Martin 40BS11 3/4 Bored to Size Sprocket - and 50 similar items

Martin 40BS11 3/4 Bored to Size Sprocket - 40 / 1/2 " Bored to Size 3/4" New , no box. This was stored out of the box on a shelf and may show some rust etc. Been cleaned up a bit with a wire brush. Specifications Material Steel Hub Outside Diameter 1.375 in. Chain Number 40 Length thru Bore 0.875 in. Chain Pitch 0.500 in. Hub Recessed For Chain Clearance Yes Number of Chain Rows 1 Construction Detail Solid Number of Teeth 11 Bore Type Bored To Size Outside Diameter 2.003 in. Finished Bore Size 0.750 in. Pitch Diameter 1.775 in. Key Way Size 3/16x3/32 in. Single Strand Tooth Thickness 0.284 in. Set Screw Size 1/4-20X1/4 in. Hardened Teeth No Set Screw Location (2) Set Screws (1) Over Kw And (1) At 90 Hub Configuration B Storage Dimension Length 2.563 in. Weight 0.25 lbs. Storage Dimension Width 2.563 in