Your Professional Serpentine Belt Manufacturer
If you’re more concerned about the performance of your serpentine belt, ZQDrive serpentine belts (also known as poly V-belts) are the best choice for you. Our serpentine belts comply with ISO 9982 (DIN 7867), ISO 1813, and RMA IP-26 standards, providing consistent drive performance even under harsh conditions.
ZQDrive offers a variety of serpentine belt types, including PH Belt, PJ Belt, PK Belt, PL Belt, PM Belt, and double-sided serpentine belts (DPK Belt and DPH Belt).
Serpentine belts support custom sizes and rib numbers, whether you’re using them on an automotive engine, heavy machinery, or agricultural equipment, ZQDrive serpentine belts can meet your needs.
ZQDrive serpentine belts transmit 30% more power than ordinary V-belts and have a life expectancy of up to 100,000 km, resulting in lower drive costs and longer belt life. Choose our serpentine belts to help reduce noise and vibration, lower maintenance costs, and increase equipment productivity.
Serpentine Belt
Our serpentine belts have different models. Some are listed below.
Advantages of Our Serpentine Belt
Stable operation within a temperature range of -40°C to 130°C.
Each EPDM serpentine belt has a service life of up to 100,000 km.
Serpentine belt transmit 30% more power than standard V-belt.
Multiple ribs structure effectively reduces vibration and noise.
Certified by IATF 16949, etc., 100% pre-shipment inspection of belts and packaging.
Multi-wedge anti-slip structure improves belt anti-slip performance.
Provide real-time production photos of serpentine belt.
10K+ SKUs in stock, fast shipping within 72 hours.
Choosing the Right Serpentine Belt
Different ZQDrive serpentine belt types are suitable for different applications:
- PH Poly-V Serpentine Belts: specialised for small drives
- PK Poly-V Serpentine Belts: Automotive Applications
- PL Poly-V Serpentine Belts: Industrial Applications
- PM Poly-V Serpentine Belts: high-power industrial applications. such as large conveyors and agricultural equipment
- DPK Poly-V Serpentine Belts: for motor vehicles such as vans, trucks, tractors, and cars
From small drives to heavy-duty machinery, ZQDrive belts have the right serpentine belt for you.
The Best Serpentine Belts for You
ZQDrive serpentine belts combine the features of V-belts and flat belts with an operating temperature range of -40°C to 130°C. The serpentine belts are highly conductive and flexible, with low vibration and quiet operation for efficient and stable transmission. Our serpentine belt features anti-static, heat and cold-resistant, abrasion-resistant, and ageing-resistant properties, ensuring smooth running.
Serpentine belts are easy to install and require only 1 – 3% pretension for stable transmission, and their excellent performance makes them stable and reliable in large ratio scenarios, always maintaining consistent transmission performance and providing reliable protection for your transmission needs.
Judge the Life of a Serpentine Belt
The service life of serpentine belts can vary depending on the environment, temperature, and operating conditions. We have provided benchmark estimates for the service life of serpentine belts in three common rubber materials, and all mileage estimates are for reference only and are based on standard operating conditions:
- NR Poly-Vbelt: 20,000 – 30,000 km
- CR Poly-Vbelt: 50,000 – 80,000 km
- EPDM Poly-Vbelt: 100,000 – 150,000 km
Resource
ZQDrive will provide you with real-time updates on the serpentine belt product catalog. You can also contact us at any time to obtain the latest information.
For serpentine belt, ZQDrive will provide product descriptions and specifications in real time. You can also contact us for more information.
Company videos, factory videos, and production process demonstration videos related to ZQDrive.
Company Advantage
We have been focusing on the serpentine belt field for over 25 years and can provide customers across various industries with material options, including EPDM, NR, and CR. With our advanced rubber mixing line, rotary drum vulcanizer, CNC wedge grinding, and other equipment, we have achieved high production efficiency, ensuring that every serpentine belt meets the standards. This helps your equipment run efficiently for a long time.
Serpentine belts are regularly serviced and replaced when necessary
- Service life and mileage:Most serpentine belts have a life span of 50,000 to 100,000km. Even if there is no visible wear and tear, replacement is recommended if your vehicle has reached this mileage range or if the belt has been in use for more than five years.
- Abnormal noise: If your engine starts or runs with a screeching, harsh noise, it may be a sign that the serpentine belt is worn, loose, or slipping on the pulleys.
- Damaged or worn belt surfaces: Watch for signs of cracks, wear, breaks or missing rubber on the serpentine belt surface. If you find these conditions, it’s time to replace the belt.
- Engine stalling or black smoke: In rare cases, serious damage to the serpentine belt may cause the engine to stall or black smoke to come out of the exhaust pipe, requiring immediate attention.
- Abnormal operation of engine accessories: If you notice any of the following, it may be due to a serpentine belt failure
- Heavier steering
- Air conditioner malfunctioning
- Engine overheating
- Battery warning light comes on
The structure of the serpentine belt includes:
- Fabric cover: protects the internal structure of the serpentine belt from damage.
- Tensile member: responsible for transmitting power and maintaining the dimensional stability of the belt.
- Adhesive rubber: Used to firmly bond the tensile member to the other rubber layers, which improves the durability and stability of the overall structure.
- Synthetic rubber ribs: Provide flexibility to the belt and friction with the pulleys.
Although serpentine belts and timing belts are relatively common drive belts, they are used for different purposes.
- Serpentine belt: Responsible for driving alternators, power steering pumps, and other accessories to keep these engine parts running properly.
- Timing belt: Responsible for synchronising the camshaft and crankshaft. Makes the intake and exhaust valves of the engine open or close at the correct moment.
When you look at the grooves in the belt, you can easily tell the difference. Timing belts have teeth on the inside designed to precisely engage the camshaft and crankshaft to prevent slippage. Serpentine belts have multiple V-shaped ribs for increased friction with the pulleys of each part.
Common causes of serpentine belt breaks are:
- Aging and Wear: When serpentine belts are used for a long time, the belts will gradually age due to friction, high temperatures and repeated bending, and the rubber will become brittle and crack, eventually leading to breakage.
- Tensioner or Pulley Failure: If the pulley bearings are damaged or wobbly, this can cause uneven force or excessive friction on the serpentine belt, which can break.
- Improper or Misaligned Belt Installation: Serpentine belts that are not properly aligned or are not properly tensioned can easily cause belt edges to fray, slip or even break quickly.
- Abnormal tensioning force: Tensioners that are too tight or too loose will affect the life of the serpentine belt. Over-tensioning will stretch, deform or even break the belt. If the tensioner is too loose, it is easy to slip and jump teeth.
- Foreign object entry: If foreign objects such as stones, sand, etc. are involved in the pulley, they will directly cut or damage the serpentine belt.
- Belt quality problems: Poor quality serpentine belts or defective serpentine belts are prone to early breakage.
Most cars typically have only one serpentine belt. The serpentine belt transmits power through pulleys that drive various parts in the car.
Of course, some car models may have two serpentine belts, but this is relatively rare, and more often than not, there is still only one.