Madis said:
There are wedges in the middle of the core, right? If not, the bearings will slip through the core.
Nah, it's not there. But not because I forgot them. Im still not an expert when it comes to metal machining, so I thought that the middle hole would be drilled, which wouldn't allow making a more complicated shape of it. The lips are easy to make though, and will be featured in the release version. As for those wheels, the bearings sit really tight, and Ive been told about some special glue thing that will make the bearings not slip out for sure.
DerekLowndes said:
I was just thinking... Wont the urethane come off easy as now? Since theres like no real thing keeping it on just 2 side things?
Consider that urethane on Micro metal cores is put on a completely FLAT surface. The cores on those wheels break, but I haven't heard about them actually coming off the rim. This doesn't happen because the wheel is coated with a primer before the actual polyurethane is being put on. The primer creates a chemical bond which prevents the urethane from coming off. The '2 side things' will make the urethane protected against sideways impact even better than in case of the Micro wheels.
Brian Boston said:
Yeah, micro metal cores either mess your bearings up, or the bearing messed up the wheel. Mine make a horrible clicking noise because the spot where the bearing sits got deformed.
Ehh. This is a problem that needs to be solved. But it will be hard, considering that in sports like rollerblading or skateboarding, where the bearings need to be resistant to severe impact, the wheels are small and they're fully made of polyurethane. When you land, the whole wheel compresses, which makes the bearings take less impact. 100mm wheels are used only in recreational or speed skating, where there is no issue of impact. So, as we have nothing to refer to, this problem will need a lot of research in the future. Maybe some diffrent material than aluminium will be better to make the rims?