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China wholesaler SPA160-02/Cast Iron V Belt Pulley Spz SPA CZPT Spc Taper Bush Pulley pulley bearing

Product Description

Product Description

·  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

Detailed Photos

 

Product Parameters

 

Certifications

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.

Company Profile

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.

FAQ

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.

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Certification: ISO
Pulley Sizes: Type A
Manufacturing Process: Casting
Samples:
US$ 50/Piece
1 Piece(Min.Order)

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Order Sample

Customization:
Available

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Customized Request

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

pulley

How does the design of a V pulley affect its performance?

The design of a V pulley plays a crucial role in determining its performance characteristics. Here’s an explanation of how different design aspects of a V pulley can affect its performance:

1. Groove Profile:

The groove profile of a V pulley is designed to match the shape of the V-belt used in the power transmission system. The angle and depth of the groove directly influence the grip between the pulley and the belt. An appropriate groove profile ensures a secure and efficient power transmission, minimizing belt slippage, and maximizing the transfer of torque.

2. Diameter:

The diameter of a V pulley affects both its speed ratio and torque transmission capacity. A larger pulley diameter results in higher belt speed and lower torque transmission, while a smaller diameter pulley provides lower speed and higher torque. The selection of the pulley diameter depends on the desired speed and torque requirements of the application.

3. Material:

The material used for constructing the V pulley impacts its durability, strength, and resistance to wear and corrosion. Common materials include cast iron, steel, aluminum, and plastic. The choice of material depends on factors such as the application environment, load capacity, and operating conditions. A robust and appropriate material selection ensures the pulley can withstand the demands of the application and maintain its performance over time.

4. Balance and Runout:

A well-balanced V pulley is essential to minimize vibration and ensure smooth operation. Imbalances can lead to increased wear on the pulley, belt, and bearings, reducing the overall efficiency and lifespan of the system. Similarly, excessive runout (eccentricity) in the pulley’s rotational movement can cause belt misalignment and increased friction. Proper design and manufacturing techniques are necessary to achieve optimal balance and runout in V pulleys.

5. Taper and Flange:

In some V pulley designs, a taper or flange is incorporated to improve belt tracking and prevent belt wandering or jumping off the pulley. The taper or flange helps guide the belt and maintain proper alignment, enhancing the overall performance and reliability of the power transmission system.

6. Hub Design:

The hub design of a V pulley determines its attachment method to the shaft. It can feature keyways, set screws, or other mechanisms to securely fasten the pulley in place. The hub design should ensure a tight and reliable connection to prevent pulley slippage and maintain accurate power transmission.

7. Surface Finish:

The surface finish of a V pulley can impact its friction characteristics. A smooth and properly finished surface reduces friction between the pulley and the belt, promoting efficient power transmission and minimizing heat generation. Additionally, surface treatments such as coatings or platings can improve the pulley’s resistance to corrosion and wear.

Each of these design factors contributes to the overall performance of a V pulley in terms of power transmission efficiency, belt grip, durability, and reliability. Manufacturers carefully consider these design aspects to ensure optimal performance and compatibility with specific applications and operating conditions.

pulley

What is the role of V pulleys in HVAC systems and air conditioning units?

V pulleys play a significant role in HVAC (Heating, Ventilation, and Air Conditioning) systems and air conditioning units by facilitating efficient power transmission and driving various components. Here’s a detailed explanation of the role of V pulleys in HVAC systems and air conditioning units:

1. Blower Motor Drive:

In HVAC systems and air conditioning units, V pulleys are commonly used to drive the blower motor. The blower motor is responsible for circulating air through the system, facilitating the movement of conditioned air into the desired space. The V pulley provides the necessary power transmission to drive the blower motor efficiently.

2. Fan Drive:

V pulleys are also employed in HVAC systems to drive fans that assist in airflow and heat exchange. These fans include condenser fans, evaporator fans, and circulation fans. The V pulley connects the motor to the fan, enabling the fan to operate at the desired speed to enhance heat transfer and air circulation.

3. Belt-Driven Compressors:

In some HVAC systems and air conditioning units, V pulleys are used in conjunction with belt-driven compressors. The compressor is responsible for pressurizing and circulating the refrigerant throughout the system, facilitating the cooling process. The V pulley provides power transmission from the motor to the compressor, allowing for efficient operation of the cooling system.

4. Speed Control:

V pulleys allow for speed control in HVAC systems and air conditioning units. By using pulleys of different sizes, the speed ratio between the motor and the driven components can be adjusted. This flexibility in speed control enables precise airflow regulation and cooling capacity adjustment based on the specific requirements of the space being conditioned.

5. Belt Tensioning and Alignment:

Proper tensioning and alignment of the belts are essential for efficient power transmission and to prevent belt slippage or premature wear. V pulleys in HVAC systems are often accompanied by tensioners and idler pulleys that help maintain the correct tension in the belts and ensure proper belt alignment. Proper tensioning and alignment contribute to the overall efficiency and longevity of the system.

6. Noise Reduction:

V pulleys, along with properly tensioned belts, contribute to the smooth and quiet operation of HVAC systems and air conditioning units. The design of V pulleys, combined with the flexibility and smooth engagement of V-belts, minimizes noise generation, providing a quieter environment for occupants.

7. Durability and Maintenance:

V pulleys used in HVAC systems and air conditioning units are typically made of durable materials such as steel or aluminum. These materials can withstand the demanding conditions of HVAC operation, including high temperatures and continuous use. Regular maintenance, including inspection, lubrication, and occasional belt replacement, ensures the continued efficiency and reliability of the V pulley system in HVAC applications.

Overall, V pulleys are integral components in HVAC systems and air conditioning units, enabling efficient power transmission, precise speed control, and reliable operation of blower motors, fans, compressors, and other components. Their design features, combined with properly tensioned belts, contribute to the overall performance, airflow, and cooling capacity of HVAC systems, ensuring optimal comfort and energy efficiency in various indoor environments.

pulley

What are the primary components and design features of a V pulley?

A V pulley, also known as a V-belt pulley or sheave, consists of several primary components and design features that enable its functionality. Here’s an explanation of the primary components and design features of a V pulley:

1. Body:

The body of a V pulley is the main structural component. It is typically made of metal, such as cast iron or steel, to provide strength and durability. The body is designed to support the V-belt and transmit power from the driving source to the driven component. It may have a solid construction or be split into two halves for easy installation or replacement.

2. Groove:

The groove is a key design feature of a V pulley. It is a V-shaped channel or groove that runs along the outer circumference of the pulley. The groove is specifically designed to accommodate the V-belt with a corresponding trapezoidal cross-section. The V shape of the groove enhances the grip between the pulley and the belt, ensuring efficient power transmission and reducing the risk of slippage.

3. Diameter:

The diameter of a V pulley refers to the distance across its outer circumference. It plays a crucial role in determining the speed ratio and torque transmission of the power transmission system. By changing the diameter of the pulley, different speed ratios can be achieved between the driving source and the driven component. Larger pulley diameters generally result in higher belt speeds and lower torque, while smaller diameters lead to slower belt speeds and higher torque.

4. Number of Grooves:

V pulleys can have a single groove or multiple grooves, depending on the specific application. The number of grooves corresponds to the number of V-belts used in the power transmission system. Multiple grooves allow for the simultaneous power transmission to multiple driven components, such as in systems with multiple accessories or pulleys in automotive engines.

5. Tapered or Straight Design:

V pulleys can have a tapered or straight design, depending on the requirements of the application. Tapered pulleys are wider at one end and narrower at the other, allowing for easier belt installation and improved belt tracking. Straight pulleys have a consistent width along their entire circumference and are commonly used in applications where belt tracking is not a significant concern.

6. Surface Finish:

The surface finish of a V pulley is important for optimizing the performance and lifespan of the V-belt. The pulley’s surface should be smooth and free from any roughness or irregularities that could cause excessive belt wear or damage. Proper surface finish ensures proper belt contact, reduces friction, and enhances the overall efficiency of the power transmission system.

7. Mounting Mechanism:

V pulleys are mounted on shafts or bearings using various mounting mechanisms, such as set screws, bolts, or keyways. The mounting mechanism ensures secure and reliable attachment of the pulley to the rotating shaft, allowing for the transmission of rotational motion and torque.

By considering these primary components and design features, engineers can select and design V pulleys that are suitable for specific applications, ensuring efficient power transmission and reliable operation in mechanical systems.

China wholesaler SPA160-02/Cast Iron V Belt Pulley Spz SPA CZPT Spc Taper Bush Pulley   pulley bearing	China wholesaler SPA160-02/Cast Iron V Belt Pulley Spz SPA CZPT Spc Taper Bush Pulley   pulley bearing
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