Description
This SPC3/SPC4 400-1000mm v-belt pulley is a high-performance extreme heavy-duty power transmission component, specifically designed for large industrial motors, stone crushers, mining equipment, port conveyors, and other heavy-load mechanical systems.
Manufactured from premium grade high-strength grey cast iron (HT250), it features a reinforced structure with precision lightening holes, which effectively reduce rotational inertia while maintaining superior strength, rigidity, and load-bearing capacity, ensuring stable operation under extreme heavy loads and continuous working conditions. The precision-machined SPC grooves (3 grooves for SPC3, 4 grooves for SPC4) perfectly match standard SPC section v-belts, minimizing belt slippage, reducing energy loss, and extending belt service life.
Each pulley is equipped with a standard bore with keyway and set screw hole for easy installation and secure locking on the motor shaft. Available in raw cast iron finish, or with anti-corrosion painting for enhanced rust protection in harsh environments. This series covers 400mm, 500mm, 630mm, 800mm, 1000mm standard pitch diameters, and supports custom bore sizes, keyways, and finishes to meet specific application requirements