hydraulic ,tracton and jackscrew

greenspun.com : LUSENET : Elevator Problem Discussion : One Thread

how hydraulic differs from geared/gareless traction,jackscrew,machineroom less elevators in general and how to reconise that

-- david clarke (purse10@zwallet.com), March 09, 2005


Hydraulic has huge amount of oil but geared has only a few litres of oil leaking from gearcase and over traction sheave; otherwise identical. Machineroom less has no Machineroom and rubber ropes.


-- Barry Finch (barryfin@telus.net), March 10, 2005.

To both the uninitiated and those in the know, this is a very telling answer!

-- Richard (flyboy@gmail.com), March 10, 2005.

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