Gear accuracy: equivalent to JIS B 1702-1 N8 class Tooth surface hardness: (187HB or less) Tooth profile: Ordinate teeth Surface treatment: None Pressure angle: 20° Tooth surface finish: Cutting Tooth cutting reference surface: Hole (H7) Heat treatment: None Twist angle: Additional workability: None Number of teeth: 40 Shape: S5K Standard circle diameter (mm): 160 Tooth width (mm): 40 Hole diameter (mm): 50 Module: 4 Tooth tip circle diameter: 168 Total length (mm): 40 Key groove: 14×3.8 Tap Screw hole位置
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