About RSL series bearings

Want to ask: 1 What are the advantages and disadvantages of this non outer ring bearing compared with the ordinary bearing? 2. Is its stiffness larger or smaller than that of ordinary bearings of the same size? What causes it? Thank you for the SKF Bearing of rsl183008 Want to ask: 1 What are the advantages and disadvantages of this non outer ring bearing compared with the ordinary bearing?

2. Is its stiffness larger or smaller than that of ordinary bearings of the same size? What causes it?

Thank you very much

It can also be expanded for SKF Bearing of rsl183008