1.Belt Drive,122RU24, 2.Textile machinery belt, 3.Rubber timing belts, 4.gates timing belt, 5.pu timing belt Auto timing belt: MODELPitchTOOTH HEIGHTBELT THICHNESSZA9.5251.914.1ZB9.5251.914.1ZH9.5253.55.2YH83.55.2ZR9.5253.25.7YS825.7ZS9.5253.535.7YA82.955.2ZAS9.5252.324.62ZBS9.5252.765.06S8M YU83.055.35FS9.5253.055.35MY83.065.2MR9.5253.545.6RU9.5253.415.4ZLB9.5252.75.05 auto timing belt