING - Conveyor (160 companies)
BELTING - Elevator (1 company)
BELTING - Industrial (44 companies)
BELTING - Leather (3 companies)
BELTING - Rubber (19 companies)
BELTING - Teflon™ (Teflon™ is a registered trademark of Chemours) (1 company)
BELTING - Urethane (5 companies)
ABRASIVE BELT GRINDERS (2 companies)
ABRASIVE BELT GRINDING (1 company)
ABRASIVE BELTS (7 companies)
BELT CLIPS (1 company)
BELT GRINDING (0 companies)
BELT GUIDES (1 company)
BELT SANDERS (0 companies)
BELTS (APPAREL) (67 companies)
BELTS - Automotive (1 company)
BELTS - Drive (3 companies)
BELTS - Timing (4 companies)
BELTS - V (5 companies)
CONVEYORS - Belt (61 companies)
POWER TRANSMISSION BELTING (5 companies)
SAFETY BELTS & RESTRAINTS (8 companies)
SEAT BELTS (11 companies)
TENSIONERS - Belt (2 companies)
A belt is a loop of flexible material used to mechanically link two or more rotating shafts, most often parallel. Belts may be used to transmit power efficiently, or to track relative movement. Belts are looped over pulleys and may have a twist between the pulleys, and the shafts need not be parallel. In a two pulley system, the belt can either drive the pulleys normally in one direction, or the belt may be crossed, so that the direction of the driven shaft is reversed. As a source of motion, a conveyor belt is one application where the belt is adapted to continuously carry a load between two points.
Belts are the cheapest utility for power transmission between shafts that may not be axially aligned. Power transmission is achieved by specially designed belts and pulleys.The demands of a belt drive transmission system are large and this has led to many variations on the theme. They run smoothly and with little noise, and cushion motor and bearingsagainst load changes, albeit with less strength than gears or chains. However, improvements in belt engineering allow use of belts in systems that only formerly allowed chains or gears.
Belt drive is simple, inexpensive, and does not require axially aligned shafts. It helps protect the machinery from overload and jam, and damps and isolates noise and vibration.Load fluctuations are shock-absorbed; they need no lubrication and minimal maintenance. They have high efficiency, high tolerance for misalignment, and are of relatively low cost if the shafts are far apart.The clutch action is activated by releasing belt tension. Different speeds can be obtained by step or tapered pulleys.
The angular-velocity ratio may not be constant or equal to that of the pulley diameters, due to slip and stretch. However, this problem has been largely solved by the use of toothed belts. Temperatures range from −31 °F (−35 °C) to 185 °F (85 °C). Adjustment of center distance or the addition of an idler pulley is crucial to compensate for wear and stretch.
There are different types of belts: flat belts, rope drives, round belts, V belts, multi-groove belts, ribbed belts, film belts, timing belts, specialty belts and rolling roads.
The material, length, and cross-section size and shape are required to fully specify a belt. The length of the belt is the sum of the central length of the system on both sides, half the circumference of both pulleys, and the square of the sum or the difference of the radii. So when dividing by the central distance, it can be visualized as the central distance times the height that gives the same squared value of the radius difference on both sides.
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