Drive Belt

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Drive Belt

 

the flexible element of a belt drive. Since belts largely determine the operating capacity and durability of belt drives, they should have high traction and fatigue strength, sufficient flexibility, and as high a coefficient of friction as possible. Depending on the shape of their cross sections, belts are classified as flat belts, V-belts, multiple V-belts, and round belts.

Flat belts may be leather, rubberized, or fabric (cotton or wool). Leather belts are made from strips of high-quality hide that are glued or sewn together. Rubberized belts consist of several layers of a strong fabric, such as belting, held together by vulcanized rubber; these are the belts most often used in belt drives. Fabric belts are made of several layers of strong cotton or wool yarn. V-belts use several layers of cord fabric or strings in a rubber filler. The outer surface of the belts is wrapped with several layers of rubberized fabric. Cog belts are V-belts that have transverse teeth on the underside to increase flexibility. Multiple V-belts have a flat outer surface and lengthwise V-shaped protrusions on the underside; they are reinforced with braided cord.

Round belts are made either of cotton or leather and usually have a small diameter (4–8 mm). The use of polymer belts made from polyamide resins is promising; the belts can transmit high powers (hundreds of kilowatts) at high speeds (up to 100 m/sec).

A. A. PARKHOMENKO

References in periodicals archive ?
Tenders Are Invited For Drive Belts Of Rus6000 Cylindrical Grinding Machine(This Is Strictly An E-Tender.
34-inch thick, acetal main belt, a series of secondary drive belts underneath it control the speed and rotation of the balls to manipulate packages.
A new motor support allows drive belts to be stretched hydraulically, and lifting points have been redesigned to safely raise the HP5.
At Hall 25, Stand B18, the focus will be on products such as drive belts, hoses, hose lines and air spring systems.
Today, the facts are, that the technology, design engineering and advanced materials built into the latest 'V-Belts', especially when properly specified, fitted and maintained, can now operate at efficiency levels of up to 97%, which ensures the higher, more efficient energy output levels designed into today's motors, is fully delivered through their correctly specified drive belts.
Divorcee Mr Gordon has booked it in for 857 oil changes, 30 new drive belts, 150 fresh points and spark plugs.
According to the report, the car has had 857 oil changes, 30 new drive belts, 150 fresh points and spark plugs and 120 bottles of transmission liquid.
Designed by Denver-based advertising and design firm Cactus, the site makes it easier for consumers to purchase bikes equipped with Carbon Drive belts.
As part of the project, fixed speed AHUs were found to be very inefficient and were therefore refurbished with new inverter panels, motors and drive belts to reduce the speed of each fan without compromising the quality of air delivered to the production facility, in order to increase efficiency.
The new warehouse stocks everything from drive belts to fluid cleanup kits, and work boots to tool bags.
Sewing machines were always temporary--slack drive belts and lithium grease on gears, and women whirring around me like wasps in nests of cloth.
Low maintenance, compact drives, permit five minute exchange, and are free of couplings, drive belts, chain, sprockets, and tensioning requirements.