China high quality Casting and Machining Belt Pulley for Italy Customer wholesaler

Product Description

Casting and Machining Belt Pulley for Italy customer

1. Material: Cast iron GG25, Ductile iron,grey iron
2. Process: machining - phosphating
3. Size:1C230,1C250,1C170,1B250,1B230

Specifications

 

Various Types of Pulley GG20/GG25/GG30/V-Belt Pluuey 
1.Produce as drawings 
2.on time delivery 
3.ISO,CCC Reliable qualit 
 

 

Various Types of  Pulley GG20/GG25/GG30/V-Belt pulley

Specifications:

Process: casting-machining-palstics spraying-packaging

Technical: sand casting

Material: China-HT200/HT250/HT300  Germery-GG20/GG25/GG30

Dimension: as customer's request

Casting level: CT10-CT11

Surface roughness: Ra25

Packaging: wooden cases or as customer's drawings

Surface treatment: shot blasting, plastic spraying, paint spraying

Equipment: cupola, electric furnace

Weight: 0.5kg-100kg

Surface colour: plastic spraying RAL2004/black paint/ antirust paint

Inspection:

  In-house and third partyUniversal

All the products are strictly inspected by the operators and skilled QC

  inspection tools: hardness tester, height ruler

 Production Procedure:

 

Drawings→Mould developing→Raw casting→Sandblasting→Rough machining or finish machining→Surface treatment→Inspection→Packing→Delivery strictly

 

We can produce the pulleys according to the drawings and samples provided by the customers with excellent quality and competitive price.

As an experienced casting manufacturer, we assure you the quality! Our products are through careful inspection, and our quality is high and reliable which have been achieved cutomers' satisfaction!

If you are interested in our products, please do not hesitate to contact us!

HangZhou Jiangdashengye Trade co.,ltd.

OEM SERVICES

Service

Drawings or samples processing/OEM/ODM service provided

Produce Process

Drawings→ mould making →raw casting → sandblasting →rough machining or finish machining →surface treatment →product checking→ packing →delivering

Casting Material

Cast Iron, Grey Iron, Ductile Iron,Carbon Steel, Stainless steel, Alloy steel, 
Aluminum, Aluminum alloy etc.

Standard

ISO, GB, ASTM, DIN, JIS

Equipment

melting furnace, centrifugal casting machines coated CHINAMFG machine CNC machines turning machines grinding machines milling machines drilling machine punching machines laser carving machine

Surface treatment

Heat treatment, Polishing, Sand blasting, Painting, Electro-plating, Chemical Plating,

 and other machining processing.

Inspection

Equipments

Spectrum analysis instrument, Metallurgical analysis, Tensile strength tester, Hardness tester, Roughness tester, deflection tester, Impact test machine, Projector, Altimeter, Scale Micrometer, pressure tester, etc.

Delivery

Sample sent to customer by air.

Large quantity products delivered to customer by sea from xingang,China

Payment terms

L/C at sight or 30% T/T as deposit and balanced 70% to pay before

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V belt pulley specifications:

1) European standard:    

a) V-belt pulleys for taper bushings: SPZ, SPA, SPB, SPC; up to 10 grooves   

b) Adjustable speed V-belt pulleys and variable speed pulleys   

c) Flat belt pulleys and conveyor belt pulleys

2) American standard:   

a) Sheaves for taper bushings: 3V, 5V, 8V    

b) Sheaves for QD bushings: 3V, 5V, 8V   

c) Sheaves for split taper bushings: 3V, 5V, 8V   

d) Sheaves for 3L, 4L or A, and 5L or B belts: AK, AKH, 2AK, 2AKH, BK, BKH,2BK, 2BKH, 3BK   

e) Adjustable sheaves: poly V-pulley, multi-pitch H, L, J, K and M

3) Bore: pilot bore, finished bore, taper bore, bore for QD bushing

4) Surface finish: paint, phosphating, zinc plated

5) Material: cast iron, ductile iron, nylon, aluminum

6) Made according to drawings and/or samples, OEM inquiries welcomed

Now we send photo of our production as follows:
 

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Size: 1c250
Size2: 1c230
Size3: 1b270
Size4: 1b250
Name: Casting and Machining Belt Pulley
Transport Package: Wooden Packing
Samples:
US$ 3.5/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

belt and pulley

Can you explain the role of belt and pulley systems in fitness equipment?

Belt and pulley systems play a crucial role in the functionality and operation of fitness equipment. These systems are commonly employed in various types of fitness machines to enable smooth movement, resistance control, and effective workouts. Let's explore the role of belt and pulley systems in fitness equipment:

  • Resistance Mechanism: Belt and pulley systems are often used as a primary means of providing resistance in fitness equipment. They allow users to adjust the level of resistance according to their fitness goals and capabilities. By employing different sizes of pulleys, tensioning mechanisms, or variable belt positions, the resistance can be modified to provide a challenging workout experience.
  • Smooth and Controlled Movement: Belt and pulley systems contribute to the smooth and controlled movement of fitness equipment. Whether it's a treadmill, elliptical trainer, rowing machine, or exercise bike, these systems ensure that the user experiences consistent and fluid motion. The belts provide a continuous and even transfer of power, enabling users to perform exercises with minimal jerking or jarring movements.
  • Speed and Incline Adjustments: In fitness equipment such as treadmills or incline trainers, belt and pulley systems are utilized to adjust the speed and incline of the exercise surface. By altering the pulley size and tensioning the belt, the user can increase or decrease the speed of the belt, simulating different running or walking intensities. Incline adjustments allow users to mimic uphill or downhill conditions, adding variety and challenge to their workouts.
  • Transfer of Power: Belt and pulley systems efficiently transfer power from the motor or user's input to various moving components. In fitness machines, these systems transmit power to rotating elements such as flywheels, rollers, or resistance mechanisms. This power transfer allows users to engage in cardiovascular exercises, resistance training, or other fitness activities, providing the desired workout intensity and targeting specific muscle groups.
  • Multiple Exercise Stations: Some fitness equipment, such as cable machines or multi-gyms, incorporate belt and pulley systems to create multiple exercise stations within a single machine. These systems enable users to perform a wide range of exercises by attaching handles, bars, or cables to different pulleys. By adjusting the position of the belt and utilizing various attachments, users can target different muscle groups and perform exercises for strength, endurance, or flexibility training.
  • Noise Reduction: Belt and pulley systems in fitness equipment can contribute to noise reduction during operation. Properly tensioned belts and well-maintained pulleys help minimize friction and vibrations, resulting in a quieter workout environment. This allows users to exercise comfortably without excessive noise distractions, making their fitness experience more enjoyable.

In summary, belt and pulley systems play a vital role in fitness equipment by providing resistance, enabling smooth and controlled movement, facilitating speed and incline adjustments, transferring power to various components, creating multiple exercise stations, and contributing to noise reduction. These systems enhance the functionality, versatility, and overall effectiveness of fitness machines, allowing users to engage in a wide range of exercises and achieve their fitness goals.

belt and pulley

How are belt and pulley systems integrated into automotive engines and accessories?

In automotive engines, belt and pulley systems play a vital role in driving various engine components and accessories. Here's a detailed explanation of how these systems are integrated:

Belt and Pulley Systems:

  • The belt and pulley system in automotive engines typically utilizes a serpentine belt, also known as a ribbed belt, due to its multiple ribs on the inner side.
  • This serpentine belt is responsible for transmitting power from the engine's crankshaft pulley to various engine components and accessories.
  • The belt's path is guided by a series of pulleys strategically positioned throughout the engine compartment.
  • The primary driving pulley, known as the crankshaft pulley or harmonic balancer, is connected to the engine's crankshaft. This pulley is responsible for driving the serpentine belt as the engine rotates.
  • Other pulleys, known as idler pulleys, are used to guide and tension the belt, ensuring proper engagement and preventing slippage.
  • The serpentine belt wraps around these pulleys, creating a continuous loop that drives various engine components and accessories.

Integration with Engine Components and Accessories:

  • Alternator: The serpentine belt drives the alternator, which generates electrical power to charge the vehicle's battery and supply electricity to the electrical systems.
  • Power Steering Pump: The power steering pump is driven by the serpentine belt and provides hydraulic assistance to the steering system, making it easier to turn the steering wheel.
  • Air Conditioning Compressor: The serpentine belt drives the air conditioning compressor, which pressurizes the refrigerant and circulates it through the air conditioning system, enabling the cooling of the vehicle's interior.
  • Water Pump: The water pump is responsible for circulating coolant throughout the engine, maintaining optimal operating temperatures. It is typically driven by the serpentine belt.
  • Supercharger or Turbocharger: In some high-performance or forced-induction engines, the serpentine belt may also drive a supercharger or a turbocharger, which increases the engine's air intake for enhanced power output.
  • Other Accessories: Depending on the vehicle's configuration, the serpentine belt may drive additional accessories such as the air pump, smog pump, or other engine-driven components.

The integration of belt and pulley systems into automotive engines and accessories provides a reliable and efficient means of driving critical components and accessories. The serpentine belt's design and the pulley arrangement ensure proper power transmission, allowing the engine to operate smoothly and efficiently while driving various systems. Regular inspection, maintenance, and replacement of the serpentine belt and related pulleys are essential to ensure optimal performance, reliability, and safety in automotive engines and their accessories.

belt and pulley

How do different types of belts and pulleys impact system performance?

The performance of a system using belts and pulleys can be influenced by the choice of different types of belts and pulleys. Here's a detailed explanation of how different types of belts and pulleys can impact system performance:

Belts:

  • Timing Belts: Timing belts have teeth on the inner side, which mesh with corresponding grooves on the pulleys. They are commonly used in applications requiring precise synchronization of rotational motion, such as in engines or machinery with strict timing requirements. Timing belts offer excellent power transmission accuracy and are less prone to slipping, ensuring precise motion control and minimizing timing errors.
  • V-Belts: V-belts are trapezoidal in shape and typically used in applications where high torque transmission is required. They rely on the wedging action between the belt and the pulley to transmit power. V-belts are known for their high grip and efficient power transfer capabilities. They are commonly used in automotive engines, industrial machinery, and HVAC systems.
  • Flat Belts: Flat belts are flat in shape and provide a larger contact area with the pulleys. They are versatile and can be used in a wide range of applications. Flat belts are commonly used in conveyor systems, agricultural machinery, and industrial equipment. They offer flexibility, ease of installation, and high power transmission efficiency.
  • Ribbed Belts: Ribbed belts, also known as serpentine belts, have a series of ribs on the inner side. These ribs engage with corresponding grooves on the pulleys, allowing for efficient power transmission. Ribbed belts are commonly used in automotive engines, where they drive multiple accessories such as alternators, power steering pumps, and air conditioning compressors. They offer high power transmission capacity and reduced slippage.
  • Round Belts: Round belts are circular in cross-section and typically made of elastic materials. They are commonly used in applications requiring flexibility and high-speed power transmission, such as in office machinery, printers, and small appliances. Round belts offer ease of installation, quiet operation, and good shock absorption capabilities.

Pulleys:

  • Fixed Pulleys: Fixed pulleys have a fixed position on the shaft and do not change the direction or speed of the input motion. They are commonly used to redirect the path of the belt or to provide tension in the system.
  • Variable Speed Pulleys: Variable speed pulleys, also known as adjustable pulleys or variable pitch pulleys, allow for easy adjustment of the pulley diameter. By changing the pulley diameter, the speed ratio between the driving and driven components can be varied, providing flexibility in system performance. Variable speed pulleys are commonly used in applications where adjustable speed control is required, such as in machinery with varying load conditions.
  • Idler Pulleys: Idler pulleys are used to change the direction of the belt or to provide additional support and tension. They do not transmit power themselves but play a crucial role in maintaining proper belt tension and alignment, improving system performance and reducing belt wear.
  • Step Pulleys: Step pulleys have multiple grooves or steps of different diameters. By changing the belt's position on different steps, the effective pulley diameter and speed ratio can be adjusted. Step pulleys are commonly used in applications where discrete speed changes are required, such as in drill presses or milling machines.

The choice of different types of belts and pulleys can have a significant impact on system performance. Factors such as power transmission accuracy, torque capacity, grip, efficiency, speed control, and system flexibility can be influenced by the selection of appropriate belt and pulley types. Understanding the specific requirements of the application and considering factors such as load conditions, speed variation needs, and environmental conditions can help determine the most suitable belt and pulley combination for optimal system performance.

China high quality Casting and Machining Belt Pulley for Italy Customer   wholesaler China high quality Casting and Machining Belt Pulley for Italy Customer   wholesaler
editor by CX

2024-04-12

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