KHK Screw Gear SN4-13R SN4-13R 1 piece

Catalogue number: SN4-13R Features: ●A popular type of screw gear. ●The tooth surface can be hardened by induction hardening. Applications: ●Power transmission gears. Specifications: ●Module: 4 ●Number of teeth: 13 ●Reference circle diameter (mm): φ73.54 ●Tooth width (mm): 30 ●Hole diameter (mm): φ20 ●Total length (mm): 50 ●Twist direction: R ●Shape: S1 ●Boss diameter (mm): φ60 ●Tooth tip circle diameter (mm): φ81.5391 ●Boss length (mm): 20 ●Gear precision: JIS B1702-1: 1998: Grade 9 ●Tooth shape: Straight teeth ●Pressure angle: 20° ●Heat treatment: None ●Surface treatment: Blackening ●Tooth surface finish: Cutting ●Gear reference surface: Hole (H7) ●Twist angle: 45° ●Additional machining possible: Yes Material/Finish: ●S45C Note: ●This is a single item, not a set.