Gear accuracy: KHK W 002: Grade 1 Tooth surface hardness Surface treatment: None Pressure angle: 17°30' Tooth surface finish: None Tooth cutting reference surface: Hole (H7) Heat treatment: None Additional workability: Possible Module: 4 Number of teeth: 40 Hole diameter (mm): φ20 Tooth profile: Ordinary teeth Shape : HB Tooth width (mm): 35 Number of rows: 1 Total length (mm): 55 Boss diameter (mm): φ75 Boss length (mm): 20 Lead angle Tooth tip circle diameter (φ): 172 Hole length: 172 Tooth width b (mm): 35 Tooth twist direction and number of rows (mm): R 1 Twist方向:r 标准圆直径D(mm):160
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