The OPTIBELT 21 T5 20-200ZA is a part of the OPTIBELT series of V-Belts, a high quality metal V-Belt intended for use in high-performance applications. This belt is designed specifically for use with high-power motor-driven machinery, and is ideal for applications that require a durable belt that is resistant to extreme temperatures, vibration and torque. It features a strong, solid build that includes five ribs that traverse the entire width of the belt. The belt also features two layers of thermolastic outer construction that keep its shape and prevent twisting. The cross-sectional size of this belt is T5, the inside length is 20-200mm and it has a Z-section profile A. This part of the OPTIBELT series is designed for higher loads, greater loads and increased speed ranges over the standard models.