Customized Short needle roller introduces the installation method of needle roller bearings

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2022-07-17

Do you know the installation method of needle roller bearings? Let's follow the customized Short needle roller editor for a brief understanding!
1. The installation of full complement needle roller bearings is generally carried out with an auxiliary sleeve. The auxiliary roller or auxiliary sleeve holds the needle roller to prevent the needle roller from falling out. The journal lifts up the needle roller with its own chamfer. As the needle roller bearing slowly moves inward on the journal, the auxiliary roller or auxiliary sleeve The cartridge is slowly withdrawn until it is installed in the working position. The outer diameter of the auxiliary roller and auxiliary sleeve should be 0.1-0.3mm smaller than the shaft diameter.
2. The needle roller bearing can also be installed in this way, that is, apply a thin layer of lubricating oil to the outer diameter of the auxiliary sleeve, put it into the outer ring of the bearing, so that the auxiliary sleeve and the outer ring of the bearing form an annular hole, and then install the needle roller in the annular hole . After the needle roller is installed, use the working shaft to push out the auxiliary sleeve.

customized Short needle roller
3. For needle roller bearings without inner ring or outer ring, when installing, first apply a thin layer of grease to the rolling surface of the shaft or housing hole, and then stick the needle rollers closely to the grease on the installation site in turn. . There should be a gap when pasting the last needle, and the size of the gap should be 0.5mm on the circumference of the needle bearing.
4. For needle roller bearings with only stamped outer ring, because the outer ring wall is very thin, do not hit and install with a hand hammer, but use a press to press in. Because the pressure is uneven when the hand hammer hits, it is easy to cause local deformation of the outer ring of the needle roller bearing.
The above is the customized short needle roller editor: a brief introduction to the knowledge about the installation method of needle roller bearings.