KG S45C Spur Gear S1S 21A-0806F Module 1.0 Pressure angle 20 degrees (straight teeth) Number of teeth 21 Shape A1 S1S 21A-0806F 1 pc

Catalog number: S1S 21A-0806F Features: ● Small precision gear. ● Part numbers ending in H indicate that the teeth have been induction hardened. Applications: ● Used in general industrial machinery, medical equipment, and food machinery. Specifications: ● Module: 1 ● Number of teeth: 21 ● Shape: A1 ● Reference circle diameter (mm): φ21 ● Tooth width (mm): 8 ● Hole diameter (mm): φ6 ● Tooth tip circle diameter: φ23 ● Overall length (mm): 8 ● Tooth tip circle diameter (mm): φ23 ● Gear precision: JIS B 1702-1 (ISO) Grade 8 (Induction hardened teeth: Grade 9) ● Tooth shape: Straight teeth ● Pressure angle: 20° Material/Finish: ● S45C (Carbon steel for mechanical construction)