20BTB57
MARTIN SPROCKET & GR 20BTB57
Roller Chain Sprocket; 20B-1 Chain; 57 Teeth; 1 Row of Teeth; No Hardened Teeth; 594.512MM Outside Diameter; 576.35MM Pitch Diameter; B-Hub One Side; Bushed Mount; 3020 Bushing; 31.75MM Chain Pitch; ISO Roller Chain; Keyway; Steel Material
制造商部件号
20BTB57
BDI部件号
617112
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