Product Description

Professional American Standard 12C Series Cast Iron QD Sheaves For C Belts

12C series 12 groove QD bushing pulley is used for C, CX, belt, and CC v belt; They range in diameter from 9.40 “to 50.40”. Depending on the pulley size, they use J or M QD (quick disassembly) bushings, which we also have in stock. Most of our 12C QD pulleys are high-strength grade 35 cast iron, phosphate coated, and coated with anti-corrosion paint. All these are balanced at the factory to ensure the smooth operation of the machine.

12C QD Sheave Size Chart

Features of V-belt pulley
The V-pulley has several advantages. These include higher operating torque and friction protection. In addition, they provide mechanical redundancy. These benefits are essential for any type of manufacturing process. In this article, we will discuss some of these features.
Mechanical redundancy
V-pulleys are commonly used in automotive applications to transfer power from static motors to rotating parts. Due to the complex loading conditions and installation environment, its design and evaluation are challenging. Therefore, careful consideration should be given to the creation of v-pulley.
The cross-section of the V-belt is usually trapezoidal, with the top and bottom parallel. Cross-section width, maximum distance, and pitch are necessary. The inside and outside length of the V-belt is also essential for correctly matching the belt and pulley. In addition, knowing these dimensions will help you choose the right V-belt size and shape for your application.
A significant advantage of the v-pulley is the ability to distribute torque between multiple belts. This enables more efficient transmission and better load capacity. In addition, V-belts are very durable and can withstand high loads. This means they can be used for industrial applications of various horsepower.

Prevent friction damage
The V-pulley must be protected from friction damage. Friction damage may cause the belt to slip. Fortunately, there are several ways to prevent this problem. These methods include replacing worn pulleys. In addition, modifying the design of the pulley can also improve its durability.
One of the easiest ways to protect the v-pulley from friction damage is to ensure that the belt is correctly aligned. This is critical because misalignment can lead to belt stretching. When the belt is not correctly aligned, the auxiliary belt span makes initial contact only with 1 side of the groove. This will cause excessive belt swing and damage to the belt and bearings.
Polyurethane belts can be used to protect V-belts from friction damage. The density and elastic coefficient of polyurethane tape are higher than rubber tape. They also have a higher thermal resistance than rubber.
Higher operating torque
The high operating torque of the V-pulley is essential for efficient motors and drives. However, the power rating of V-belts depends on several factors. When selecting V-belts, the operating torque should match the belt size. The strength of the belt, the contact angle between the belt and pulley, and the belt speed (in m/s) are essential.
The V-belt consists of high-strength ropes wrapped in a rubber or fabric shell. The core provides tensile strength, while the body forms a friction surface with the pulley. Different belts have other characteristics, such as flame retardancy, oil resistance, and anti-static ability. Typically, V-belts are manufactured at an angle of 40 degrees, but this may vary. When bending around the pulley, the tip must be used to accommodate the slight bulge on the side of the belt.
Increase belt width
When comparing V-pulleys, the middle diameter must be considered. This is a factor that affects torque and speed. Ideally, the shaft speed should be 15-20 m/s, and the belt speed should be in the same area.
V-belts are made of high-strength ropes embedded in synthetic rubber. When the belt contacts the pulley, the core provides tensile strength, and the housing includes friction. There are different types of V-belt structures, including anti-static and oil-proof. In addition, some types of V-belts are flame retardant or flame retardant. V-belts usually have a belt angle of 40 degrees but may vary slightly. The rise of the belt is critical because when it is bent around the pulley, it can accommodate the slight bulge on the side of the belt.
When selecting a V-belt, make sure the belt fits in the groove. If the belt is more comprehensive, the track is easier to wear, and the belt life is reduced by 50%. The V-belt should be installed within half an inch of the pulley surface.
Reduced costs
The V-belt pulley is widely used in industrial applications driven by an induction motor. They provide flexible power transmission at a low cost. However, they are prone to mechanical defects, which reduce efficiency and overall life. Existing V-pulley testing methods require physical access to the system and use expensive sensors to determine the cause of the defect.
Due to the short center of the V-pulley, there is a small slip allowance. In addition, since the belt is elastic, the load applied to the belt will cause the belt to stretch, resulting in a loss of efficiency. This effect is often referred to as slip.
The design of the new V-belt pulley is changing, and its advantages are various. Many pulleys are lighter and more durable than gray cast iron pulleys. Its unique ventilation slot also helps to reduce the belt temperature by about 17 degrees Celsius. A temperature drop of 10 ° C means a 50% increase in belt life.
Application of QD pulley
The products are widely used in the power output of small diesel engines, agricultural vehicles, tractors, automobiles, mining machinery, machining equipment, textile machinery, packaging machinery, lathes, forging machinery, some small horsepower motorcycle power transmission, agricultural machinery power transmission, air compressors, reducers, reducers, and generators.

Company Information

###

###

wholesaler

editor by czh 2022-11-26