1. High operation efficiency, durable, long service time, stable performance.2. Stable structure, high concentricity, accurate tooth pitch, compact installation.3. Suitable for mass production, such as machine tools and other medium-speed and medium-load transmission gear.Specification:Name: 06B Precision Industrial Drive Sprocket WheelType: Sprocket with StepMaterial: 45# SteelTooth Surface Treatment: High Frequency Quenching and Tempering of TeethTooth Surface Hardness: HRC40-50Pitch: 9.525mmNumber of teeth: 17 18 19 20 TeethKeyway Bore: 12mm (keyway 4mm),14/15/16/17mm (keyway 5mm),18/19/20/22mm (keyway 6mm),24/25/28/30mm (keyway 8mm)Application: Used in Various Mechanical Transmission PartsFeatures:1.Sprocket material is high quality 45 steel, teeth high frequency quenching,2.Strong resistance to oxidation.Note:1.Sprocket dimensions (such as bore, total thickness, step outer diameter, etc.) may vary slightly due to batch differences, and specific parameters prevail in kind.2.Screws and key pins are purchased separately.