The OPTIBELT 21 T5 42-200ZA is an adjustable timing belt designed for use in power transmission and various industrial applications. It is made of durable synthetic rubber with multi-layered construction, providing superior tensile strength, dimensional stability and resistance to oil, heat, ozone and abrasive wear. It has teeth shaped in a trapezoidal profile with rounded edges for smoother operation and enhanced grip. The timing belt has a length of 42 inches and width of 0.200 inches, making it compatible with pulleys with a profile of 5 mm in width. It is especially suited for linear motion and has a temperature range of -40 to 80 degree Celsius. The 21 T5 42-200ZA features an enhanced multi-layer tensile member for superior resistance to elongation and excellent performance over long service life.