Wedge Belt SPB4500-4750

The SPB 4500–4750 belt group represents some of the longest 16.3 mm × 13 mm wedge belts available for industrial power transmission. These ultra-long belts are used in machinery where exceptionally wide centre distances are required, or where the drive system spans large structural frames, offset shafts or multi-stage pulley arrangements.

SPB belts in this extreme pitch range are manufactured to ISO 4184 / DIN 7753 and use high-strength polyester tension cords combined with premium rubber compounds engineered for heat, oil and abrasion resistance. Their precision-ground sidewalls ensure stable pulley engagement, reduced slip and consistent torque delivery even under heavy or fluctuating loads.

These belt lengths are commonly used where machinery requires a strong, reliable drive system with enough span to accommodate very wide pulley spacing or oversized industrial frames. The SPB profile delivers excellent efficiency, long service life and stable running characteristics, even under high tension or continuous-duty operation.

This parent category includes all SPB belts with pitch lengths from 4500 mm to 4750 mm, each supplied on an individual product page for accurate selection. All belts are compatible with standard SPB pulleys and suitable for multi-belt matched-set drives.

Browse the full SPB 4500–4750 range below to find the correct belt for your machinery.