A lubricant reduces friction in a bearing by forming a protective film between the moving parts. This film effectively separates the surfaces, preventing direct contact and reducing friction and wear. Additionally, the lubricant helps to dissipate heat generated during the operation of the bearing, further reducing friction.
You remove the wheel from axle then remove any clip holding the bearing and pop the entire bearing ( outer and inner race) out of the wheel. Take this bearing to a skate or bike shop to get an exact duplicate, or even to an industrial bearing shop to get abetter one.
you have to buy a bearing pusher tool to get it out i suggest the kryptonics one tool because each bit on it has a bearing pusher
Heat, lack of lubrication, contamination of the lubricant such as water or dirt,entering the bearing, or carrying a heavier load than the bearing was designed to handle.
Lack of lubricant or excessive heat or old age...
They are usually factory sealed with a lubricant sealed inside the pump.
in a skate park which all towns or cities should have atleast on skate park in a skate park which all towns or cities should have atleast on skate park in a skate park which all towns or cities should have atleast on skate park
both
Water based lubricant
Roller-skate, as a verb, should be hyphenated. Roller skate, as a noun, is not.
try bearing oil or skate wax and then sharpen the tip
pop it off, and put a new one in