{"product_id":"tritan-40bs21h-x-1-3-16-roller-chain-sprocket-finished-bore-with-keyway-ss-40-chain-size","title":"Tritan 40BS21H X 1 3\/16 - Roller Chain Sprocket, Finished Bore with Keyway \u0026 SS, 40 Chain Size, 21 # of Teeth","description":"\u003cp\u003eRoller Chain Sprocket, Bore Diameter 1 3\/16 in, For Chain Pitch 1\/2 in, For Number of Strands Single, Hub Type One Side, Material Steel, Maximum Bore Diameter 1 3\/16 in, Number of Teeth 21, Outside Diameter 3.62 in, Pitch Diameter 3.355 in, Bore Type Fixed, Chain Number 40, Finish Black Oxide, Hub Diameter 2 3\/4 in, Hub Projection 0.716 in, Includes Set Screws, Keyway Yes, Keyway Width 1\/4 in, Length through Bore 1 in, Number of Set Screws 2\u003c\/p\u003e","brand":"Tritan","offers":[{"title":"Default Title","offer_id":67616731660382,"sku":"40BS21H X 1 3\/16","price":23.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Z0u5yvmcpEx_45937510-42c3-4b00-812e-8206b46689dd.jpg?v=1791059327","url":"https:\/\/nationalboilersupply.com\/products\/tritan-40bs21h-x-1-3-16-roller-chain-sprocket-finished-bore-with-keyway-ss-40-chain-size","provider":"National Boiler Supply","version":"1.0","type":"link"}