Tag Archives: timing pulley 5m

China Standard CZPT Aluminum /Steel Timing Belt Pulley Mxl XL L H Xh Xxh T2.5 T5 T10 At5 At10 S2m S3m S5m S8m Gt2 Gt3 Gt5 3m 5m 8m Tooth Timing Belt Pulley Timing Pulley near me supplier

Product Description

 

 

 

 

 

 

Advantage:

1. Factory directly supply ,  we can continue to provide a stable supply                                        
2. Many years manufacture experience , top quality guaranteed by skilled workers, managing system and status of  facilities.
3. Competitive and reasonable price 
4. OEM service, we can do as your drawings or samples 
5. Quality Guarantee, 100% inspect before delivery
6. Good after-sale service, Our wokers are all professional and all can speak English. 
7. Timely delivery,  We have many long cooperation supplier. supply ONE-STOP service
8. High-tech CNC Machines
9. Independent Engineering Department

10.Kinds of surface treatment—Zinc Plating, Powder Coating, Anodizing, Chrome Plate, RoHs .etc .

 

 

 

 

 

 

 

FAQ

1.Q:Are you a manufacturer or a trading company?
A:We are a professional manufacturer with 20 years of industry experience
 

2.Q:What about the lead time?
A: 2–3 days for sample 15–30 days for mass production. If urgent,we have green channel.
 

3.Q:Do you have any MOQ limit for conveyor belt order?
A: Low MOQ, 1pc for sample checking is available
 

4.Q: What are the advantages compared with other suppliers?
A: We have 6 production lines, a production base of 10300 square meters, an annual output of 900 million square meters, 8900 enterprises believe us, and we are highly praised
 

5.Q: Do you have pre-sale service?
A: Of course, we have 2 engineers at the same time to serve you, can help you choose the most suitable conveyor belt for you, you can also visit our production base, we welcome you very much

Product  Name Aluminium Timing Pulley MXL XL L H XH XXH T2.5 T5 T10 AT5 AT10 S2M S3M S5M S8M GT2 GT3 GT5 3M 5M 8M Tooth timing Belt Pulley
Teeth profile  Trapezoidal toothed  MXL, XXL, XL, L, H, XH, XXH
 T-toothed  T2.5, T5, T10, T20
 Arc toothed  HTD3M, HTD5M, HTD8M, HTD14M, HTD20M, Gt2,  Gt3, Gt5
 S-toothed  S2M, S3M, S4.5M, S5M, S8M, S14M
 Parabolic-toothed  P2M, P3M, P5M, P8M, P14M
 Y-toothed  G2M, G3M, G5M, Y8M
 Teeth Quantity  10-150 teeth or customized
 Inner Bore  2-200mm H7 precision or customized
Belt width  4mm, 6mm, 9mm, 10mm, 12mm, 15mm, 20mm, 25mm, 30mm, 40mm, 50mm, 1/4”, 5/16”, 3/8”, 1/2”, 3/4”, 1”, 1.5”, 2”or customized
Material carbon steel C45, Aluminum 6061, 6082
Surface  treatment  Anodize,Black Oxide,Phosphate, Galvanization, Nitriding, Dichromate
Product  Name Aluminium Timing Pulley MXL XL L H XH XXH T2.5 T5 T10 AT5 AT10 S2M S3M S5M S8M GT2 GT3 GT5 3M 5M 8M Tooth timing Belt Pulley
Teeth profile  Trapezoidal toothed  MXL, XXL, XL, L, H, XH, XXH
 T-toothed  T2.5, T5, T10, T20
 Arc toothed  HTD3M, HTD5M, HTD8M, HTD14M, HTD20M, Gt2,  Gt3, Gt5
 S-toothed  S2M, S3M, S4.5M, S5M, S8M, S14M
 Parabolic-toothed  P2M, P3M, P5M, P8M, P14M
 Y-toothed  G2M, G3M, G5M, Y8M
 Teeth Quantity  10-150 teeth or customized
 Inner Bore  2-200mm H7 precision or customized
Belt width  4mm, 6mm, 9mm, 10mm, 12mm, 15mm, 20mm, 25mm, 30mm, 40mm, 50mm, 1/4”, 5/16”, 3/8”, 1/2”, 3/4”, 1”, 1.5”, 2”or customized
Material carbon steel C45, Aluminum 6061, 6082
Surface  treatment  Anodize,Black Oxide,Phosphate, Galvanization, Nitriding, Dichromate

A Buyer’s Guide to Air Compressor Types

There are many types of Air Compressors, and it’s important to understand what each type has to offer. In this article, we’ll discuss single stage air compressors, low-noise compressors, and models with two pistons. But, before you buy an Air Compressor, be sure to read our buyer’s guide to the various types. This way, you’ll have all of the information you need to make the right decision for your business.
air-compressor

Single-stage air compressors

A single-stage air compressor is an excellent choice for most general-purpose purposes. They provide enough power to operate pneumatic tools, and they produce less heat. Single-stage air compressors, however, are not suitable for heavy-duty industrial uses. However, they can be used in various applications, including auto shops, gas stations, and various manufacturing facilities. They are also suitable for borewells and other high-pressure places.
These air compressors are a great choice for home use and are suitable for small-scale businesses, contractors, and small shops. These compressors have continuous duty cycles, cast iron compressor pumps, and a minimum 5,000-hour pump life. They also feature advanced features, including ODP motors, Auto Start & Controls, Receiver tanks, and power cords. They have low maintenance and can save you a great deal of money.
Single-stage air compressors are generally less expensive and lighter than their two-stage counterparts. Single-stage air compressors are also more portable, which is a plus for small projects. While two-stage compressors offer higher CFM, they are more powerful and bulky, making them unsuitable for small or home use. So it is essential to determine what you will use the air compressor for and decide on a model based on your needs.
A single-stage air compressor is made of a piston and a tank. The piston moves rapidly inside the cylinder and exerts pressure on the cylinder. This means that the piston can’t move any faster than the air pressure outside the cylinder. The piston is designed to operate in the same way for each stage. This is a great choice for home shops and one-man automotive shops, as it allows you to control the pressure without sacrificing the pump’s life.
Single-stage air compressors are often cheaper than two-stage versions, but they are not the best choice for every application. If you are only using your air compressor occasionally, you’ll find a one-stage model to be much more reliable than a two-stage model. The main difference between the two types of compressors is in the amount of air that each stage compresses. A two-stage air compressor will have more air storage capacity, but it will still produce more pressure.

Rotary vane compressors

Rotary vane compressors use a centrifugal pump to compress air. The rotor is set eccentrically in the housing, which almost touches the vane. As the rotor turns, the air that enters the pump is trapped between the vanes. This compressed air undergoes compression as the rotor rotates. Vanes are small pieces of carbon fiber or graphite composite. Vanes may be made of different materials depending on the application.
While rotary vane pumps are not commonly used to produce compressed air, they are widely used in automotive and hydraulic applications. Chances are, you have used a rotary vane pump at some point in your life. These pumps are also common in the vacuum and compressed air industries. As a result, many people don’t realize that they’re still around. They feature slots that allow the vanes to slide in and out of the rotor.
A rotary vane compressor has a drum and rotor inside. The rotor is eccentrically positioned and has slots and grooves on its surface. Its inlet and outlet ports are situated off-center, allowing the vanes to be pushed out by centrifugal force. Because the rotor rotates so quickly, air is trapped between the vanes. This air then becomes pressurized by the rotating rotor.
Rotating vane compressors can be easily serviced and repaired. A simple replacement of carbon vanes requires just 15 minutes and common tools. The carbon vanes typically last nine to eighteen months, depending on system operating pressure. Before purchasing a rotary vane compressor, make sure to check whether it has been properly performance-tested and has a warranty. Generally, warranties cover the rotor/stator chambers but do not cover the vanes or air filters. You should also check if the unit is covered by a lightning or water damage warranty.
Rotary vane compressors are an integral part of manufacturing industries. Many pharmaceutical manufacturing facilities depend on rotary vane compressors to control their equipment. Other industries that use rotary vane compressors include the plastics, woodworking, natural gas, and medical & dental fields. Their benefits are numerous and far outweigh any disadvantages of rotary screw compressors. For example, a rotary vane compressor can double the life of a conventional compressor.
air-compressor

Rotary vane compressors with low-noise models

If you are looking for a rotary vane air compressor, you have come to the right place. CZPT’s LV Series rotary vane compressors offer low-noise models, compact size, and robust integration. In addition to their low-noise features, they feature large filter systems to deliver high-quality compressed air. The LV Series models also feature CZPT’s reputation for reliability and quality.
This type of compressor uses centrifugal force to operate and is limited in its top and minimum operating speeds. They are only a third as powerful as screw compressors, and their top speed limits are much lower. Furthermore, the vanes wear out easily at high speeds because there is not enough centrifugal force to seal them against the cylinder’s edges. Even at half their full capacity, they consume as much as 80% of their total energy rating.
Because piston compressors produce a lot of noise, factory owners and shop owners have begun to install noise-dampening cabinets and other solutions. But, rotary vane compressors produce far less noise than a traditional vacuum, and the maintenance costs are also low. Rotary vane compressors are also extremely helpful in several industries. They are used in the automotive and auto finishing industries, as well as in dairy industries and milking machines.
If you have a deep pond, a rotary vane air compressor kit can pump up to 20 feet of water. This is more than enough airflow for two to five diffusers. A 1/4 HP rotary vane kit pumps around 4.2 CFM. It also helps to increase circulation and oxygen levels in the pond. Finally, a 1/4 HP kit offers the necessary power to clean up the bottom of a pond.
The rotary vane and rotary screw are the most popular air compressors today. While they are similar in many ways, they are more versatile and durable than their counterparts. They use fewer angular contact ball bearings and require less frequent maintenance than piston air compressors. Compared to piston air compressors, rotary vane and rotary screw compressors are quieter and are less expensive.
air-compressor

Rotary vane compressors with two pistons

The rotary vane and rotary screw compressors are similar in application, but both have different advantages and disadvantages. This article will compare the benefits of each and highlight the differences between them. While both are commonly used in industrial applications, rotary vane compressors are preferred by many industries. These compressors also have a wide range of uses, ranging from automotive air tool operation to milking machines. These compressors also have the advantage of being quieter than piston-powered ones.
The current common rail position may not be suitable for pressure swirl injectors, but new positions have been tested and show improvements in specific energy values. Moreover, the current position is not required for external oil pumps. However, mass induction and expulsion have to be performed with utmost care. This article focuses on the design and efficiency of rotary vane compressors. You can find more information about this new design in the references mentioned below.
The advantages of this type of compressor are its low cost, compact size, and easy maintenance. Hence, they are preferred in low capacity applications. Moreover, they feature integrated vanes. The rotating vanes close the air gap and compress air towards the outlet. Compared to piston-powered compressors, these units are cheaper and more reliable. Therefore, you should choose one with the lowest price tag. You can also opt for rotary vane compressors that are oil-free.
Sliding vane compressors are another popular variant. They have a single cylinder connected to the compressor and are capable of operating at low speeds. This design also reduces the amount of friction and maintains volumetric efficiency. However, the sliding vane compressors suffer from high frictional losses. If you are looking for a more efficient rotary compressor, this is the best option. While sliding vane compressors have been in the spotlight for over a century, they are still quite young.
These compressors are easy to install and maintain. They are also quieter than piston compressors. They are also cheaper than piston-driven compressors. The energy efficiency and low price make them the perfect choice for any commercial or industrial application. If you’re looking for a small, compact compressor, the rotary vane has been proven to be the best choice for your needs. You should know that it has a long service life.

China supplier CZPT Aluminum /Steel Timing Belt Pulley Mxl XL L H Xh Xxh T2.5 T5 T10 At5 At10 S2m S3m S5m S8m Gt2 Gt3 Gt5 3m 5m 8m Tooth Timing Belt Pulley Timing Pulley with Free Design Custom

Product Description

 

 

 

 

 

 

Benefit:

1. Factory directly offer ,  we can keep on to give a stable supply                                        
2. Numerous a long time manufacture encounter , best good quality certain by experienced staff, taking care of method and position of  facilities.
3. Competitive and sensible price 
4. OEM support, we can do as your drawings or samples 
five. Quality Guarantee, 100% inspect just before delivery
6. Very good soon after-sale provider, Our wokers are all professional and all can speak English. 
seven. Well timed shipping and delivery,  We have several extended cooperation provider. supply A single-End support
eight. Substantial-tech CNC Machines
9. Unbiased Engineering Office

ten.Types of floor remedy—Zinc Plating, Powder Coating, Anodizing, Chrome Plate, RoHs .etc .

 

 

 

 

 

 

 

FAQ

one.Q:Are you a manufacturer or a investing business?
A:We are a professional company with 20 years of business knowledge
 

2.Q:What about the lead time?
A: 2–3 times for sample fifteen–thirty times for mass creation. If urgent,we have eco-friendly channel.
 

3.Q:Do you have any MOQ restrict for conveyor belt purchase?
A: Minimal MOQ, 1pc for sample checking is obtainable
 

four.Q: What are the rewards compared with other suppliers?
A: We have 6 production traces, a creation foundation of 10300 square meters, an once-a-year output of 900 million square meters, 8900 enterprises think us, and we are very praised
 

5.Q: Do you have pre-sale provider?
A: Of program, we have 2 engineers at the exact same time to provide you, can support you choose the most suited conveyor belt for you, you can also go to our manufacturing base, we welcome you really a lot

Product  Name Aluminium Timing Pulley MXL XL L H XH XXH T2.5 T5 T10 AT5 AT10 S2M S3M S5M S8M GT2 GT3 GT5 3M 5M 8M Tooth timing Belt Pulley
Teeth profile  Trapezoidal toothed  MXL, XXL, XL, L, H, XH, XXH
 T-toothed  T2.5, T5, T10, T20
 Arc toothed  HTD3M, HTD5M, HTD8M, HTD14M, HTD20M, Gt2,  Gt3, Gt5
 S-toothed  S2M, S3M, S4.5M, S5M, S8M, S14M
 Parabolic-toothed  P2M, P3M, P5M, P8M, P14M
 Y-toothed  G2M, G3M, G5M, Y8M
 Teeth Quantity  10-150 teeth or customized
 Inner Bore  2-200mm H7 precision or customized
Belt width  4mm, 6mm, 9mm, 10mm, 12mm, 15mm, 20mm, 25mm, 30mm, 40mm, 50mm, 1/4”, 5/16”, 3/8”, 1/2”, 3/4”, 1”, 1.5”, 2”or customized
Material carbon steel C45, Aluminum 6061, 6082
Surface  treatment  Anodize,Black Oxide,Phosphate, Galvanization, Nitriding, Dichromate
Product  Name Aluminium Timing Pulley MXL XL L H XH XXH T2.5 T5 T10 AT5 AT10 S2M S3M S5M S8M GT2 GT3 GT5 3M 5M 8M Tooth timing Belt Pulley
Teeth profile  Trapezoidal toothed  MXL, XXL, XL, L, H, XH, XXH
 T-toothed  T2.5, T5, T10, T20
 Arc toothed  HTD3M, HTD5M, HTD8M, HTD14M, HTD20M, Gt2,  Gt3, Gt5
 S-toothed  S2M, S3M, S4.5M, S5M, S8M, S14M
 Parabolic-toothed  P2M, P3M, P5M, P8M, P14M
 Y-toothed  G2M, G3M, G5M, Y8M
 Teeth Quantity  10-150 teeth or customized
 Inner Bore  2-200mm H7 precision or customized
Belt width  4mm, 6mm, 9mm, 10mm, 12mm, 15mm, 20mm, 25mm, 30mm, 40mm, 50mm, 1/4”, 5/16”, 3/8”, 1/2”, 3/4”, 1”, 1.5”, 2”or customized
Material carbon steel C45, Aluminum 6061, 6082
Surface  treatment  Anodize,Black Oxide,Phosphate, Galvanization, Nitriding, Dichromate

How to Choose the Right Air Compressor

An air compressor uses pressurized air to power a variety of tools. They are most commonly used to power nailers and impact wrenches. Other popular uses for air compressors include paint sprayers and impact wrenches. While all air compressors have the same basic construction, their specialty differs. Ultimately, their differences come down to the amount of air they can push. Read on for information on each type of air compressor. These tools are great for many different purposes, and choosing the right air compressor depends on your specific needs.
air-compressor

Electric motor

While purchasing an electric motor for air compressor, compatibility is a key factor. Not all motors work with the same type of air compressor, so it’s important to check the manufacturer’s instructions before purchasing. By doing this, you can avoid wasting money on an incompatible motor. Another important consideration is speed. A motor’s speed is its rate of rotation, measured in revolutions per minute. It is critical that you purchase a motor with sufficient speed to meet the needs of your air compressor.
Typically, an electric motor for air compressor is 1.5 hp. It is ideal for use with medical equipment and metal-cutting machines. It also performs well under continuous operation and offers a high efficiency and energy-saving performance. Moreover, it features an attractive price, making it a good choice for a wide range of applications. If you are looking for a motor for an air compressor, look no further than a ZYS series.
A motor’s protection class indicates how the motor will operate. Protection classes are specified by the IEC 60034-5. These are stated with two digits and represent the protection against solid objects and water. For example, an IP23 rating means that the motor will be protected from solid objects, while IP54 means that it will protect from dust and water sprayed from all directions. It is vital to choose a motor with the correct protection class for your air compressor.
When choosing an electric motor, you should consider whether it’s compatible with the brand of air compressor. Some may be compatible, while others may require advanced electronics skills to repair. However, most air compressors are covered by warranty, so it’s important to check with the manufacturer if the warranty is still in effect before you spend a dime on a replacement. The motor should be replaced if it has failed to perform as designed.
air-compressor

Oil bath

Air compressors require proper lubrication to function efficiently. The piston must draw air with minimal friction. Depending on their design, air compressors can either be oil-lubricated or oil-free. The former uses oil to reduce piston friction, while the latter splashes it on the cylinder bearings and walls. Such air compressors are commonly known as oil-flooded air compressors. In order to keep their oil baths clean, they are recommended for use in locations with high dust levels.

Start/stop control

An air compressor can be controlled by a start/stop control. This type of control sends a signal to the main motor that activates the compressor when the demand for air falls below a preset limit. This control strategy is effective for smaller air compressors and can be useful for reducing energy costs. Start/stop control is most effective in applications where air pressure does not change frequently and where the compressor is not required to run continuously.
To troubleshoot this problem, you need to check the power supply of your compressor. To check the supply side, use a voltage monitor to determine if power is flowing to the compressor. Ensure that the power supply to the compressor is steady and stable at all times. If it fluctuates, the compressor may not start or stop as expected. If you cannot find the problem with the air compressor power supply, it may be time to replace it.
In addition to the start/stop control, you may want to purchase additional air receivers for your air compressor. These can increase the capacity of air stored and reduce the number of times it starts and stops. Another way to decrease the number of starts per hour is to add more air receivers. Then, you can adjust the control to match your requirements. You can also install a pressure gauge that monitors the compressor’s performance.
Start/stop control for air compressors can be complex, but the basic components are relatively easy to understand. One way to test them is to turn the compressor on or off. It is usually located on the exterior of the motor. If you’re unsure of the location of these components, check the capacitors and make sure that the air compressor is not running while you’re not using it. If it does, try to remove the capacitor.
Variable displacement control is another way to adjust the amount of air flowing into the compressor. By controlling the amount of air, the control can delay the use of additional compressors until more required air is available. In addition to this, the device can also monitor the energy used in the compressor. This control method can result in substantial energy savings. You can even save on the amount of electricity by using variable displacement control. It is essential for efficient compressed air systems.
air-compressor

Variable speed drive

A VFD, or variable frequency drive, is a type of electric motor that adjusts its speed to match the demand for air. It is an efficient way to reduce energy costs and improve system reliability. In fact, studies have shown that a 20% reduction in motor speed can save up to 50% of energy. In addition, a VFD can monitor additional variables such as compressor oil pressure and motor temperature. By eliminating manual checks, a VFD will improve the performance of the application and reduce operating costs.
In addition to reducing energy costs, variable-speed drives also increase productivity. A variable-speed air compressor reduces the risk of system leaks by 30 percent. It also reduces the risk of system leaks by reducing pressure in the system. Because of these advantages, many governments are promoting this technology in their industries. Many even offer incentives to help companies upgrade to variable-speed drives. Therefore, the variable-speed drive can benefit many air compressor installations.
One major benefit of a variable-speed drive is its ability to optimize energy use. Variable frequency drives are able to ramp up and down to match the demand for air. The goal is to optimize the pressure and flow in the system so that the best “dead band” occurs between forty percent and eighty percent of full load. A variable-speed compressor will also increase energy efficiency because of its programmability.
A variable-speed air compressor can also be used to control the amount of air that is compressed by the system. This feature adjusts the frequency of power supplied to the motor based on the demand. If the demand for air is low, the frequency of the motor will reduce to save energy. On the other hand, if there is an excess demand for air, the variable-speed compressor will increase its speed. In addition, this type of air compressor is more efficient than its fixed-speed counterpart.
A VFD has many benefits for compressed air systems. First, it helps stabilize the pressure in the pipe network, thereby reducing the power losses due to upstream pressure. It also helps reduce the power consumption caused by fluctuations in upward pressure. Its benefits are also far-reaching. And as long as the air pressure and air supply is properly sized, a VFD will help optimize the efficiency of compressed air systems.

Htd best made in China – replacement parts – in Verona Italy Pitch Timing Synchronous Belt Pulley 5m with top quality

Htd  best  made in China - replacement parts -  in Verona Italy  Pitch Timing Synchronous Belt Pulley 5m with top quality

We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears factory in China with 5 distinct branches. For a lot more specifics: Cell/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828

Item Description

Product Type

XL, H, HTD8M,5M,3M, AT3, AT5 normal equipment, or in accordance client drawing to make.

Substance:

Carbon Steel, Brass, Aluminium, Stainless steel, Plastic, POM, Delrin, Titanium Alloy etc.

Process method

CNC Turning, hobbing gear

Surface finish:

Chrome plating, Anodization, Powder coating, blackening, Sand blasting, Brushing & ploshing,Electrophoresis etc.

OEM & ODM Service

Obtainable

Design Software

Pro/E, Auto CAD, Solid Works 

Trade Terms:

FOB,,CIF,EXW

Payment Terms:

T/T, L/C, 

Packing:

 Foam, Carton, Standard Wooden boxes

Ability

8,000~1,5000 pcs per month

Delivery 

twenty-30 days after receiving PO

Purposes

Automotive Parts,hydraulics, compressors,Industrial equipments, transmission parts, etc.

Our services:

CNC Machining, Milling, Stamping, Sheet metal fabricating, and Die-Casting

Solution show

  

Manufacture method

FAQ
Q1. What is your terms of packing?
A: Typically, we pack our items in single coloration box. If you have unique reque EPT about packing, p EPT negotiate with us in advance, we can pack the goods as your request.

Q2. What is your phrases of payment?
A: T/T thirty% as deposit, and 70% ahead of shipping and delivery. We’ll display you the photos of the goods and packages 
prior to you shell out the harmony. EPT payments conditions, p EPT negotiate with us in progress, we can examine.

Q3. What is your conditions of shipping?
A: EXW, FOB, CFR, CIF.

This fall. How about your supply time?
A: Generally, it will consider twenty five to thirty times right after acquiring your progress payment. The certain delivery time depends 
on the objects and the quantity of your buy.

Q5. Can you produce according to the samples?
A: Of course, we can generate by your samples or technological drawings. We can create the molds and fixtures.

Q6. What is your sample coverage?
A: We can provide the sample if we have all set components in stock, but the clients have to shell out the sample co EPT and 
the courier cost.We welcome sample purchase.

Q7. Do you te EPT all your items just before shipping?
A: Yes, we have one hundred% te EPT before shipping

Q8: How do you make our enterprise prolonged-term and good relationship?
1. We maintain great good quality and aggressive value to make certain our buyers gain
2. We regard every single buyer as our buddy and we sincerely do company and make close friends with them, 
no subject exactly where they occur from.

We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears manufacturing unit in China with 5 distinct branches. For a lot more details: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828 The use of authentic tools manufacturer’s (OEM) portion quantities or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our organization and the detailed substitution components contained herein are not sponsored, authorized, or made by the OEM.

Htd  best  made in China - replacement parts -  in Verona Italy  Pitch Timing Synchronous Belt Pulley 5m with top quality

Htd  best  made in China - replacement parts -  in Verona Italy  Pitch Timing Synchronous Belt Pulley 5m with top quality