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8V V-Belt Sheave
8V V-belt Sheave
The 8V sheave is the largest cross-section in the American standard narrow V-belt family (per ARPM IP-22). Designed for the highest power class in industrial V-belt drives, it delivers up to 3x the horsepower capacity of a 5V drive in the same space, making it the go-to choice for heavy rotating equipment that cannot afford downtime. Each sheave is dynamically balanced to ISO 1940 G6.3, ensuring vibration-free operation at speeds up to 4,000 fpm belt speed and beyond.
Available in pilot bore, finished bore, and QD bushed designs from stock, with standard groove counts from 2 to 12 grooves. For special applications, CTS machines 8V sheaves to customer drawings with custom bore sizes, keyways, and hub configurations.
Typical 8V sheave range: pitch diameters from 12.5" to 80" (318 mm to 2032 mm), single-groove power ratings up to 200+ HP depending on belt speed and service factor.
8V Sheave Configurations
All configurations are available as pilot-bored, finished-bore, or QD-bushed. Multiple grooves distribute load across several 8V belts, which is the standard solution for high-horsepower, low-speed-ratio drives.
8V Sheave Selection
| Image | 8V V-Belt Sheave | Description | In stock | More |
|---|---|---|---|---|
 | 12 Grooves 8V QD Sheave | High-strength cast iron 12 grooves 8V sheave for compact, high-speed industrial power transmission. | In Stock | |
 | 10 Grooves 8V QD Sheave | High-strength cast iron 10 grooves 8V sheave for compact, high-speed industrial power transmission. | In Stock | |
 | 8 Grooves 8V QD Sheave | High-strength cast iron 8 grooves 8V sheave for compact, high-speed industrial power transmission. | In Stock | |
 | 6 Grooves 8V QD Sheave | High-strength cast iron 6 grooves 8V sheave for compact, high-speed industrial power transmission. | In Stock | |
 | 5 Grooves 8V QD Sheave | High-strength cast iron 5 grooves 8V sheave for compact, high-speed industrial power transmission. | Email/Call |
Applications of 8V Sheaves
HVAC System
Used in industrial fans, blowers, and ventilation equipment requiring stable high-speed operation.
Pumps & Compressors
Heavy reciprocating and centrifugal compressor drives, high-pressure pump systems.
Mining & Aggregate Equipment
Crushers, vibrating screens, belt feeders, and conveyor drives operating under shock loads and constant duty.
Agricultural Machinery
Applied in harvesting equipment, grain handling systems, and various agricultural drive applications.
Conveyor & Material Handling System
Used in industrial conveyors and automated production systems for efficient power transmission.
General Industrial Machinery
Suitable for machine tools, packaging equipment and other industrial power transmission systems.
Precision Manufacturing of Cast Iron 8V Sheaves
Every CTS 8V sheave follows a controlled manufacturing route designed for repeatable quality:
1. High-grade gray cast iron casting with chill-resistant groove areas
2. Stress-relief heat treatment to maintain dimensional stability
3. CNC turning and profile machining of grooves to ARPM tolerances
4. Precision bore and keyway machining (keyway per ANSI B17.1)
5. Dynamic balancing to ISO 1940 G6.3
6. Surface treatment: black oxide, phosphating or painting per request
7. 100% final inspection: groove angle, pitch diameter, bore fit and balance report
Each sheave is checked against the customer's belt and shaft specification before
Why Choose CTS 8V Sheave
High-Strength Cast Iron
Pilot Bore/ QD/ Finished Bore
Support OEM Service
Export North America/ Europe
Bulk Order Support
Drawing & Selection Assistance
Need Help Selecting the Right 8V Sheave?
CTS provides professional support for industrial power transmission applications. Send us your belt type, shaft size, RPM, and application details for fast product selection and quotation support.
FAQ
What is the difference between 8V and 5V sheaves?
8V is the largest standard narrow V-belt cross-section (1" top width vs 5/8" for 5V). An 8V drive carries roughly double to triple the horsepower of a comparable 5V drive, so it is used where space is limited but power demand is high — typically above 100 HP per drive.
Are your 8V sheaves compatible with standard QD bushings?
Yes, our QD bushed 8V sheaves are compatible with standard industrial QD bushing systems commonly used in North America.
Do you provide dynamic balancing reports?
Yes. Standard production is balanced to ISO 1940 G6.3, and balance reports can be provided on request for critical applications.
Ask CTS？
Having trouble finding the product you need? Send us an email with your question or message, and we'll quickly respond with tailored solutions. We're eager to hear from you! Expect top-notch precision, reliability, efficiency, and performance. Let's redefine excellence together.
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