ae Large Spoke-Type Cast Iron V-Belt Pulley

• Heavy-Duty Cast Iron Construction: Manufactured from high-grade gray cast iron (HT200/HT250), providing superior tensile strength and vibration damping under continuous high-load operation.
• Precision-Machined Grooves: CNC-machined groove profiles ensure perfect V-belt engagement, reducing slippage, belt wear, and power loss across A/B/C/D/SP belt series.
• Dynamic Balance Design: The optimized spoke-style structure reduces rotational mass while maintaining structural rigidity, minimizing runout and extending bearing life at high RPMs.
• Anti-Corrosion Protection: Factory-applied red oxide primer coating prevents rust formation and extends service life in humid, dusty, or harsh industrial environments.
• Customization Ready: Flexible options for outer diameter (OD), bore size, keyway dimensions, number of grooves, and surface treatments to meet OEM/ODM requirements.

* Exact specifications depend on selected model and custom requirements. Contact us for a detailed datasheet.

V-belt pulleys transmit rotational power through frictional contact between the belt and pulley grooves. The V-shape wedges the belt deeper into the groove under load, multiplying traction and enabling high-torque transfer with minimal slippage.

1. Sand Casting: High-purity molten iron is poured into precision molds to form the spoke-type blank structure.
2. Heat Treatment & Aging: Stress-relief annealing improves dimensional stability and eliminates internal casting stresses.
3. CNC Machining: Automated turning and boring machines achieve tight tolerances on OD, groove angles, and bore dimensions.
4. Dynamic Balancing: Each pulley undergoes spin testing to ensure ISO 1940 G6.3 (or better) balance grade, reducing vibration.
5. Surface Coating: Protective primer is applied uniformly to prevent corrosion during storage and operation.

• Industrial Manufacturing: Drives conveyor belts, mixers, blowers, and assembly line equipment in factories.
• Agricultural Machinery: Powers harvesters, irrigation pumps, grain dryers, and tractor attachments.
• Mining & Construction: Supports crushers, vibrating screens, and heavy-duty material handling systems.
• HVAC & Water Treatment: Used in large fans, centrifugal pumps, and compressor units for reliable continuous operation.

We provide tailored drive system solutions based on your operational requirements:

• Heavy Load Optimization: Multi-groove pulleys paired with synchronous belts for mining and steel mill applications.
• Space-Constrained Installations: Compact narrow-section (SPA/SPB) pulleys for tight machinery layouts.
• High-Speed Drive Systems: Precision-balanced pulleys rated for elevated RPMs in HVAC and processing plants.
• Corrosive Environment Packages: Enhanced coating options (epoxy, galvanized) for chemical and marine applications.

1. Verify shaft diameter and keyway match the pulley bore specifications before installation.
2. Clean the shaft surface and apply a thin layer of anti-seize compound to prevent galling.
3. Slide the pulley onto the shaft, aligning the keyway and securing it with the appropriate set screws or locking assembly.
4. Install V-belts using proper tensioning tools. Avoid prying belts over the pulley rim to prevent groove damage.
5. Check belt tension and pulley alignment (parallelism & angular offset) before starting the motor.

• Regular Inspection: Check for belt wear, cracking, or glazing every 500 operating hours.
• Tension Adjustment: Re-tension belts after the initial 24-hour run-in period and every 3 months thereafter.
• Lubrication: Apply grease to bearing housings per manufacturer guidelines; keep pulley grooves clean and oil-free.
• Surface Protection: Touch up chipped primer with anti-rust paint to maintain corrosion resistance.

• Always install OSHA-compliant belt guards to prevent contact with moving pulleys and belts.
• Lock out and tag out (LOTO) power sources before performing installation, tensioning, or maintenance.
• Do not exceed the rated RPM or load capacity specified for the pulley size and material grade.
• Replace severely worn, cracked, or unbalanced pulleys immediately to avoid catastrophic drive failure.

• Quality Warranty: All pulleys are covered by a standard warranty against manufacturing defects. Warranty period subject to agreed terms.
• Technical Support: Engineering assistance available for drive system design, pulley selection, and troubleshooting.
• Replacement & Returns: Defective items will be replaced or refunded per our standard return policy. Contact our support team for claims.

• Standard Packaging: Each pulley is wrapped in anti-rust paper and placed in a sturdy wooden crate or plywood case for export.
• Custom Packaging: Palletization, vacuum sealing, or branded packaging available upon request.
• Shipping Options: Dispatch via sea freight, air freight, or express courier depending on order urgency and destination.
• Lead Time: Standard sizes ship within a few business days; custom castings require additional production time based on quantity.

Cast iron is highly recyclable, and our manufacturing process prioritizes energy-efficient melting and responsible scrap management. Long service life and replaceable V-belt components reduce overall equipment waste. We comply with applicable environmental standards for emissions and material handling in our foundry operations.