Quote:
Originally Posted by Foldbak
Aside from repacking by hand, I put 1 pump into them once a year. So far no problems. It also depends on the grease you're using. Synthetic lasts longer.
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If you are only adding a single pump of grease yearly, you are never getting new grease to the outer bearing, unless you started with a full hub of grease. New grease enters the zerk fitting and travels to the inner bearing and then goes toward the outer bearing, but if there is no grease in the hub, that grease will never get to the outer bearing until the hub is full.