Wheel bearings
When you are checking your wheel bearings what are you looking for specifically on the bearings to see if they need to be replaced or just repacked and how often do they usually need to be replaced if...
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Hold the bearing up to the sun light and look for sparkles in the grease. Sparkles indicate metal in the grease. If they pass that test, wash them, look them over carefully for defects, repack if good and reinstall. Tapered roller require a slight preload to keep the rollers in full contact with the races. If left loose, they hammer themselves to death. Ball bearings from the pre 60s did require a slight clearance and that ideology carried over to tapered rollers.
Roller bearings have run many thousands of miles with no preload but would have run longer if installed properly.
Seals also last longer if they don't have to tolerate movement between components.
If you ever have the opportunity to talk to a real bearing engineer, he will concur with my statement.
Richard
Roller bearings have run many thousands of miles with no preload but would have run longer if installed properly.
Seals also last longer if they don't have to tolerate movement between components.
If you ever have the opportunity to talk to a real bearing engineer, he will concur with my statement.
Richard
