EZ-Lube or Bearing Buddy - Need to Grease

[Firefight1981]

I am new to boating and also trailer maintenance.
By looking at the images, are these EZ-Lube or Bearing Buddy bearings?

Also, I notice the grease is gray colored. I want to add new grease.I have watched many videos and some people use a red grease, some use gray colored grease, etc... I want to use the best grease possible.
I know you should not mix grease. But if I keep adding new grease until the I no longer see old grease color, shouldn't that be fine?

And why is there a grease fitting by the trailer brake?

Thank you for any help and suggestions!!

 

[GA_Boater]

UFP style EZ Lubes. Don't mix grease unless you know absolutely that all you use is compatible. The only way to ensure no mixing is to remove, clean out the old from the bearings and hub, repack and then use the Zerk fitting to fill the hub. You can use the Zerk to pump gallons of grease and the bearings will still have the old stuff in the nooks and crannies.

That isn't a grease fitting on the brake cylinder, it's a brake bleeder.

 

[alldodge]

And why is there a grease fitting by the trailer brake?

As GA said do NOT put grease in there :nono:

EZ-lube pumps grease from the rear and out the front, Bearing Buddies only pumps grease in the front

EZ will push water which may have gotten in behind the rear seal and out the front

Buddies will nly push grease in the front, so if water is in the rear it will stay there

 

[mike_i]

You should not have to keep pumping grease into bearing buddies, you'll blow out the seal and no you won't end up replacing all of the grease. If the trailer is new to you with unknown maintenance history it would be wise the take everything apart to inspect/replace all of the components. Then when you reassemble everything you can use fresh grease and stick with whatever grease you decide to use. Yes you can mix different greases, color doesn't matter, but you should look at a grease compatibility chart to verify the base components are compatible, but it is better to stick with one type of grease. I agree with GA Boater, that's not a grease fitting on the brake cylinder, it is a brake bleeder.