SPB Wedge Belts – High‑Power Industrial Drive Belts
SPB wedge belts are engineered for high‑power, high‑torque industrial drives where strength, stability and long service life are essential. With a robust 16.3 mm × 13 mm profile, SPB belts transmit significantly more power than SPZ and SPA belts, making them the preferred choice for demanding machinery, large pulley systems and continuous‑duty industrial applications.
Transpower Drives supplies the full SPB belt range with same‑day collection in Wellingborough and fast UK delivery to Northampton, Kettering, Corby and the wider Northamptonshire region. Ideal for heavy conveyors, crushers, large pumps, agricultural equipment and high‑load engineering drives.
Technical Specification – SPB Wedge Belts
- Profile: SPB (16.3 mm top width × 13 mm height)
- Construction: Reinforced polyester/aramid tensile cords
- Rubber compound: High‑temperature, oil‑resistant, anti‑abrasion
- Performance: Very high torque capacity, exceptional stability under load, reduced slip
- Standards: Fully compatible with DIN/ISO SPB pulleys
- Lengths: Full range available (Li, La, Lw)
- Operating conditions: Designed for heavy‑duty, high‑load, continuous‑operation drives
Why Choose SPB Wedge Belts?
SPB belts are built for serious industrial power transmission, offering a level of strength and durability that smaller profiles cannot match. Their wider, deeper cross‑section allows them to handle substantially higher loads, making them ideal for machinery that runs under constant stress or requires high starting torque.
Key advantages include:
- Higher power transmission than SPZ and SPA belts
- Superior load handling for heavy‑duty machinery
- Stable running on large‑diameter pulleys
- Long service life even in harsh industrial environments
- Reduced downtime thanks to strong tensile cords and heat‑resistant compounds
SPB belts are the go‑to choice for engineers who need maximum reliability and performance.
We’ve organised the SPB belt range into straightforward child groups so you can move through the sizes quickly and find the exact belt length without scrolling through long lists.














