NEW MARTIN BORED TO SIZE SPROCKET, Number of teeth: 12; Caliper diameter: 1.6199 in; Bore diameter: 0.6250 in; Tooth width: 0.284 in; Length through bore: 0.8750 in; Hardened teeth: Non-Hardened Teeth; Outside diameter: 2.1660 in; Hub diameter: 1-9/16 in; Chain / sprocket type: Standard Roller Chain; Keyway size: 3/16 x 3/32 in; Chain number & pitch: 40 / 1/2 in; Storage dimension height: 15/16 in; Bore type: Bored to Size; Storage dimension length: 2.5625 in; Number of strands across: 1; Storage dimension width: 2.5625 in; Material: Steel; Surface treatment: Protective Coating; Number of hubs: 1; Weight: 0.4 lbs; Pitch type: Single; Manufacturer upc number: 697950003702; Pitch diameter: 1.9319 in; P/N 40BS12 5/8 At Interscope we know that with today's challenges, equipment maintenance and replacement can be costly; however we have a solution. Through our partnerships and program, we have access to an extensive inventory of new surplus and used components and assemblies that can not only deliver a significant cost savings, but also reduce lead time. We have a complete machine shop and manufacturing, fabrication, and assembly capabilities. We can rebuild assemblies, complete processing lines and other capital equipment at a substantially lower cost than new. In addition, we are always looking to purchase surplus and liquidated equipment. Let us bid on the equipment that you no longer want and/or need.