{"product_id":"liftmaster-71-1541b48lgh","title":"LiftMaster 71-1541B48LGH Drive Sprocket — 32 Teeth, #41 Chain, 1-Inch Bore","description":"\u003cp\u003e\u003cstrong\u003eThe LiftMaster 71-1541B48LGH is a 48-tooth drive sprocket for #41 roller chain, with a 1-inch bore and a 1\/4-inch keyway. Select it for equipment whose approved parts list calls for this exact configuration. The 41B48 designation identifies the chain family and tooth count; it does not establish universal operator compatibility. Match the complete service reference, shaft interface and chain alignment before ordering, and do not substitute a #50-chain sprocket because its bore or overall appearance looks similar.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eCompatibility — Models, Versions and Exclusions\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel or selection point\u003c\/th\u003e\n\u003cth\u003eCompatibility requirement\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDocumented exact-part applications\u003c\/td\u003e\n\u003ctd\u003eUse the equipment service drawing to confirm this complete reference.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e#41 drive chain\u003c\/td\u003e\n\u003ctd\u003eCorrect chain family; shaft fit, tooth count and hub geometry must also match.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e71-1550B32LGH\u003c\/td\u003e\n\u003ctd\u003eA #50-chain sprocket with a similar part number; not interchangeable on a #41 drive.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther 1-inch shaft sprockets\u003c\/td\u003e\n\u003ctd\u003eMatching bore diameter alone does not establish compatible chain engagement or drive ratio.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eIdentify the Chain Family Before Comparing Shaft Dimensions\u003c\/h2\u003e\u003cp\u003eA sprocket must match both the chain and the shaft. If an old invoice only says 48-tooth sprocket, identify the actual chain family and complete service reference before reordering. The #41 and #50 designations are not alternate names for the same chain. Installing the wrong tooth profile can prevent proper engagement even when the bore slides onto the shaft.\u003c\/p\u003e\u003cp\u003eHave the technician inspect the shaft keyway, sprocket teeth, chain and mating drive components together. The new sprocket must occupy the correct chain line and have adequate hub clearance. A worn keyway or loose mounting can remain a problem after the sprocket is replaced. Do not change tooth count to alter operating speed during an ordinary service repair.\u003c\/p\u003e\u003ch2\u003eSpecifications and Product Identification\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer part number\u003c\/td\u003e\n\u003ctd\u003e71-1541B48LGH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSprocket designation\u003c\/td\u003e\n\u003ctd\u003e41B48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTooth count\u003c\/td\u003e\n\u003ctd\u003e48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChain family\u003c\/td\u003e\n\u003ctd\u003e#41 roller chain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBore diameter\u003c\/td\u003e\n\u003ctd\u003e1 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKeyway\u003c\/td\u003e\n\u003ctd\u003e1\/4 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRetention\u003c\/td\u003e\n\u003ctd\u003eManufacturer description specifies set screws; confirm supplied hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eBefore Ordering\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRecord the full equipment model and sprocket reference from its parts diagram.\u003c\/li\u003e\n\u003cli\u003eConfirm #41 chain, 48 teeth, a 1-inch bore and the 1\/4-inch keyway.\u003c\/li\u003e\n\u003cli\u003eCheck hub clearance, shaft condition and the required retention arrangement.\u003c\/li\u003e\n\u003cli\u003eInspect the chain and mating sprockets for wear and alignment problems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Contents and Separate Requirements\u003c\/h2\u003e\u003cp\u003eThis listing identifies the sprocket service item. A shaft, shaft key, chain, master link and every retention fastener are not promised as included. Confirm the current carton and order any separately required components for the repair. The correct chain length must be determined from the installed equipment; a stock length of replacement chain is not automatically the finished length needed.\u003c\/p\u003e\u003ch2 class=\"safety-warning\"\u003eSafety Warnings — Read Before Installation or Service\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWARNING: Exposed chain drives can entangle clothing or trap fingers and cause serious injury. Use a qualified door- or gate-systems technician.\u003c\/li\u003e\n\u003cli\u003eIsolate all applicable power and secure the moving equipment before removing a chain or sprocket.\u003c\/li\u003e\n\u003cli\u003eDo not enlarge the bore, improvise the shaft connection or substitute a different chain family to make a part fit.\u003c\/li\u003e\n\u003cli\u003eRestore guards and complete the equipment’s prescribed operating and safety tests before normal use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRelated Products and Important Differences\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/garage-doorparts.com\/products\/roller-chain-10-41-chain\"\u003e#41 roller chain, 10-foot length\u003c\/a\u003e — a matching chain-family option; determine the required installed length.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/garage-doorparts.com\/products\/master-link-41-chain\"\u003e#41 chain master link\u003c\/a\u003e — a separate connecting component for the appropriate #41 chain; not a #50 link.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs this for #41 or #50 chain?\u003c\/h3\u003e\u003cp\u003eThis is the #41-chain 41B48 sprocket. The similar 71-1550B32LGH belongs to the #50 family.\u003c\/p\u003e\u003ch3\u003eWill any 48-tooth sprocket work?\u003c\/h3\u003e\u003cp\u003eNo. Chain profile, bore, keyway, hub geometry and the approved drive arrangement must all match.\u003c\/p\u003e\u003ch3\u003eDoes the kit include new chain?\u003c\/h3\u003e\u003cp\u003eNew chain is not promised as included. Confirm the supplied contents and the separately required length.\u003c\/p\u003e\u003ch3\u003eShould I inspect the shaft when replacing it?\u003c\/h3\u003e\u003cp\u003eYes. A worn keyway, loose fit or misaligned shaft connection can undermine the replacement and requires correction.\u003c\/p\u003e\u003ch2\u003eNeed Help Confirming the Right Product?\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/garage-doorparts.com\/pages\/contact\"\u003eContact Garage-DoorParts.com before ordering\u003c\/a\u003e. Send the full equipment model, readable part labels and photographs of the installed assembly. Include the dimensions, electrical configuration or accessory details relevant to your project so the listing can be checked against the actual installation.\u003c\/p\u003e","brand":"LiftMaster","offers":[{"title":"Default Title","offer_id":60655785574686,"sku":"71-1541B48LGH","price":10000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/2781\/5710\/files\/71-1541b48lgh.png?v=1793139975","url":"https:\/\/garage-doorparts.com\/products\/liftmaster-71-1541b48lgh","provider":"garage-doorparts.com","version":"1.0","type":"link"}