The Optibelt XPZ1287XEP Super XE Power V-belt is a high-performance, maintenance-free belt designed for demanding drives with very small pulley diameters and high speeds. Featuring an XPZ profile, it has an effective length (Ld) of 1287 mm, an inner length (Li) of 1275 mm, and an outer length (La) of 1297 mm. With a top width of 9.7 mm and a height of 8 mm, this durable rubber V-belt is resistant to oil, heat, and dust, making it suitable for tropical climates and drives with reverse bending. It is also statically conductive and can be used in sets without additional measurement.