Plummit
Well Known Member
I need to replace this sheave that lifts my hangar door via a hydraulic ram. There are 4 cables that go around the sheave, and the door is a one-piece, metal frame with corrugated steel (read heavy). I can use 6061T6 for the replacement. Opinions on the strength of that alloy? The sheave is 4" diameter with a 1" steel pin and bronze bushings. The broken pin seized in the bushings and was spinning until it (probably after a few years) wore down to ΒΌ" diameter then failed.
![oDq.jpg](/community/proxy.php?image=http%3A%2F%2Fhalie.com%2Fscale%2F20%2FoDq.jpg&hash=ee35e66f6644bc67109bc331a1b2b52f)
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