Emechmart- Home to Affordable V-Belt pulleys
V-belt pulleys (also called V-belt sheaves) are devices that transmit power between axles through the use of a V-belt, a mechanical linkage with a trapezoidal cross-section. This equipment are used as a high-speed power transmission solution that is resistant to slipping and misalignment. Emechmart holds the largest v belt pulleys catalogue our online buyers.
The v belt pulley is used to transmit power only between two parallel axles. The most important difference between a V-belt pulley and other types of pulleys (circular belt, flat, etc.) will be the geometry of the groove or grooves located around the circumference of the pulley.
A V-belt is a unique mechanical coupling with a cross-section that resembles an isosceles trapezoid. The V-belt and its complementary pulley form the most efficient belt drive. V-belts were developed in the early days of automobile innovation to improve belt reliability and torque transmission from the crankshaft to the rotating assembly. A v belt pulley standard size is a common type of serpentine belt today.
Specifications V Belt Pulley at Emechmart
The V-belt transmission is a significant improvement over the round or flat belt transmission; The V-belt provides excellent traction, speed and load capacity while enjoying extended service life with easy replacement. Heavy loads actually increase transmission efficiency because they force the belt to move forward in the pulley groove, which improves friction.
Typically, the custom v belt pulleys operate between 1,500 and 6,000 ft/min, with 4,500 ft/min being the ideal capacity for a standard belt. Some narrow V-belts can operate at speeds up to 10,000 ft/min, but these pulleys must be dynamically stable.
V-belt pulleys may be mounted in a side-by-side configuration or a single pulley may have multiple grooves around the perimeter to accommodate multiple-belt drives. This type of drive distributes torque across multiple belts and provides mechanical redundancy.
Most popular Types of V-Belt Pulleys at Emechmart
Different v belt pulley types are used in V-belt transmissions, each with a different implementation. Sometimes flat-belt pulleys are suitable when the back side of the V-belt is used to convert the pulley to a pulley driven in the opposite direction, as is usually done with a ribbed V-belt.
A standard winch is a winch that has traditional dimensions, consisting of one or several grooves, combined with classic, small-engine and hexagon-style V-belts. A companion pulley has integral spokes that run radially on the pulley. This produces a high power-to-weight ratio that is beneficial for fractional horsepower pulleys.
In many V-belt drives the idler pulley is used only as a belt tensioner, but plays an important role in maintaining the tension required to drive the transmission. The idlers can interact with the wedged or flat side of the V-belt as this axle does not need to transmit any torque. Idler pulleys reduce belt service life and drive efficiency, but are required in transmissions where the drive needs to overcome obstacles or the driven pulley cannot maintain sufficient arc contact with the V-belt to transmit torque.
A variable speed pulley has a variable pitch that adjusts to the running RPM, often expressed as a percentage. These pulleys are also useful for holding belt tension for dynamic loads. A step pulley consists of two or more non-adjustable grooves with different pitches around the same shaft. These pulleys adjust the speed ratio of the transmission.
Materials used to make V Belt pulleys
The v belt pulley manufacturers use common materials of manufacture include: Aluminium, brass, cast iron, plastic, stainless steel, steel and zinc alloys.