Your Trusted PJ Belt Supplier in China
A PJ belt is a standard cross-section type of serpentine belt. It features a multi-rib structure design that perfectly matches the grooves of the pulley. This structural design effectively improves grip and reduces slippage, while ensuring low noise during operation. It can also be easily adapted to situations where installation space is limited.
ZQDrive PJ belt complies with ISO and RMA standards, has antistatic properties, and can operate in a temperature range of -30°C to +60°C. It can even withstand environments of up to +80°C for short periods of time. Therefore, it is ideal for use in your transmission applications involving small pulley diameters, high transmission ratios, high speeds, serpentine drives, and curved/reverse tension idlers.
PJ Belt By Ribs
3PJ Belt
4PJ Belt
5PJ Belt
6PJ Belt
7PJ Belt
8PJ Belt
9PJ Belt
10PJ Belt
11PJ Belt
12PJ Belt
PJ Belt – Your Trusted Compact Drive System Solution
The PJ belt is ideal for space-constrained, high-torque drive or high-transmission ratio applications, and is designed specifically for compact, high-speed drive systems. It can achieve high power output in confined spaces, and with the same transmission power, ZQDrive PJ belt transmission device takes up 25% less space than a conventional V-belt, has an operating efficiency of up to 96%, and a maximum speed of up to 60 m/s. In addition, the ZQDrive PJ belt allows for use with smaller pulley diameters (minimum pulley diameter of 20 mm), helping you reduce the overall drive footprint and ensuring quiet and efficient operation.
Multi-Layer Structure Extends the Service Life of PJ Belt
ZQDrive PJ belt is made of high-quality rubber material, which is resistant to high temperatures, oil, and wear.
Its top cover is fabric reinforced, effectively resisting reverse bending and wear caused by the back idler. High-strength tensile members that have undergone special treatment can withstand impact loads while maintaining good load-bearing performance even on small-diameter pulleys. The rib design enhances the belt’s grip and flexibility.
The structure of the PJ belt can meet the requirements of long-term continuous operation, thereby extending the service life of your belt and reducing maintenance.
PJ Belt Suitable for Your Drive Application
ZQDrive PJ belts are widely used in high-speed drives and high transmission ratio applications, and are particularly suitable for use in compact drives. Their areas of application include:
- Industrial Machinery: Conveyors, HVAC units, compressors, lawn mowers, pumps, machine tools, industrial fans, etc.
- Automotive Industry: Power steering pumps, air conditioning compressors, alternators, serpentine drive systems, etc.
- Fitness Equipment: Treadmills, rowing machines, etc.
- Home Appliances: Vacuum cleaners, washing machines, dryers, etc.
- Office Equipment: printers, scanners, printing machines, etc.
- Medical Equipment, etc.
PJ belt and PK belt are both types of serpentine belts, also known as poly v belts.
The main difference between PJ belt and PK belt is the rib pitch. The rib pitch of PJ belt is 2.34 mm, while that of PK belt is 3.56 mm.
In addition, there are differences in the application of PJ belts and PK belts. PJ belts are suitable for small horsepower applications such as home appliances and power tools, while PK belts are more widely used in the automotive field.
Before installing the PJ belt, first confirm that the belt surface is clean, free of cracks and wear, and check that the pulley groove is clean and free of foreign matter.
During installation, place the PJ belt correctly into the corresponding pulley groove and ensure that the belt is flat and free of twists. Adjust the belt tension using the tensioning device according to the manufacturer’s recommended values to avoid excessive tightness or looseness, which could cause slippage or excessive wear.
After installation, the belt tension should be checked again after the equipment has been running for a period of time to ensure that the transmission system is operating correctly.
Yes, ZQDrive can customize PJ belts of different lengths, widths, and rib counts according to your needs to meet your personalized requirements.
To extend the service life of the PJ belt, it is recommended to perform maintenance according to the following methods:
- Keep clean: Clean the PJ belt and pulley regularly to remove dust, oil stains, and other impurities.
- Regular inspection: Inspect the PJ belt for cracks, wear, or notches, and check the pulley for wear and alignment. Replace as necessary.
- Maintain appropriate tension: When installing and using the PJ belt, ensure that the belt tension is correct, neither too tight nor too loose, to avoid damaging parts or affecting performance.
- Proper storage: The storage environment should be cool and dry, protected from direct sunlight and contact with chemicals.
PJ belt is similar in structure to banded v belt, but there are obvious differences.
PJ belt does not have standard, narrow, or wedge v belt cross-sectional dimensions like banded v belt, but instead uses a more compact and thinner structural design, making the belt more flexible. It is particularly suitable for driving multi-wheel systems, especially for applications that require high power transmission efficiency and have limited space. In contrast, banded v belt usually consists of multiple V-shaped belts, with the main purpose of providing higher load capacity and more uniform load distribution.