If you just repack the bearings, it's very important to use the same base of grease currently in use. If you change the grease base, the hubs, bearings, seals and spindles need to be completely cleaned of the old grease.
mixed grease bases will 'fight' each other. Improper lubrication will result.
I pull my wheels at least once a year for one reason or another. The first time I did that with this trailer, I found the one of the brakes full of grease from the ez lube hub. I have no trust in them and who needs a pound of grease in the axle anyway.
The Manufacturer says to inspect once a year. I will do my bearings by hand at that point. The brakes get cleaned up and inspected. I get annal about the tires and suspension. I put on over 4,000 miles a year and do not want problems on the road.
As far as I'm concerned, those bearing buddies/ez lube should be left to boat trailers. That's just me. Each to their own.
Don't use bearing buddies, they will blow the rear seals out and grease will get on your brakes.
White Lithium wheel bearing grease here.
X2 -- I've seen the results.
X3. Even though I was very careful in spinning the wheel and using very little pressure, it still went past the seals.
It's a great idea but they don't work.
If you pump them past full, where do you think the grease is going to go? You can't just blindly keep adding grease. They aren't magic.
If you are using a bearing buddy you are supposed to watch the springloaded plate and make sure you don't fully compress the spring. If you are using the drilled spindle (I forget the. Al-Ko trade name) you remove the spindle dust seal cap and pump grease through the zerk on the spindle. Excess grease come back out through the outer wheel bearing and all over your hand holding the hose on the zerk fitting indicating it is time to stop pumping. If you are getting grease on the shoes you probably have the wrong grease seals, they are a special double lip seal.