Pulleys for V-belts - is a very common item is a belt drive, which is used in all kinds of industrial equipment. These pulleys are standardized and vary in profile belt, with which they are used. other parameters, determines the appropriate product, It is the outer diameter and the diameter of the shaft hole, and the number of grooves under the belt (belt drive may consist of a set of belts of equal length, for the transmission of a larger effort). 
Pulley belt transmission made of pig iron, become, aluminum. Material has a direct impact on the cost of the product, its characteristics and durability. The cheapest and widespread are made of cast iron, more expensive - from steel. The most expensive - Aluminum, which are used in the mechanisms, where first of all important product weight.
Since the days of the USSR such products, both pulleys made from rough hole boring and further training bore. To date, the majority of the world's manufacturers of such products makes them a planting hole mounting sleeve. To enter in the transmission job, you should purchase (pulley pole mounting sleeve under the desired diameter of the shaft), further insert bushing into the pulley and place the package on the shaft. Thereafter, tighten the screws (also are included) and get ready for an element to perform work on the transfer of torque.
Pulleys for V-belts in the range of Italian company Sati available profiles: WITH, BUT, AT, WITH.
- Detalal Z profile is produced from a pitch diameter 50 to 800 millimeters, and the number of grooves 1 to 8.
- Detail A profile - from 63 to 1000 millimeters, from 1 to 6 grooves.
- Detail profile b (AT) - from 100 to 1250 millimeters, from 1 to 10 grooves. A part profile C - of 200 to 1250 millimeters, from 1 to 10 grooves.
For the selection of the right products you need to know four parameters - the profile of the applied belt, the diameter of the pitch circle (or the outer diameter), shaft diameter, in which the element is installed, and the required number of grooves for belts. belt profile determined by the width of the upper surface (y is the width of the pulley groove at the top). Pulley Z has a width across the top of the groove - 10 millimeters, BUT - 13 millimeters, b (AT) – 17 millimeter, WITH - 22 millimeter. The number of grooves is determined by visual inspection, and diameter - not carrying out tricky measurement (Using a tape measure and calipers).