Timing Belt, Single-Sided, Urethane/Polyester, 0.0816" Pitch, 0.1875" Width, 12.2400" Length, 150 Teeth Synchronous belt for applications with a specific motion sequence or indexing Urethane/polyester for resistance to corrosion and abrasion Nylon tooth facing for resistance to wear Smooth engagement of belt and pulley for resistance to noise and vibration