How do you clean bicycle bearings?

Hereof, what can I use to clean my bearings?

Clean all the old grease off thebearings,brake and spindle with solvent. Pop the old sealout with a pry baror even a screwdriver, then use solvent toclean upall the old grease. Dry with a rag or compressedair. Pack thebearings by mushing grease in between therollers untilthey're completely coated.

Similarly, can you use wd40 on bearings? It's important to use a silicone-basedlubricant.WD40 or others like it will dry outyourbearings and attract dust and dirt. It doesn'ttakemuch, and the excess will just spin out whenyoureplace your shields, pop your bearings back inyour wheelsand start shredding. Skate safe and enjoy yournew-foundspeed.”

Beside this, how do I know if my bike bearings are bad?

Here are some indicators of a worn wheel hub bearingorother wheel-end damage:

1. •
2. • Grinding when the vehicle is in motion.
3. • Knocking or clunking.
4. • Humming, rumbling or growling.
5. • Wheel vibration and/or wobble.
6. •
7. • Abnormal side pull when brakes are applied.
8. • Uneven rotor or brake pad wear.

Can you use rubbing alcohol to clean bearings?

Put the bearings in a container WITH ALIDand fill it to the brim with isopropyl alcohol. Capthecontainer and shake for 5 minutes. While you're waitingforthe alcohol to fully evaporate, you can take thetimeto clean the bearing covers with somepapertowels.