So i have a longboard and the bearing it came with died on me. Changing my bearings for the first time, i had no idea what i was doing until i look to youtube. I did as they said but something fell out. It was my speed ring. So i changed themas i was told and i put the ring back on before the bolt. I dont know what i did but now it spins very fast but slows down IMMENSLY within 10 seconds of a spin test and stops abruptly. What happened? (note: i skated in the rain... Stupid me)
Well if they are newer bearings you need to break them in what can take awhile depending on how much you skate... it can take a good day to a month or so just break them in and get them going... and from what I read online never use WD40 on them
Spin tests are useless, they give no indication of the bearing's performance under load. Bearings take a while to break in, especially Bones. Might take a few good days of riding. There should be a speed ring on either side of the wheel. Some Trucks do have a built in protrusion that does the same as a speed rind, so only the outer one is needed. Make sure you didn't tighten the axle nuts too much. There should be a little play in the wheels. Also, make sure your bearings are seated properly. Ditch the spacers as they often cause problems. If you skated in the rain with the new bearings, clean and re-lube them. . They might be salvageable, otherwise plan on buying another set of bearings.