Hot mounting of bearings (often called “ planting ”) is a particular bearing treatment technique, quite widespread in the industrial sector and in mechanical workshops, to facilitate the assembly or disassembly of mechanical components such as – precisely – bearings and parts. streaming.
But what does the heat shrink connection consist of? And what are the benefits of this specific method?
How coding works
Let's start by remembering that through the hot assembly of bearings we seek to favor the correct coupling of the bearings in their respective housings or shafts, through the use of heat: the use of heat actually allows the phenomenon of thermal expansion to be fed and, consequently, to be able to overcome the dimensional interference of two components, thus ultimately creating a better mechanical coupling, which will be more efficient and more robust.
When encoding is used
As can be understood from what we anticipated above, typing is generally used to make mechanical coupling of bearings with shafts or housings , with specific internal or external diameters that provide some interference. In fact, when the two components to be coupled are driven at the same temperature (the so-called “ambient temperature”), interference prevents correct mechanical assembly; If, as happens in hot fixing, the part where the pressing must be done is first heated, it will be easier to significantly enlarge the size of the hole, thus allowing the insertion or removal of the component which, once cooled, will return to its original size .
At what temperature does the shrink fit work?
Regarding the temperature to be used in the heat retractable adjustment operation, take into account that there is no “standard” target temperature, but that most planting initiatives are still carried out at temperatures between 90 and 250°C.
What advantages are gained from shrink fitting?
Finally, it is worth remembering how to use heat shrink fit , or induction heating as a technique for preheating components for hot assembly and disassembly operations, it is particularly used in those structures that wish to increase production speed and be able to develop positively the efficiency of its products and processes. In fact, the heat shrinkage activity allows you to benefit from higher and more efficient production speeds, better energy efficiency, and also the possibility of avoiding energy waste or unwanted overheating, concentrating heat only where necessary.
Furthermore, we would like to remind you that through shrink fitting it is possible to obtain better heating uniformity, better control of the entire process and also contribute positively to the remarkable longevity of mechanical components thanks to a correct assembly method. The shrink fit operation can be easily integrated into the company's production lines, it is a safe technique that can be carried out with space-saving devices.
To find out more, we recommend that you contact our technical assistance!
