The sprockets ALPHAbelt S.2113 are produced of the material Acetal (POM), a material with big resistance to friction.
They are produced with: 10 teeth (Ζ10, Φ34 mm.) for square shaft  20x20 mm.

                                    20 teeth (Ζ20, Φ74 mm.) for square shaft 30x30 mm.

                                    30 teeth (Ζ30, Φ114 mm.) for square shaft 40x40 mm. and

                                    36 teeth (Ζ36, Φ139 mm) for square shaft 40x40 mm.

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