{"product_id":"browning-1881218-finished-bore-sprocket-23-teeth","title":"Browning 1881218 Finished Bore Sprocket 23 Teeth","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1881218 is a finished bore sprocket designed for use with ANSI 50 roller chain at a 5\/8 inch pitch. Machined from steel, this sprocket features 23 teeth and a fixed bore diameter of 1-3\/16 inches, meaning the bore is already finished to size at the factory with no additional machining required. The outside diameter measures 4.92 inches. It is used in power transmission assemblies across industrial, commercial, and mechanical systems where roller chain drives transfer rotational motion between shafts. Installation is typically performed by millwrights, maintenance mechanics, or experienced power transmission technicians.\u003c\/p\u003e\n\u003cp\u003eThis sprocket is suited for roller chain drive applications in conveyor systems, packaging equipment, agricultural machinery, HVAC mechanical drives, and general industrial equipment. The 50-chain trade size is one of the most common ANSI chain sizes, making this sprocket a straightforward replacement or new-build component for a wide range of fixed-bore shaft drive setups. The 1-3\/16 inch bore is both the minimum and maximum bore diameter, so verify shaft diameter before ordering.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFinished bore at 1-3\/16 inches — no secondary machining required\u003c\/li\u003e\n  \u003cli\u003e23 teeth with 5\/8 inch chain pitch, compatible with ANSI 50 roller chain\u003c\/li\u003e\n  \u003cli\u003eOutside diameter of 4.92 inches\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability in industrial power transmission environments\u003c\/li\u003e\n  \u003cli\u003eSingle-piece factory finish suitable for drop-in shaft installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with ANSI 50 roller chain at 5\/8 inch pitch. Intended for shafts with a diameter of exactly 1-3\/16 inches. Verify chain trade size and shaft diameter before installation, as this is a fixed finished bore sprocket with no bore adjustment range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified millwright or mechanical technician. Always de-energize and lock out the drive system before removing or installing sprockets. Ensure the shaft is clean and free of burrs before pressing or sliding the sprocket into position. Align the sprocket with its mating component using a straightedge or laser alignment tool to minimize chain wear and lateral load on bearings.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSprocket Type\u003c\/strong\u003e: Finished Bore\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Teeth\u003c\/strong\u003e: 23\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain Pitch\u003c\/strong\u003e: 5\/8 inch (0.6250 inches decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain Trade Size\u003c\/strong\u003e: 50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 1-3\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 4.92 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.78 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31171900\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: BROWNING\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1881218\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51541459927346,"sku":"1881218","price":153.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8969b1f50b79bfe1994358d31844f670_650867ef-6556-48f9-84c9-a8f3ad083928.jpg?v=1785876751","url":"https:\/\/voomisupply.com\/products\/browning-1881218-finished-bore-sprocket-23-teeth","provider":"Voomi Supply","version":"1.0","type":"link"}