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Pioneer alternator fan belt uses CR or EPDM as main rubber material, polyester cord or aramid fiber as reinforcement material, manufactured strictly according to technical standards. The belt has the advantages of good flexibility, steady transmission, low noise and long life etc.
Features
● High temperature resistance comparable to HNBR
● Cold resistance better than ASCM,HNBR and CR
● Good wear and pilling resistance
● Alternator serpentine belt linear belt speeds up to 60 m/s
● High strength and heat memory tensile cord is made of special material. With its features of high transmission efficiency and thermal shrinkage, it can keep the constant length and prolong the belt lifespan.
Specification
SPECIFICATION | ||||||
Section | Width (mm) | Thickness (mm) | Rib Pitch (mm) | Min. Pulley Dia. (mm) | Manufacturing Range | |
Min. (mm) | Max. (mm) | |||||
3PK | 10 | 4.5 | 3.56 | 45 | 300 | 5000 |
4PK | 13.6 | 4.5 | 3.56 | 45 | 300 | 5000 |
5PK | 17 | 4.5 | 3.56 | 45 | 300 | 5000 |
6PK | 20.7 | 4.5 | 3.56 | 45 | 300 | 5000 |
7PK | 24.3 | 4.5 | 3.56 | 45 | 300 | 5000 |
8PK | 27.8 | 4.5 | 3.56 | 45 | 300 | 5000 |
9PK | 31.4 | 4.5 | 3.56 | 45 | 300 | 5000 |
10PK | 35 | 4.5 | 3.56 | 45 | 300 | 5000 |
11PK | 37.4 | 4.5 | 3.56 | 45 | 300 | 5000 |
12PK | 40.8 | 4.5 | 3.56 | 45 | 300 | 5000 |
Applications
Alternator drive belts widely used in Automotive industry.
Alternator fan belt wear analysis
① GRAVEL PENETRATION
Appearance: Small pinholes are visible on the backside of the belt. Bumps may be visible and fabric around the holes can be frayed.
Cause: Granular gravel or pebble gravel is wedged between the belt groove(s) and pulley ridge(s). Cars where the engine protection shield is missing are likely to have this problem.
Solution: Check the entire drive and then replace with a Pioneer poly v belt, which is precision ground in the factory for a better pulley fit. Make sure the new belt runs on perfect pulleys. Install an engine protection shield.
② OIL CONTAMINATION
Appearance: The belt surface is flaky, sticky or swollen.
Cause: Oil and grease are a rubber compound's worst enemies, weakening the compound's bonds and making the belt soft and spongy. Eventually, such a belt will slip, create heat and fail.
Solution: Eliminate sources of oil, grease or chemical contamination. Replace the belt. Do not use belt sprays.
