Problem with the bearing model? ? ? (Seeking advice from experts familiar with bearings)
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There are two bearing models, and I’m not sure if they are the same. Could everyone please help me figure this out? 23022DR+10 and 23022DR+5 – what do the letters at the end mean? Does anyone know? Does each manufacturer have its own standard for indicating bearing models? What do the letters at the end especially mean? Is there a unified standard? Could an expert please help answer this? Thank you.
This post was last edited by li*nji on 2015-9-12 at 14:29. Hello, if it’s a Luoyang bearing, we have used such markings in the past during maintenance; they indicate an increase in the outer diameter by 10 microns, which is intended for bearing housings where the outer ring used to rotate. If it’s an imported self-aligning roller bearing, it might be fitted using a tapered hole
The bearings on the reducer are imported components, as indicated in the drawings. The two bearings are of the same size; it’s just that the letters indicating them differ. Moreover, the specifications use two exclamation marks to mark these two bearing models, and I’m not sure what that means – it seems like there should be some difference between them.
Check with bearing manufacturers and look at their sample products – they’re definitely different
Different manufacturers use different coding methods; it is recommended that you consult the manufacturer regarding this – I really have never seen such a thing!
If the outer diameter is larger by a certain amount, you can use an outer diameter micrometer to measure the value
SKF ones can be found online, but there are none without the +10 suffix.
The final suffix sometimes indicates differences in heat treatment processes. It’s best to contact the technical engineer at the corresponding company directly. A detailed and correct answer will be provided!
Please send over the original materials for me to take a look!
Self-aligning roller bearings are generally used in pairs, so a specific indication definitely makes sense.