Flat belt
Flat belt is the most common type. In the form of leather belting, it served as the basic belt drive from the beginning of the Industrial Revolution. They can transmit large amounts of power at high speeds. Flat belts find their widest application where high-speed motion, rather than power, is the main concern. They are very useful where large center distances and small pulleys are involved. They can engage pulleys on both
Wedge v-belts are often classified as a variety of flat belt, but actually they are a separate type. They consist of a very thin belt (0.5-15 millimeters or 100-4000 microns) strip of plastic and occasionally rubber. They are generally intended for low-power (10 hp or 7 kW), high-speed uses, allowing high efficiency (up to 98%) and long life. These are seen in business machines, tape recorders, and other light-duty operations.
There are many types and sizes of commercial industrial V belts on the market today including A,AX,B and BX size v-belts. A and B size v-belts have a smooth inside edge unlike AX and BX size v-belts that have a cogged or notched inside edge more commonly used in high torque situations. If you are uncertain what type should be used in your application check with your equipment distributor or supplier. A v-belt cross reference list can assist you in crossing v-belt numbers, as many vbelt manufactures have different part numbers for the same size v-belts.
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