Poly V Pulley

A Poly V sheave is a type of drive pulley used in a variety of power transmission systems. It is so named due to its multi-grooved design, in which several curved grooves interlock to form a V-shape. The unique design of poly v sheaves allows for more efficient power transmission by allowing multiple belts to engage the same pulley at the same time. This reduces fluctuating loads on machinery, offering a smoother power transfer. Poly V belt sheaves can be used for various applications such as air conditioning, HVAC, automotive, and marine uses.

The Poly-V sheaves include three cross sections: J, L, and M.

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Poly V Belt Pulley Dimensions

Poly V Belt Pulley Specification

Poly V Sheaves Features

Poly-V sheaves are a type of mechanical component used in drive systems, such as belt-driven systems. They are named after the “V” shape of the grooves in the sheave, which are used to guide and hold the multiple ribbed belts (also called Poly-V belts) that transmit power from one sheave to another. Here are some of the key features of Poly-V sheaves:

  1. Multiple Grooves: Poly-V sheaves have multiple grooves, which allow them to transmit power through multiple belts. This results in a higher power density compared to single-groove sheaves, which reduces the size and weight of the drive system.
  2. Compact Design: Due to their multiple grooves, Poly-V sheaves are typically smaller and more compact than single-groove sheaves, which makes them well-suited for applications where space is limited.
  3. High Efficiency: The multiple ribbed belts in a Poly-V drive system provide a large contact area between the belts and sheaves, which results in a more efficient power transmission compared to single-ribbed belts.
  4. Reduced Vibration: The ribbed design of the belts helps to reduce vibration in the drive system, which improves the overall stability of the system and reduces noise.
  5. Versatile: Poly-V sheaves are available in a variety of sizes, materials, and designs to accommodate a range of applications and power requirements.
  6. Maintenance-Free: Unlike chain-driven systems, Poly-V belt-driven systems do not require frequent lubrication, which helps to reduce maintenance costs and improve the longevity of the system.
Poly V Sheave

Poly V Pulley and V Belt

A poly-V pulley and V-belt is a drive system commonly used in power transmission applications.

A poly-V pulley is a type of pulley with multiple V-shaped grooves that engage with the sides of a V-belt. The poly-V design allows for multiple points of contact between the pulley and the belt, which helps to distribute the load more evenly and reduce the chances of slipping. This results in a more efficient and smoother transfer of power compared to a traditional single V-groove pulley.

A V-belt, also known as a V-ribbed belt, is a type of belt with a trapezoidal cross-section that fits into the grooves of a pulley. The V-shape of the belt allows for greater grip and helps to prevent slipping, which is important in high-torque applications. The V-belt is also able to bend around small pulley diameters, which makes it a flexible and compact option for power transmission.

The poly-V pulley and V-belt system is commonly used in a wide range of applications, including automotive engines, HVAC systems, and industrial machinery. It is a reliable and cost-effective solution for transmitting power between two or more shafts.

Poly V Belt Sheaves

Poly V Pulley Application

Poly V pulleys are used in drive systems to transfer rotational power from one shaft to another. They are commonly used in automotive, industrial, and electrical applications, and are known for their smooth, quiet operation and high power transmission efficiency.

In a poly V pulley system, multiple V-shaped grooves are machined into the pulley, allowing for multiple V-shaped belts to be run simultaneously. This design enables the pulley to transmit more power than a traditional single-groove pulley of the same size, and also helps to distribute the load more evenly, reducing the risk of belt slippage and wear.

Poly V pulleys can be used in a variety of applications, including power transmission for drives, conveyors, and fans, as well as for automotive engine and accessory drive systems, alternators, and power steering pumps.

When selecting a poly V pulley for a specific application, it is important to consider factors such as belt size, pulley diameter, speed and torque requirements, and the operating environment, in order to ensure that the pulley system will perform optimally.

WLY is one of the experienced poly v pulley manufacturers in China. We offer high-quality poly v belt sheaves at reasonable prices. Contact us now to get a quote!


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