ETP Hub-Shaft Connections - ETP - #3

Text version of the page

Pascal discovered the principle We put it to work The scientist Blaise Pascal formulated the principle of pressure propagation in liquids many years ago: ”A liquid confined in a vessel which is subjected to pressure distributes the pressure uniformly upon the walls of the vessel. ” ETP has explored the many positive qualities in this principle, developed it further and applied it to the hub-shaft connections. ”A hydraulic pressure medium confined in a double-walled sleeve is pressurized (with screws/pistons or with an external pump). The pressure is distributed evenly along and around hub/shaft. The double-walled sleeve expands uniformly and gives an even contact pressure against shaft and hub ”. The ETP-Principle gives because of the hydraulic principle: compact design, fast mounting, easy to position, good runout, does not damage the contact surfaces and is easy to dismantle. These qualities are important today and will be even more important in the future. With increasing requirements on down sizing the machines, better runout/balance, increased machine speeds, shorter downtime for service and increased precision, the ETP hydraulic hub-shaft connections are choosen for more and more designs. 3