About bearings
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It’s a bearing from a certain manufacturer, model qj3145n2ma. In this model, the “N2” designation indicates that there are two positioning grooves on the side of the outer ring, as shown in the diagram below. It is a four-point contact bearing; so, should those two grooves at 180 degrees apart be used for fixation?
It’s on the screw compressor, one of the machines in the factory. I noticed that the bearing of the male rotor has grooves, while the bearing of the female rotor doesn’t. The problem is that according to what people on the forums say, something should be used to hold it in place, but after searching for a long time I couldn’t find anything that could be used for that purpose – so what should be used?
This isn’t very clear. This isn’t very clear.
First, figure out what the purpose of his slot is
I checked this; it’s called a positioning groove, which is used to hold the outer ring in place. But there’s nothing on the cover that holds it in place
Fixed with 4-5mm small pins
This should be fixed to the bearing housing, right?
The pin hole in the outer ring of the bearing is used to prevent rotation; the pin is installed on the retaining ring between the two bearing rings, with 1-2 MM extending from each end, which is sufficient to serve as a positioning element.