fj12ryder wrote:
... The first thing I did was check out how to use the EZ Lube hubs. I jacked up the trailer and, using a manual grease gun, pumped grease in while spinning the wheels, until fresh grease came out the front around the grease zerk. And that takes a lot of grease, which tells me they didn't put an overabundance of grease in those hubs.
The bearings were new and greased, I'm sure the maker did not feel the need to use the zerk. What you saw when you did use the zerk was probably the filling of the voids around the axle shaft. Now 'old school' would have also put some grease on that to discourage rust.