Poly-V Belt

Multi-V belt, also known as multi-groove belt, refers to an annular rubber transmission belt with a flat belt as the base and an equally spaced longitudinal 40° trapezoidal wedge arranged on the inner surface. Its working surface is the side of the wedge.

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3PJ 200/536 Poly-V Belt

536 PJ-3 - for Roller Conveyors (a = 200 mm) is an elastic polyurethane V-ribbed belt intended for

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Poly-V belt cross-sectional dimensions (excerpted from GB/T 16588-1996):

Type	Wedge distance pb	Wedge top arc radius rb, minimum value	Groove bottom arc radius rt, maximum value	With height h, approx.
PH	1.6 mm	0.3 mm	0.15 mm	3 mm
PJ	2.34 mm	0.4 mm	0.2 mm	4 mm
PK	3.56 mm	0.5 mm	0.25 mm	6 mm
PL	4.7 mm	0.4 mm	0.4 mm	10 mm
PM	9.4 mm	0.75 mm	0.75 mm	17 mm

Note: The values of wedge distance and belt height are only reference dimensions. The cumulative error of wedge distance is an important parameter, but it is affected by the working tension of the belt and the elastic modulus of the tensile body.

What is Poly-V Belt

Poly-v belt is a new type of transmission belt, it is in the flat belt substrate with a number of longitudinal triangular wedge ring belt, where the wedge surface is the working surface. This belt is also known as the composite triangle belt, its application has been more widely, especially for the requirements of the triangle belt root number is more or wheel axis perpendicular to the ground transmission.

Advantages of the multiribbed belt include higher power transmission, less vibration, and smooth operation, and it is suitable for occasions where the power transmission is large and the structure is required to be compact. In addition, the back side of the belt can also be driven, and an automatic tension adjuster can be used to make the drive safer and more reliable. Multi-wedge belts are especially suitable for high-speed transmission with compact structure and high transmission power.

Advantages of Poly-V Belt

High transmission power

The multi-spliced belt has high power transmission ability, which can adapt to the working requirements under various load conditions.

Low noise

The design form of poly-v belt can effectively inhibit the noise and improve the use of mechanical equipment environment.

Stable operation

Multi-coupling belt transmission allows a certain degree of sliding, can adapt to variable speed, variable load conditions, stable use.

Long service life

Multi-coupling belt has a long service life, which can effectively reduce the maintenance cost of mechanical equipment.

The Role of Poly-V Belt

Multi-coupling belt plays an important role in the mechanical transmission system, which is mainly manifested in the following aspects:

Transmission of power: Multi-wedge belts are often used for larger power transmission. In high speed, high load conditions, the sprags can effectively transfer power to ensure the normal operation of mechanical equipment.

Reducing transmission error: Multi-coupling belt adopts multi-coupling form, which makes the transmission error significantly reduced and realizes precise transmission control.

Reducing noise: The multi-wedge form of the belt makes the contact between the belt and the hub closer, reducing noise.

What Are the Application Scenarios of Poly-V Belt?

Transmission
• Machinery industry: Multi-coupling belt can be used in transmission, fan, clutch, reducer and other mechanical transmission system, with smooth transmission, low noise, long service life and other characteristics.
• Agricultural machinery: Multi-coupling belt can be used in the power transmission system and suspension system of agricultural machinery, such as tractors, harvesters, etc.
• Automobile industry: Multi-couplings can be used in the power transmission system of automobile engines, such as crankshafts, camshafts, generators and so on.
• Marine industry: Multi-wedge belts can be used in the power transmission system of ships, such as main engine, sub engine, etc.

Vibration reduction
Multi-couplings have good vibration damping performance and can be used in the following scenarios:
• Vibration damping of vibration equipment of heavy industrial production such as iron and steel mills, as well as vibration damping of units.
• Vibration damping of transportation equipment, such as wheel hub dampers for cars and trains.
• Vibration damping of construction equipment, such as elevators, lifts, etc.

Positioning
Multi-wedge belt can be used for precision positioning, mainly used in the following aspects:
• Printing machinery: Positioning and transmission of printing machinery, which can make the position of printing paper more precise.
• Conveyor machinery: The precise drive of the poly-wedge belt can ensure the positioning and correct alignment of the material during transmission.

What Are the Common Materials Used for Poly-V Belt?

Rubber poly-v belt
Rubber multiribbed belt is a common material for multiribbed belt, which is characterized by wear resistance, oil resistance, heat resistance and aging resistance. It is suitable for high speed and high load working conditions, and is widely used in automobile, engineering machinery, agricultural machinery and other industries. Rubber multiribbed belt also has good buffer performance and transmission smoothness, high transmission efficiency.

Polyurethane poly-v belt
Polyurethane multiribbed belt is a new type of multiribbed belt material, which has the characteristics of high strength, abrasion resistance, oil resistance, high temperature resistance and so on. Longer service life, suitable for high-speed high load conditions, in the wind turbine generator, general machinery and other fields have application prospects.

Polyester multiribbed belt
Polyester multiribbed belt is a cost-effective multiribbed belt material, with good elasticity, wear resistance, oil resistance and other characteristics, suitable for some medium-speed medium load conditions, in the air conditioning, refrigerators and other fields are widely used.

Installation Steps of Poly-V Belt

Preparation before installation
• Determine the installation position of the conveyor to ensure that it meets the requirements of the process flow, while taking into account the convenience of personnel operation, maintenance and overhaul.
• According to the size and weight of the conveyor, design a suitable support structure and foundation to bear the weight of the equipment and maintain its stability.
• Prepare the required installation tools and materials, such as screws, nuts and washers.

Installation of drive unit
• Including components such as motor, reducer and drive wheel. According to the design requirements, install the motor on the frame and connect the reducer.
• Make sure the centerline of the motor and reducer are aligned to reduce vibration and wear.

Installation of load-bearing parts
• These include rollers and drums, etc., which are used to support the conveyor belt and transmit power. Install the rollers and drums on the frame and adjust their position and height according to the width and length of the conveyor belt.
• Ensure that the axes of the rollers and drums are parallel to minimize belt wear and improve conveying efficiency. At the same time, check whether the rotation of the rollers and drums is flexible and add lubricant if necessary.

Installation of tensioning device
• It is used to adjust the tension of the conveyor belt to make it adapt to different loads and operating conditions. Install the tensioning device and adjust its position and height according to the design requirements.
• Ensure that the tensioning device can stably support the conveyor belt and has a certain range of adjustment. At the same time, check whether the movement of the tensioning device is smooth and add lubricant if necessary.

Laying the conveyor belt
• Before laying the conveyor belt, check whether its surface is flat and free from damage, and make sure its length matches the length of the frame.
• Lay the conveyor belt on the rollers and drums and adjust its position and tension. Ensure that the running path of the conveyor belt is free from obstructions to avoid snagging and abrasion.

Commissioning and acceptance
After completing the above installation steps, it is necessary to carry out commissioning and acceptance of the power multi-wedge belt roller conveyor. Check whether the installation of each component is firm and stable to ensure the safe and reliable operation of the conveyor. At the same time, carry out no-load and load test to observe the running status, noise and vibration of the conveyor. If there is any abnormality, make timely adjustment and treatment. After passing the acceptance, go through the relevant procedures and hand over the equipment to the using unit.

Standards for the Use of Poly-V Belt

Installation precautions
(1) Before installing the multiribbed belt, check whether the wheel groove of the pulley or gear is clean, in order to avoid debris, oil, etc. affecting the contact surface of the belt.
(2) Various specifications of the multiribbed belt should not be mixed to avoid affecting its transmission efficiency and service life.
(3) When fixing the multi-cuneiform belt, follow the correct tensioning force. Using it under insufficient or excessive tensioning force will cause the multi-cuneiform belt to slide or wear out.
(4) Multi-couplings cannot be used in over-tensioned or poorly contacted condition, otherwise it will lead to unsteady movement or even jumping.

Service life
(1) Used under normal conditions, the service life of the poly-v belt is generally 2 to 3 years, but it should be inspected and replaced periodically to prevent continued use at the end of its life.
(2) The tensioning force of the poly-v belt should be checked regularly to avoid slackening, skipping and wear of the belt, resulting in lower transmission efficiency.

Maintenance
(1) In the process of using the multiribbed belt, it should be kept clean, dry and free from direct sunlight.
(2) In the process of using the poly-v belt, if there is slackness, skinning, jumping, curling and other phenomena, it should be repaired or replaced immediately.

Precautions for Poly-V Belt

Use the multiribbed belt with the specified size and type.

Install with an anti-loosening device to prevent the threads from loosening and coming loose.

Check the load capacity of the reinforced part before installation to prevent damage due to over-tightening.

Use appropriate tools to avoid damage to the fastening area if the wedge needs to be removed or replaced.

Do not use outdated or damaged cogwheels.

Maintenance of Poly-V Belt

Regular inspection and maintenance: Regularly check the tension of the multi-coupling belt to ensure that it is within the proper range. Excessively tight or loose tension will affect the service life and transmission efficiency of the multi-coupling belt.

Timely replacement of severely worn parts: If you find signs of wear or damage to the multi-coupling belt, it should be replaced in time to avoid further damage or affecting the transmission effect.

Optimize the working conditions: Avoid prolonged working under high temperature and high load conditions, and ensure the normal operation of the engine cooling system to maintain the proper temperature.

Reduce vibration and shock: Use vibration dampers and shock absorbers to minimize the impact of vibration and shock on the multi-coupling belt.

Fatigue life test: Conduct fatigue life tests to evaluate the service life of the sprags under specific operating conditions, and adjust the maintenance program and replacement strategy based on the test results.

Correct Installation and Adjustment: When replacing the motor or adjusting the multi-coupling belt, make sure that the motor spindle is leveled to avoid damage to the pulleys or belt slippage due to the motor spindle not being leveled.

Appropriate preload of the multiribbed belt: When installing the multiribbed belt, the preload should be properly adjusted so that it is neither too small to cause slippage nor too large to cause premature damage.

Keep clean: When using a high-pressure water gun to clean the multiribbed belt, be careful not to wash dirt into the pulleys or grooves of the multiribbed belt, so as not to affect the transmission effect.

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SUN AUTOMATION GROUP LIMITED nearly 40 years of bearing support and industrial service experience. We have a stock warehouse and provide a variety of stock bearings. For special and rare ones, we can distribute the goods to the agents in the country of origin of each brand, and the MOQ is as low as 1 set. SUN AUTOMATION GROUP LIMITED has the ability to provide customers with professional bearing solutions. Quality, value and service are the industry that our company is based on.
Our warehouse has one of the largest stocks. We can guarantee direct delivery, and timely delivery and ensure the primary source. If special bearings are not stocked, we can allocate cargo from the agents of original countries such as Sweden, Germany, the U.S.A., and Japan.

FAQ

Q: What is a poly-v belt?

A: Poly-v belt, also known as composite V-belt, is a new type of transmission belt, which consists of a ring belt with several longitudinal triangular wedges attached under the flat belt base, and the wedge surface is the working surface. poly-v belt combines the advantages of V-belt transmission and flat belt transmission, and is widely used in many industries.

Q: What are the main characteristics of poly-v belt?

A: The main characteristics of poly-v belt include large transmission power, small vibration, smooth operation, small elongation and long service life. In addition, poly-v belt also has the advantages of large transmission capacity and elimination of uneven belt length.

Q: In which fields are poly-v belts mainly used?

A: Poly-v belts are widely used in the transmission fields of textile machinery, printing and dyeing machinery, airport logistics machinery, tobacco machinery, sports machinery, woodworking machinery, food machinery, automobile manufacturing machinery, ceramic machinery, steel machinery, stone processing machinery, papermaking and printing machinery, electronic machinery, glass deep processing machinery, hardware processing machinery, wire and cable and other industries.

Q: What should be paid attention to before installing a poly-v belt?

A: Before installing the poly-v belt, you need to check whether the wheel groove of the pulley or gear is clean to avoid debris, oil, etc. affecting the contact surface of the belt strip.

Q: Can poly-v belts of different specifications be mixed?

A: No. poly-v belts of various specifications cannot be mixed to avoid affecting their transmission efficiency and service life.

Q: How to fix the poly-v belt to ensure optimal performance?

A: When fixing the poly-v belt, follow the correct tension. Insufficient or excessive tension will cause the poly-v belt to slip or wear.

Q: What is the normal service life of the poly-v belt?

A: Under normal conditions, the service life of the poly-v belt is generally 2 to 3 years, but it should be checked and replaced regularly.

Q: How should the poly-v belt be maintained during use?

A: The poly-v belt should be kept clean, dry and protected from direct sunlight during use. If there is looseness, skinning, jumping, curling, etc., it should be repaired or replaced immediately.

Q: What are the reasons for the slippage of the poly-v belt?

A: The reasons for the slippage of the poly-v belt may include the small number of belt ribs, small pulley diameter, small contact angle, insufficient belt tension, water or oil on the belt, etc.

Q: How to solve the problem of poly-v belt slippage?

A: The methods to solve the problem of poly-v belt slippage include increasing the number of belt ribs, redesigning and selecting pulleys with suitable diameters, installing the back idler on the slack side, re-tensioning, installing the outer cover and cleaning the surface, etc.

Q: What is the reason for the cracks in the poly-v belt?

A: The reasons for the cracks in the poly-v belt may include the small number of belt ribs, foreign objects embedded in the belt or pulley rib grooves, small pulley diameters, loose belt tension, and too high or too low ambient temperatures.

Q: How to prevent cracks in the poly-v belt?

A: The methods to prevent cracks in the poly-v belt include increasing the number of belt ribs or selecting high-load belts, protecting the drive, redesigning and selecting pulleys with suitable diameters, adjusting the tension, and using cold-resistant and heat-resistant belts, etc.

Q: What are the reasons for severe wear of the poly-v belt?

A: The reasons for severe wear of poly-v belts may include misalignment of the groove wheel, poor roughness of the pulley, rust on the pulley, slippage of the belt, too large or too small radius of the arc of the top of the pulley groove, etc.

Q: How to reduce the wear of poly-v belts?

A: The methods to reduce the wear of poly-v belts include realigning the groove wheel, using a pulley with qualified roughness, removing rust from the pulley, using a slipping treatment method, using a pulley with a qualified groove top arc, etc.

Q: What is the reason for the noise of poly-v belts?

A: The reasons for the noise of poly-v belts may include slippage, foreign matter embedded in the groove, misalignment of the groove wheel, large vibration of the belt, contact between the belt and other components, etc.

Q: How to eliminate the noise of poly-v belts?

A: The methods to eliminate the noise of poly-v belts include using a slipping treatment method, protecting the drive, realigning the groove wheel, using a treatment method with large belt vibration, considering redesigning and changing the layout of the wheel system, etc.

Q: How efficient is a poly V-belt?

A: Poly-V Conveyxonic is an elastic belt that can be installed on a fixed center distance. Thanks to its 97% efficiency and no need for lubrication, these belts are a valid and cheaper alternative to chains.

Q: Is a poly V belt a timing belt?

A: The auxiliary drive belt, also named serpentine belt or poly-v belt, is a drive belt that works with the idlers, tensioners and pulleys within the accessory drive belt system. This belt should not be confused with a timing belt, which serves a completely different purpose.

Q: Do poly V belts stretch?

A: Made of rubber or urethane, these belts allow for a certain amount of stretch but, PV elastic belts don't stretch as a rubber band does; their elongation capability is generally less than 4%.

Q: What is a poly V-belt made of?

A: Materials. Dayco Poly-V belts are all made of EPDM (Ethylene-Propylene-Diene-Monomer) and guarantee: Excellent resistance.

We're well-known as one of the leading poly-v belt manufacturers and suppliers in China. If you're going to buy high quality poly-v belt with competitive price, welcome to get more information from our factory.

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