KHK Spur Gear SS2.5-21 Regular Teeth SS2.5-21 1 pc

Catalog number: SS2.5-21 Features: ●A wide range of modules and numbers of teeth are available, making it low-cost and highly versatile. ●A finished product that does not require any additional processing. Applications: ●Power transmission gears. Specifications: ●Module: 2.5 ●Number of teeth: 21 ●Shape: S1 ●Pitch diameter (mm): φ52.5 ●Tooth width (mm): 25 ●Hole diameter (mm): φ15 ●Tooth tip circle diameter: 57.5 ●Total length (mm): 37 ●Boss diameter (mm): φ42 ●Tooth tip circle diameter (mm): φ57.5 ●Boss length (mm): 12 ●Gear precision: JIS B1702-1N8 grade ●Tooth form: Straight teeth ●Pressure angle: 20° ●Heat treatment: None ●Tooth surface hardness: (194HB or less) ●Surface treatment: Blackening ●Tooth surface finish: Cutting ●Gear cutting reference surface: Hole (H7) ●Twist angle: - ●Can additional processing be done: Yes Material/Finish: ●S45C Note: ●This is sold as a single piece and not a set.