Sprocket Kit To Suit B&D, Firmamatic, BM4, Merlin, Easylift, Centurion

The B&D Control-A-Door 4 kit provides an excellent solution for those looking to tackle a sprocket breakage issue through a do-it-yourself approach.

One prevalent cause of sprocket failure is the utilisation of the smaller cog on the dual sprocket, which exerts excessive strain on the system in pursuit of a mere 1.5-second acceleration in the opening speed. This combined with insufficient lubrication can lead to premature wear and ultimately result in sprocket failure.

By opting for the B&D Control-A-Door 4 kit, you not only gain the means to address this problem yourself but also ensure a more reliable and enduring performance from your garage door system.