● Available Number of teeth (Z): 15 Tooth / 20 Tooth / 25 Tooth / 30 Tooth. ● Tooth surface Hardness: Hard (>350HBW). - Pitch (P) = 1.57mm. - Pitch (P) = 2.51mm. - Pitch (P) = 3.14mm. - Pitch (P) = 4.71mm.
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