Martin 50BS12 1 1/8 Bored to Size Sprocket, 1.1250″ Bore

Martin 50BS12 1 1/8 Bored to Size Sprocket, 1.1250" Bore Number of Teeth 12 Bore Diameter 1.1250 in Length Through Bore 1.0000 in Outside Diameter 2.7080 in Chain / Sprocket Type Standard Roller Chain Bore Type Bored to Size Number of Strands Across 1 Material Steel Number of Hubs 1 Pitch Type Single Pitch Diameter 2.4148 in Caliper Diameter 2.0148 in Tooth Width 0.343 in Hardened Teeth Non-Hardened Teeth Hub Diameter 1.9844 in Keyway Size 1/4 x 1/8 in Storage Dimension Height 1.0625 in Storage Dimension Length 3.2500 in Storage Dimension Width 3.2500 in Surface Treatment Protective Coating Weight 0.62 lbs Manufacturer UPC Number 697950010045 Manufacturer Catalog Click here Chain Number & Pitch 50 / 5/8 in, 50 / 5/8 in