Im looking at about 5ft/min. lift with about travel length 6ft. Looking at about 2-3 cycles a day.
Bushing is Graphite Bronze material, 8"ID and 8.25"OD the sliding surface polish will be chrome on the tube. the bushing will be automatically oiled/greased. the length of the busing is 3". 2 bushings separated in between like 19"
when will the bushing fail?
We have used similar bushings in the past on proto-type designs and have not had any problems as yet. Length of service has been 5 years and the environment is mildly abrasive, cotton fibers in the air. Cycle time for our customer is 20 seconds with a 22 inch travel. hope this helps.
Thanks for your answer! is there an equation to figuring out bushing lifespan? Or is this something i can do in simulation with solidworks?