At YF Gear, we specialize in precision-engineered Belt Pulleys that deliver stable performance, low noise, and long service life across a wide range of mechanical transmission applications.
From industrial conveyors and HVAC fans to agricultural machinery and general automation systems, our pulleys are built to withstand demanding operating conditions while maintaining high efficiency and belt stability.
We provide a variety of materials, groove designs, and surface treatments to ensure optimal compatibility with V-belts, flat belts, and multi-rib belts — enabling you to achieve smooth, slip-free transmission with reduced maintenance costs.
A Belt Pulley transmits rotational motion between shafts using frictional contact with a belt.
Unlike gear systems, it allows quiet, flexible, and shock-absorbing operation, making it ideal for applications requiring cost-effective power transfer.
At YF Gear, we design pulleys with precision-machined grooves, balanced hubs, and corrosion-resistant finishes to ensure alignment accuracy and belt longevity.
Each pulley is engineered using advanced CNC machining and dynamic balancing technology to meet international industrial standards.
| Parameter | Range / Option | Description |
|---|---|---|
| Material | Ductile Iron QT500, Galvanized Steel, Nylon Composite | Combines strength, corrosion resistance & lightweight design |
| Groove Type | V-Belt / Flat / Multi-Rib / Custom | Compatible with various belt profiles |
| Outer Diameter | 50 mm – 800 mm (customizable) | For light and heavy-duty applications |
| Bore Type | Pilot Bore, Taper Lock, Custom Keyway | Fits different shaft configurations |
| Groove Tolerance | ± 0.1 mm | Ensures belt positioning precision |
| Balance Grade | G6.3 Dynamic Balance | Smooth high-speed performance |
| Surface Treatment | Zinc Plating, Painting, Anodizing | Anti-rust and extended service life |
| Operating Temp. | −30 °C – +150 °C | Suitable for outdoor & high-temp environments |
| Transmission Efficiency | ≥ 95 % | High energy conversion with minimal slippage |
| Certification | ISO 9001 / RoHS | Global quality and environmental standards |
Our production integrates advanced CNC lathes, automatic balancing systems, and precision inspection tools.
Production Flow:
1️⃣ Raw Material Casting / Forging
2️⃣ CNC Machining for Hub & Groove
3️⃣ Dynamic Balancing (G6.3 Class)
4️⃣ Surface Treatment (Plating / Coating)
5️⃣ Dimensional & Runout Inspection
6️⃣ Load Testing & Endurance Simulation
7️⃣ Protective Packaging & Shipment
Quality Highlights:
100% groove precision inspection
Salt-spray corrosion testing
Dynamic balance verification
Full traceability via batch labels
| Feature | Belt Pulley | Timing Pulley | Gear Drive |
|---|---|---|---|
| Transmission Type | Friction | Positive Drive | Positive Drive |
| Synchronization Accuracy | Medium | High | High |
| Noise Level | Low | Very Low | Variable |
| Maintenance | Low | Very Low | Medium |
| Cost Efficiency | ★★★★★ | ★★★★☆ | ★★★☆☆ |
| Alignment Sensitivity | Moderate | Moderate | High |
| Typical Application | Fans, Conveyors, Motors | Robotics, Automation | Heavy Machinery |
Tip for Selection:
Choose Belt Pulley for reliable, flexible, and economical power transfer in general machinery.
Use Timing Pulley for synchronization and precision.
Adopt Gear Drive when torque transmission and mechanical rigidity are the priorities.
| Industry | Typical Use | Customer Benefit |
|---|---|---|
| HVAC & Ventilation | Blower fans, air handling units | Quiet & vibration-free performance |
| Industrial Conveyors | Power transmission systems | Long belt life, minimal maintenance |
| Agricultural Equipment | Tractor drives, irrigation pumps | Dustproof & anti-corrosion design |
| Food & Packaging Machinery | Conveyor belts, sealing machines | Easy cleaning & durable materials |
| Machine Tools & Automation | Motor drives, spindle systems | Smooth, shock-absorbing motion |
Tested Reliability:
✔ Continuous 3,000-hour operation in field equipment
✔ Stable torque under varying load and humidity
✔ Zero visible deformation after thermal cycling
Precision Manufacturing – ±0.1 mm tolerance ensures smooth operation and belt stability.
Versatile Compatibility – Works with standard V-belts, multi-groove, and flat belts.
Durable Performance – Corrosion-resistant and impact-tolerant materials.
Customized Solutions – Size, groove, and bore options tailored to your system.
Proven Quality – 100% inspected and ISO-certified for international reliability.
Global Supply Capability – Fast response, small-batch prototyping, and bulk production available.
| Topic | Customer Concern | Our Solution |
|---|---|---|
| Belt Slippage | Reduces efficiency and increases wear | Precision groove machining + proper friction coefficient |
| Noise & Vibration | Impacts comfort and accuracy | Balanced design (G6.3 class) + nylon damping materials |
| Corrosion | Shortens service life in humid environments | Galvanized or anodized coatings |
| Weight Reduction | Affects energy efficiency in rotating systems | Aluminum & composite materials for lightweight designs |
| Customization | Standard models not always fit | CAD-based design and sample prototyping support |
Q1: What types of belts are compatible with your pulleys?
We manufacture pulleys for V-belts, multi-rib belts, and flat belts, and can customize groove profiles for timing belts if needed.
Q2: What materials do you recommend for high-load applications?
Ductile iron and 40Cr steel provide superior strength and long fatigue life for heavy-duty environments.
Yes — we accept CAD drawings, 3D models, or physical samples for custom machining.
Q4: How do you ensure pulley balance?
Each pulley is dynamically balanced to G6.3 or higher standard for smooth high-speed operation.
Prototype lead time: 5–7 days; mass production: 10–20 days depending on size. MOQ as low as 10 pcs.
Q6: Do you supply matching belts or hubs?
We can provide matching components or recommend compatible brands for a complete system solution.
Q7: What industries use Belt Pulleys the most?
HVAC, conveyors, packaging machinery, agricultural drives, and machine tool transmissions.
ISO 9001:2015 Quality Management System
RoHS Compliance (Lead-free & Eco-Friendly Process)
Material Certificates (Steel / Aluminum / Nylon)
Dynamic Balance & Noise Testing Reports Available
Looking for a reliable Belt Pulley manufacturer to support your machinery projects?
Upload your drawing or select a standard size — our engineers will provide you with a free quotation within 24 hours.
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Fast Response | Engineering Support | Global Delivery
