LiftMaster 8550

Most low- to mid-range garage openers use a chain drive. It’s a design that makes for an affordable product, but they can be jerky, noisy and a bit unpleasant, even if perfectly functional.

Belt-driven openers are in principle very similar to chain-driven openers, but they are quieter and smoother. Think of it as a refinement of the chain-drive principle. That’s the main selling point of a product like the LiftMaster 8550 Elite Series opener. It’s targeted at a more premium segment ...

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Liftmaster 8500

Most of the garage door openers we see are ceiling-mounted and use either a belt-drive or chain- drive. Another less common type of opener uses something called a “jackshaft” drive. This is a type of drive that works with doors that have a front-mount torsion spring. The opener is mounted on the wall adjacent to the shaft that rolls up the door and drives it directly.

The LiftMaster 8500 Elite Series opener is just such a product and we’ll have a ...

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