China OEM 4L290 A27 Mowers Garden Kevlar V-Belt axle barbell

Product Description

4L290 A27 Mowers Garden Kevlar V-Belt

4L290 CLASSIC V-Belt

Which is for Lawn mower, lawn tractor etc
Salt Pepper Wrappered Banded V-belt with Kevlar core band

4L cross section v-belts provide energy saving and high performance, a premium v-belt ideally suited for clutching application. Length stable kevlar corded – made with DuPont Kevlar (cotton covered) provides fewer take-ups and length adjustments. Longer life coupled with high heat and oil resistance.

 

Kevlar Cord Wrapped V Belt , W color sleeve package For 70″ Lenght Below  ;  Salt & Pepper  Color ; 3L Top Width 3/8″ Thickness 7/32″    4L Top Width 1/2″ Thickness 5/16″ ;  5L Top Width 21/32″ Thickness 3/8″  ; Total Length is based on outside length 
3L
3L290 29″
3L300 30″
3L320 32″
3L330 33″
3L340 34″
3L350 35″
3L360 36″
4L
4L270 27″
4L280 28″
4L290 29″
4L300 30″
4L310 31″
4L320 32″
4L330 33″
4L340 34″
4L350 35″
4L360 36″
4L370 37″
4L380 38″
4L390 39″
4L400 40″
4L410 41″
4L420 42″
4L430 43″
4L440 44″
4L450 45″
4L500 50″
4L510 51″
4L520 52″
4L670 67″
4L710 71″
4L740 74″
4L770 77″
4L780 78″
4L790 79″
4L820 82″
4L830 83″
4L840 84″
4L880 88″
4L900 90″
4L930 93″
4L950 95″
4L960 96″
5L
5L360 36″
5L370 37″
5L380 38″
5L390 39″
5L690 69″

FAQ:

 

Notice

1. We maintain high standards of customer satisfaction! Your feedback is very important to us. Before giving us neutral or negative feedback, please contact us to satisfactorily address your concerns.

2.  Please compare the good’s appearance, shape, size with your original parts before ordering.

3.  Due to the different color resolution settings of the display,  the plastic parts may have a color difference, please know it.

4.  All our products are non-assembled, pictures are for reference only.

Problem with An Order?

We work hard to get everything right but mistakes happen and we want to fix them quickly, please ask any questions using the Made-in-China system before starting a dispute.

Feedback

We maintain high standards of CZPT and strive for 100% customer satisfaction! If you are not satisfied with our products or services please contact us first, sincerely hope through our cooperation, we can resolve the problems smoothly.

About Us

We do retail and wholesale for gasoline chainsaw, brush cutter, grass trimmer, and other garden tool parts. Welcome here to pick out and buy.

Contact

If you have questions or problems please leave messages, we will reply to you as soon as possible.

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Certification: RoHS, CE, ISO, CCC
Power Source: Gasoline
Type: Trimmer Mower Belt
Material: Rubber
4L L4 Section: Kevlar V-Belt 29 Inch Lenght
Structure (for Chain): Plate Chain
Samples:
US$ 19/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

v belt

What are the key differences between standard V-belts and cogged V-belts?

Standard V-belts and cogged V-belts are two variations of V-belts that differ in their design and performance characteristics. Here are the key differences between these two types of belts:

  1. Design:
  2. Standard V-belts have a smooth, continuous surface on the inside, which comes in contact with the pulleys. On the other hand, cogged V-belts have notches or cogs on the inside surface. These cogs allow the belt to flex more easily and improve its flexibility and bending capabilities.

  3. Flexibility:
  4. The presence of cogs in cogged V-belts makes them more flexible compared to standard V-belts. This increased flexibility allows cogged V-belts to bend and wrap around smaller pulleys more easily. It also reduces the bending stress and heat generation, resulting in improved performance and longer belt life.

  5. Heat Dissipation:
  6. Cogged V-belts have better heat dissipation properties compared to standard V-belts. The cogs create additional surface area, which improves airflow and heat dissipation during operation. This helps to reduce heat buildup and minimize the risk of belt slippage or premature wear due to excessive heat.

  7. Power Transmission Capacity:
  8. Standard V-belts and cogged V-belts have similar power transmission capacity for most applications. However, cogged V-belts may have a slightly reduced power capacity compared to standard V-belts due to the presence of cogs, which can reduce the contact area with the pulleys. As a result, cogged V-belts are typically used in applications that require moderate power transmission.

  9. Noise and Vibration:
  10. Cogged V-belts generally produce less noise and vibration compared to standard V-belts during operation. The presence of cogs helps to reduce the vibration and noise caused by belt slippage or engagement with the pulleys. This makes cogged V-belts suitable for applications where noise reduction is important, such as in HVAC systems or household appliances.

  11. Application Suitability:
  12. Standard V-belts are commonly used in a wide range of industrial applications for power transmission. They are suitable for applications with larger pulleys and higher power requirements. Cogged V-belts, on the other hand, are often preferred in applications that involve smaller pulleys, tighter spaces, or where improved flexibility and reduced noise are desired.

It’s important to consider the specific requirements of the application and consult the manufacturer’s recommendations when choosing between standard V-belts and cogged V-belts. Understanding the key differences between these two types of belts can help in selecting the most appropriate option for a particular power transmission application.

v belt

What are the key differences between V-belts and other types of power transmission belts?

V-belts are a popular type of power transmission belts, but they differ from other types of belts in terms of design, construction, and specific applications. Here are the key differences:

1. Belt Profile:

V-belts have a trapezoidal or V-shaped cross-sectional profile, which gives them their name. This profile allows the belts to fit securely into V-shaped pulleys, providing effective power transmission and grip. Other types of belts, such as flat belts or timing belts, have different profiles suited for specific applications.

2. Power Transmission Method:

V-belts transmit power through frictional forces between the belt and the pulleys. As the belt wraps around the pulleys, the friction between the belt and the pulley surfaces allows the transfer of torque and power. In contrast, other belts, like timing belts or chain drives, use toothed profiles or interlocking mechanisms to transmit power, providing precise synchronization and higher torque transmission.

3. Load Capacity:

V-belts are designed to handle moderate to high loads, making them suitable for a wide range of applications. However, certain applications with heavier loads may require specialized heavy-duty V-belts or alternative belt types, such as synchronous belts or chain drives, which offer higher load-carrying capacities.

4. Speed Range:

V-belts are suitable for a broad speed range, but their limitations may vary depending on the specific design, material, and construction. Traditional V-belts may have speed limitations at extremely high speeds due to centrifugal forces and heat generation. High-speed V-belts or narrow V-belts are available for applications that require higher speeds. In contrast, timing belts and synchronous belts are designed for precise speed control and are commonly used in applications with strict speed requirements.

5. Tensioning and Maintenance:

V-belts require periodic tensioning to maintain proper grip and power transmission efficiency. Tensioning is typically achieved through manual adjustment or automatic tensioners. Other types of belts, such as timing belts or chain drives, often have fixed tensioning systems and require less frequent maintenance.

6. Noise and Vibration:

V-belts generally operate with lower noise and vibration levels compared to other types of belts, such as chain drives. The design and frictional nature of V-belts contribute to smoother operation and reduced noise generation, making them suitable for applications where noise and vibration control is important.

7. Applications:

V-belts are widely used in various applications, including industrial machinery, automotive systems, HVAC systems, and power transmission in general. They are versatile and can accommodate different power requirements. Other belt types, such as timing belts, are commonly used in precision positioning, robotics, or applications that require synchronous motion.

Overall, V-belts offer reliable and cost-effective power transmission for a wide range of applications. However, the selection of the appropriate belt type depends on factors such as load requirements, speed range, precision, noise considerations, and specific application needs.

v belt

What are the signs of a worn or damaged V-belt that needs replacement?

A worn or damaged V-belt can lead to decreased performance, increased energy consumption, and potential equipment failure. Recognizing the signs of a worn or damaged V-belt is important for timely replacement and preventing further damage. Here are some common signs to look out for:

  1. Visible wear: Inspect the V-belt for visible signs of wear, such as fraying, cracking, or glazing. Excessive wear indicates that the belt has reached the end of its service life and should be replaced.
  2. Chunking or missing pieces: If the V-belt shows signs of chunking or has missing pieces, it is a clear indication of severe damage. This can occur due to excessive tension, overloading, or prolonged use beyond the belt’s capacity.
  3. Excessive noise: A worn or damaged V-belt may produce noticeable noise during operation. This can be in the form of squealing, screeching, or rumbling sounds. The noise is often caused by slipping, misalignment, or belt degradation.
  4. Slippage: If the V-belt slips on the pulleys, resulting in reduced power transmission or inconsistent operation, it indicates a problem. Slippage can occur due to incorrect tension, pulley misalignment, or insufficient grip caused by belt wear.
  5. High heat or burning smell: Excessive heat generated by a V-belt can indicate friction caused by belt slippage or misalignment. If you notice a burning smell or feel excessive heat near the belt drive system, it is a sign of potential belt damage.
  6. Loss of tension: If the V-belt consistently loses tension and requires frequent readjustment, it indicates wear or elongation. Over time, the belt may stretch and lose its original tension, resulting in reduced power transmission efficiency.
  7. Reduced power transmission: A worn or damaged V-belt may struggle to transmit the required power, leading to decreased equipment performance. This can result in slower operation, reduced torque, or inability to handle the load.
  8. Visible cracks or separation: Cracks or separation in the V-belt’s rubber material are clear signs of damage. These can occur due to age, exposure to harsh environments, or chemical degradation. Cracked or separated belts should be replaced immediately.
  9. Shortened belt life: If a V-belt consistently fails or requires replacement sooner than its expected service life, it indicates a problem. Factors such as incorrect tensioning, misalignment, or excessive load can contribute to premature belt failure.

If you observe any of these signs in a V-belt, it is recommended to replace the belt promptly. Continuing to use a worn or damaged V-belt can lead to further damage, increased downtime, and potential equipment failure. Regular maintenance and inspections are essential for identifying and addressing these signs early, ensuring the reliability and longevity of the V-belt system.

China OEM 4L290 A27 Mowers Garden Kevlar V-Belt   axle barbellChina OEM 4L290 A27 Mowers Garden Kevlar V-Belt   axle barbell
editor by CX 2024-04-04


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