KG S45C Spur Gear S2S 21B-2212 Shape B1 Module 2 Number of teeth 21 Tooth width 22mm Hole diameter Φ12mm S2S 21B-2212 1 pc

Catalog number: S2S 21B-2212 Features: ● Small precision gear. ● Spur gear that is easy to add additional processing. ● Part numbers ending in H indicate that the teeth have been induction hardened. Applications: ● Used for general industrial machinery, medical equipment, and food machinery. Specifications: ● Module: 2 ● Number of teeth: 21 ● Shape: B1 ● Reference circle diameter (mm): φ42 ● Tooth width (mm): 22 ● Hole diameter (mm): φ12 ● Tooth tip circle diameter: φ46 ● Overall length (mm): 32 ● Hub outer diameter (mm): φ36 ● Tooth tip circle diameter (mm): φ46 ● Hub length (mm): 10 ● Gear precision: JIS B 1702-1 (ISO) Grade 8 (High-quality hardened teeth: Grade 9) ● Tooth shape: Straight teeth ● Pressure angle: 20° Material/Finish: ● Carbon steel for machine construction (S45C)