Heavy Duty V-Belts
New Generation Heavy-Duty 8V and D-Section V-Belts: Built for the Toughest Jobs
In demanding industries like aggregate screening, reliability isn’t optional—it’s critical. That’s why BESTORQ has developed the next generation of exceptionally heavy-duty 8V and D-Section V-Belts, engineered for the most punishing drive applications, including severe high shock load drives found in aggregate screeners with small back-bending belt idlers.
These belts don’t just meet expectations—they exceed them.
Consistent Quality
- Manufactured to tight uniformity standards
- Delivers reliable performance you can count on
Extreme Durability
- Belt body material resists cracking under constant back bending
- Maintains integrity even in heavy-duty applications
Multi-Layered Fabric Wrap
- Withstands cracking and wear in extreme environments
- Provides long wear resistance for extended service life
Oil & Heat Resistance
- Retains performance under high heat and oil exposure
- Meets ARPM standards for harsh operating conditions
Specifications
Heavy-Duty V-Belt Technical Specifications
| Material | Special Heavy-Duty Compound (resists cracking under back bending) |
| Tensile Cord | High-Modulus Polyester (Low Stretch) |
| Temperature Range | -70°F to 260°F |
| Applications | Designed for severe, high shock load drives on aggregate screeners and tree shakers with small (5.5″–8.5″ OD) flat back bending belt idlers |
| Available Sizes | D144HD, D158HD, D162HD, D167HD, D173HD, D180HD, 8V1400HD, 8V1500HD, 8V1600HD, 8V1700HD, 8V1900HD, 8V2000HD (more upon request) |
| Profiles Available | 8V, D-Section |
| Matching System | One Code Matching |
| Backside Idler Compatible | Yes |
| Certifications | ARPM Compliance, Oil & Heat Resistant |
Applications
Performance You Can Trust
Whether you’re in mining, quarrying, or any industry with high-impact drive systems, downtime is costly. Our heavy-duty 8V and D-Section belts help you reduce maintenance cycles, improve uptime, and lower total cost of ownership—all while delivering outstanding performance at a competitive price point.
Even in these extreme setups, these belts maintain performance and resist premature failure.
Heavy-Duty 8V and D-Section Belt Applications
BESTORQ Heavy-Duty 8V and D-Section belts are purpose-built for:
find the right belt
Belt Tools & Resources
V‑Belt Quick Selection Guide
Answer a few specs to zero in on the right profile and length.
View Guide
Belt Length Calculator
Enter pulley diameters & center distance; get exact belt length and nearest stock size.
Calculate Length
Stock Sizes Library
See what’s on the shelf and ready to ship by profile and length.
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FAQ
You Have Questions. We Have Answers.
What makes BESTORQ Heavy-Duty V-Belts different from standard belts?
Heavy-Duty V-Belts are built with a special compound and multi-layer fabric wrap to resist cracking, even under constant back bending. They’re engineered for high shock load applications and can last 3–5 times longer than typical belts in extreme drive condition tests.
What applications are Heavy-Duty V-Belts best suited for?
They’re ideal for severe-duty equipment such as aggregate screeners, tree shakers, and other drives that involve high shock loads and small backside idlers (5.5″–8.5″ OD).
Can Heavy-Duty V-Belts be used with backside idlers?
Yes. They’re specifically designed to perform well with undersized backside idlers, maintaining durability and flexibility under repeated back bending.
How do they perform in extreme temperatures?
Heavy-Duty V-Belts meet ARPM oil and heat resistance standards, ensuring reliable operation in demanding environments.
Do these belts require special installation procedures?
No special tools are required, but proper tensioning and alignment are essential to maximize service life and performance.
What profiles and sizes are available
Heavy-Duty V-Belts are available in a range of D-Section and 8V sizes. Common sizes include D144HD, D158HD, D162HD, D167HD, D173HD, D180HD, 8V1400HD, 8V1500HD, 8V1600HD, 8V1700HD, 8V1900HD, and 8V2000HD. Contact us for size availability.
