Stop in for a cup of coffee

Bodyperson said

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I put a thin coat inside the hub. Packing it would retain heat. Are you packing by hand or using the tool? I don’t trust the packing tool.

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I use the grease packing tool, lisle cup style. And pack a fair amount of grease into hub. If it gets hot enough to make grease liquify, there is enough to keep lubricant in bearings. But to date i have never seen hubs get that hot unless bearings have failed.
I disassembled a hub on an old 3 ton truck that had 300,000 ish miles on it, could still see the marks from the brush that applied grease in the hubs from factory. It was a water tanker,it saw lots of abuse. Takes a lot get grease to melting point.