It is not known who specifically invented the roller ball bearing. There are examples of their use by the ancient Egyptians. However, it is thought that they may have been invented before the wheel.
Check the lubrication order for your airplane, because not all airplanes use the same lubricants.
lithium grease or bearing grease
If you use the wrong weight motor oil in an engine, it is possible that you could destroy the engine due to lack of lubrication, either because the oil's viscosity is to low to provide adequate bearing separation, or because the oil's viscosity is to high to permit adequate lubrication. Use the manufacturer's recommended oil.
Lubrication.
No. cheese is a fat bearing product and will not break down in to fertilizer.
No lubrication is necessary under normal use.
Lubrication
for lubrication
A bearing cage is a structure which keeps the individual ball bearings or needle bearings or rollers that are part of the same "bearing" unit in approximately the correct position relative to each other. In must bearing utilising a cage, the cage does not come directly into contact with any individual ball, needle, roller, or race during use being separated by a film of grease or oil.
YES! I recommend it!
lube