Can deep groove ball bearings be used in place of angular contact ball bearings?
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As mentioned by a previous netizen, it makes me think that in the design of ordinary horizontal centrifugal pumps, the bearing housing at the front end (the impeller side) is equipped with a NU-type roller bearing, while at the rear end (the motor side) there are angular contact ball bearings installed in pairs. However, in practice, I have often seen deep groove ball bearings being used instead. I would like to ask whether the angular contact ball bearings at the rear end can be replaced with deep groove ball bearings, as generally the external dimensions of angular contact ball bearings and deep groove ball bearings are the same, and their axial and radial load capacities are also quite similar
It is acceptable when the axial load is low; replacement is not recommended when the axial load is high. Practice is the sole criterion for testing truth; only by trying it out can one know whether it works or not. Because the design is based on theoretical calculations.
The Zeus pump uses deep groove ball bearings, while the 525 uses angular contact ball bearings; the choice depends mainly on the axial force.
Rolling bearings for centrifugal pumps and their new technologies http://www.docin.com/p-855050412.html
After all, the requirements for installing angular contact bearings are much higher than those for installing deep groove ball bearings
Deep groove balls and angular contact bearings: “Are the axial and radial loads more or less the same?” ? It’s impossible~~~~~~~~~
Check: 6318 – dynamic load of 14.5 tons, static load of 11.0 tons; 7318B – dynamic load of 15.9 tons, static load of 13.8 tons. Those who want to upload pictures cannot do so~~
Is it possible to find out the axial load capacity of 7318BDB? 7XXX angular contact bearings are mostly used in pairs... The bidirectional axial load-carrying capacity of a single bearing is not high~~~ I’m sorry; it’s just experience speaking here.....
The angular contact bearings at the rear end are used to bear axial forces, while the NU series bearings at the impeller end are designed for easy installation and removal.
The 7318B DB bearings are installed in pairs, with a load capacity of 25.9 tons under dynamic conditions and 27.6 tons under static conditions. I understand what you mean – angular contact bearings are generally installed in pairs. But when using bearings with a \"7\" shape, even if deep groove ball bearings are used, two bearings are still required. I simply assumed that the load-carrying capacity of deep groove ball bearings is twice that of other types of bearings
Yes, I’m trying to find out whether it’s possible to replace the back-end angular contact bearings with deep groove ball bearings. First, the external dimensions of the two types are the same; moreover, I think deep groove ball bearings require fewer installation requirements