Grease 7000# axles

PretendFarmer

Well-known Member
I greased my trailer axle hubs but I have no idea if it's enough grease or not. Nothing moved. I put about 7 pumps or less. Less if it was hard to squeeze the handle on the grease gun. Is there some way to know if I put enough in ?
Sorry if it's a stupid question, none of my trailers before this one had a zerk fitting behind that rubber cap.
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So I found the instructions for it online. They are Dexter EZ Lube. Aparently the grease will be pumped in through the zerk and eventually come back out around. I will see grease so it looks like I need more.
 
Those are also known as "bearing buddies". Used commonly on boat trailers. Most likely not a good idea for a couple of reasons...
First, they over-lube the bearings - that is they let you displace ALL of the air space in the hub. Grease expands when it warms up and pushes out.
Second, it will blow out the seal on the backside of the hub, allowing road dirt to enter and destroy the bearing.
Third, it encourages you to never take the hub apart to clean and inspect the condition of the bearings.
I see a good many boat trailers on the side of the road with failed bearings. Personally, I would take them apart and pack them the old fashioned way.
 
No, bearing buddies are completely different.

The EZ-lube axles have a passage through the spindle that pushes grease out BEHIND the bearings. As you pump, the new grease shoves the old grease out towards you.

Bearing buddies are just covers that put grease IN FRONT of the bearings. They push grease from the outside in, where it has no place to go except through the rear dust seal and into your brake drum.
 

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