Specification:Name: Spur Gear with StepModel: 1M (1 Module)Material: 45# SteelSurface Treatment: Teeth Hardening + Surface BlackeningNumber of Teeth: 35 TeethTooth Pitch: 3.14mmTooth Height: 10mmTotal Height: 18mmFixing screw: Feeding Machine Screw 2*M5Round Bore: 6/6.35/7/8/10/12/12.7/14/15/16/17mmKeyway Bore:8mm-keyway 3x1.4mm10mm-keyway 3x1.4mm10mm-keyway 4x1.8mm12mm-keyway 4x1.8mm14mm-keyway 5x2.3mm15mm-keyway 5x2.3mm16mm-keyway 5x2.3mm17mm-keyway 5x2.3mmBore Tolerance: 0-0.04mmShaft Hole: Machining CompletedNote:1. The contour records described above (in addition to making sure the accuracy of the internal hole) may possibly fluctuate slightly from batch to batch. No extra notice, please confer with the particular subject!2.The equipment material is 45# steel, and the interior holes are all positive tolerance 0-0.04mm. There could be a small number of burrs in stock, which is a standard phenomenon.Package :Packing : Plastic bag / Carton box.Quantity : According on your Choose!