· European standards :
a) V-belt pulley for taper bushing: SPZ, SPA, SPB, SPC
b) Adjustable speed V-belt pulleys and variable speed pulleys
c) Flat belt pulleys and conveyor belt pulleys
· Bore: Pilot bore, finish bore, taper bore, and bore for QD bushing
· Parts can be made according to drawings or samples
We have got many patent certifacates and authorizations for our casting parts.
Packaging & Shipping
Normally we pack the goods with plastic film and wooden pallet, if you have any special requests feel free to advise us.
HangZhou CHINAMFG Machinery Equipment Co., Ltd. was established on February 1st, 2018. It is located at No. 27, Xihu (West Lake) Dis.shao Avenue, South China Advanced Equipment Park, Xihu (West Lake) Dis. District, HangZhou City, ZheJiang Province China. It covers an area of 40,000 square CHINAMFG and a total of 27,000 square CHINAMFG of workshops, with a total investment of 120 million RMB. So far, there are more than 140 employees, more than 100 workshop workers, 3 senior engineers, 5 quality inspectors, 3 purchasing personnel, and more than 20 persons of all functional departments. The predecessor of the company was HangZhou Zhuwang Machinery Equipment Co., Ltd., which was established on September 26th, 2014.
The company is equipped with a set of fully automatic double-head static pressure casting production line equipment, sand mold size 1200*1000*250/250, a total of 202 sand boxes, with a set of 2*3tons electric CHINAMFG and a set of 2*2tons electric furnace, a set of 120-ton sand processing equipment, realizes automatic operation of casting production, and can produce 5,000 tons of various castings every month, and can produce castings with specifications of 5-200 kg.
The company is specializing in producing and selling castings of various specifications, such as: precision castings, auto parts castings, mechanical castings, valve castings, etc. Our company’s product quality is high-quality, and we always adhere to and implement the “quality is the foundation of enterprise survival, and provide users with satisfactory products and services are our CHINAMFG pursuit “quality policy.
The company’s products are all in line with the national standard (GB), with rich varieties and complete specifications. They are widely used in petroleum, chemical, electric power, boiler, ship, machinery and other industries. They have been sold around over the country and have been well received by many customers.
After Sales Service
For after-sale stage, our service team always keep close contact with you and always stand by at your service. Our warranty is 12 months after delivery. If there is any defect about our products and our service, please keep us informed. We will deal with them unconditionally.
1) What is your main product?
Our major products are V-belt pulleys, manhole covers and types of casting parts.
2) Do you have MOQ for your product?
Normally our MOQ is 1*20 feet container, but if you want to make some trial orders, feel free to contact us.
3) How about your delivery time?
In hot season it is about 1 month, in slack season it is only about 15 workdays.
4) What is your payment term?
T/T, L/C, Western Union
5) Can you send me a price list?
Of course, pls contact us and get it.
6) Can you provide samples?
Sure, free samples will be provided, just contact us.
|Pulley Sizes:||Type C|
|Application:||Chemical Industry, Grain Transport, Mining Transport, Power Plant, Agricultural Machine|
Can V pulleys withstand variations in environmental conditions?
V pulleys are designed to withstand variations in environmental conditions to a certain extent. However, their ability to withstand different environmental factors depends on several factors, including the materials used, the specific design of the pulley, and the maintenance practices employed. Here is a detailed explanation:
V pulleys can generally withstand a wide range of temperatures. The specific temperature limits depend on the materials used for construction. For example:
- Cast iron and steel pulleys can handle high temperatures and are suitable for applications in industrial environments.
- Aluminum pulleys have a lower temperature limit, and excessive heat can affect their structural integrity.
- Plastic pulleys may have temperature limitations, and exposure to high temperatures can cause deformation or melting.
It’s important to consider the temperature range in which the V pulleys will operate and select materials accordingly.
2. Moisture and Corrosion:
V pulleys can be susceptible to corrosion, particularly if they are made of materials like cast iron or steel. Exposure to moisture, humidity, or corrosive substances in the environment can lead to rust or degradation of the pulley components.
To mitigate corrosion risks, protective measures can be taken, such as:
- Using corrosion-resistant materials like stainless steel or aluminum alloy.
- Applying coatings or finishes like zinc plating, powder coating, or anodizing to provide a barrier against moisture and corrosive agents.
- Regular cleaning and maintenance to remove accumulated dirt, debris, or corrosive substances.
3. Dust and Contaminants:
V pulleys may be exposed to dust, dirt, and other contaminants present in the environment. These particles can accumulate in the pulley grooves, affecting the grip and performance of the V-belt.
To minimize the impact of dust and contaminants:
- Implement proper guarding to prevent the ingress of debris and contaminants.
- Regularly clean the pulleys to remove accumulated dirt and ensure smooth belt operation.
- Consider using pulley covers or seals to provide additional protection against contamination.
4. Shock and Vibration:
V pulleys may be subjected to shock loads or vibrations in certain applications. These dynamic forces can affect the overall performance and integrity of the pulley and the power transmission system.
Design considerations, such as proper balancing, robust construction, and secure hub attachment, can help minimize the impact of shock and vibration on the pulleys.
5. UV Exposure:
If V pulleys are used in outdoor applications, they may be exposed to ultraviolet (UV) radiation from sunlight. Prolonged UV exposure can degrade certain materials, particularly plastics, causing them to become brittle or discolored.
If UV exposure is a concern, selecting materials with UV-resistant properties or applying protective coatings can help mitigate the effects of UV radiation.
While V pulleys are designed to withstand variations in environmental conditions, it is essential to consider the specific requirements of the application and select appropriate materials, coatings, and maintenance practices to ensure their long-term performance and durability.
Can V pulleys be part of fitness equipment like treadmills and stationary bikes?
Yes, V pulleys can be part of fitness equipment like treadmills and stationary bikes, playing a crucial role in their operation. Here’s a detailed explanation:
1. Belt Driven Systems:
Treadmills and stationary bikes often use belt-driven systems to transfer power from the motor or user’s pedaling motion to the moving components of the equipment. V pulleys are an integral part of these systems as they provide the necessary power transmission and control.
2. Motor Drive:
In motorized treadmills and stationary bikes, the V pulley is connected to the motor shaft, which drives the belt. The motor provides the rotational power needed to move the belt, allowing the user to walk, jog, or run on the treadmill or pedal the stationary bike. The size and design of the V pulley influence the speed and torque delivered to the belt and, consequently, the user’s movement.
3. Tension and Belt Alignment:
Proper tensioning and alignment of the belt are crucial for smooth and efficient power transfer in fitness equipment. V pulleys are often accompanied by tensioners and idler pulleys that help maintain the correct tension in the belt and ensure proper belt alignment. This ensures optimal performance and prevents belt slippage or premature wear.
4. Speed Control:
V pulleys allow for speed control in treadmills and stationary bikes. By using pulleys of different sizes, the speed ratio between the motor or user’s pedaling motion and the belt can be adjusted. This enables users to select their desired workout intensity by adjusting the speed at which the belt moves or the resistance level on stationary bikes.
5. Quiet Operation:
The design of V pulleys, combined with the flexibility and smooth engagement of V-belts, contributes to the quiet operation of fitness equipment. The pulley and belt system minimizes noise generation, providing a more enjoyable and peaceful workout experience for users.
6. Durability and Maintenance:
V pulleys used in fitness equipment are designed to withstand the demanding conditions of regular use. They are often made of durable materials such as steel or aluminum to ensure longevity. Regular maintenance, including periodic inspection, lubrication, and occasional belt replacement, is necessary to maintain the efficiency and reliability of the V pulley system in fitness equipment.
Overall, V pulleys are an essential component of fitness equipment like treadmills and stationary bikes, facilitating efficient power transmission, speed control, and user movement. Their design features, combined with properly tensioned belts, contribute to the overall performance, durability, and quiet operation of fitness equipment, supporting users in achieving their fitness goals.
What advantages do V pulleys offer for power transmission?
V pulleys, also known as V-belt pulleys or sheaves, offer several advantages for power transmission in various applications. Here’s an explanation of the advantages provided by V pulleys:
1. High Efficiency:
V pulleys provide high efficiency in power transmission. The V-shaped groove on the pulley and the corresponding trapezoidal cross-section of the V-belt create a wedging action that enhances the grip between the pulley and the belt. This improved grip minimizes slippage and ensures efficient power transfer, resulting in higher overall system efficiency.
2. Wide Speed Range:
V pulleys offer a wide speed range capability. By using different-sized pulleys, the speed ratio between the driving source and the driven component can be adjusted. This flexibility allows for the adaptation of power transmission systems to meet specific speed requirements, enabling optimal operation in various applications.
3. Shock and Vibration Dampening:
V pulleys have inherent shock and vibration dampening properties. The elasticity of the V-belt absorbs shocks and vibrations, reducing their transmission to the driven components. This feature helps to protect the machinery and equipment from excessive wear and damage, enhancing their reliability and lifespan.
4. Compact Design:
V pulleys offer a compact design compared to other types of pulleys. The V-belt drive system requires less space, making it suitable for applications where space constraints exist. The compact design also allows for efficient power transmission in tight or confined areas.
V pulleys are cost-effective compared to other power transmission systems. They are relatively simple in design and construction, making them more affordable to manufacture, install, and maintain. Additionally, V-belts have a longer service life compared to other types of belts, reducing the frequency and cost of replacement.
6. Easy Installation and Maintenance:
V pulleys are easy to install and maintain. The split design of some V pulleys allows for easy installation or replacement without the need to disassemble the entire system. Additionally, V-belts are generally easy to tension and adjust, simplifying maintenance tasks and reducing downtime.
V pulleys offer versatility in power transmission applications. They can accommodate a wide range of power requirements, making them suitable for various industries and systems. Additionally, V pulleys can transmit power over long distances without a significant loss in efficiency, allowing for flexibility in system design and layout.
These advantages make V pulleys a popular choice for power transmission in a wide range of applications. Their high efficiency, speed range capability, shock absorption, compact design, cost-effectiveness, ease of installation and maintenance, and versatility contribute to their widespread use in numerous industries and machinery.
editor by CX