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Check grease levels at a glance with the blue auto-check ring. Stainless steel Bearing Buddies maintain light grease pressure inside the hub to protect your bearings, even when submerged, while the zerk fitting makes adding grease quick and easy.
Features:
Specs:
Replace your existing grease cap with a Bearing Buddy for an easy way to monitor and maintain the grease level in your axle hub. Use a grease gun to add grease through the zerk fitting. As the hub fills, the spring-loaded piston moves outward, raising the blue auto-check ring. When the blue ring is 1/8" above the steel retaining ring, the hub is properly filled.
The O-ring inside the barrel of the Bearing Buddy maintains a seal from the outside. The pressurized grease inside the hub helps prevent water from entering and contaminating the grease. Bearing Buddy also includes an automatic pressure-relief feature to help prevent overfilling and damage to the inner seal. Once the hub is full, excess grease seeps around the edges of the piston and into the barrel while the blue auto-check ring remains raised.
Check the blue auto-check ring to see when it's time to add grease. If the ring has receded below or is flush with the steel retaining ring, more grease is needed. If the lip of the blue ring is 1/8" above the steel retaining ring, the hub is properly filled.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi there, I'm Michael with etrailer.com. Today we're gonna take a quick look at this Bearing Buddy stainless steel bearing protector set. This set is gonna provide two Bearing Buddies that will replace the grease caps and the hubs of one of your trailer's axles. So this system is designed to help protect your bearings by preventing water and dirt from getting in and potentially causing damage to your bearings through corrosion and pitting and that sort of thing. So this system is going to fit your 2.047 hub boards. Gonna work with the outer bearing cup or race model that you see on the screen there, as well as various outer bearing models that will fit into that race.
These are going to install very simply just like how your standard grease cap will fit in there but this will then allow your boats to have the wheels completely submerged. So the issue often comes up when you are submerging your boat trailer that your hubs have warmed up as as you're traveling to your site where you're gonna be fishing or enjoying the water. And so as those hunt hubs make contact with the cold water of vacuum forms inside the hub and that can pull water and dirt into the hub and into the bearing area so that you could potentially be causing contamination of your grease and that sort of thing. So this system is gonna maintain a slight controlled pressure about three psi with a spring loaded piston that's going to help offset that vacuum and it's gonna prevent that water and dirt from entering the hubs and bearings which is gonna help prevent any corrosion and pitting of the bearings. And then you know, long term it will help prevent bearing failure by preventing that corrosion.
These are also going to allow you to visually monitor your grease levels with this blue indicator ring here. So the ring sits flush with the top of the cylinder when it's full. If the ring is below the top, you just need to add some grease there, move that piston outward about an eighth of an inch. This will provide easy access to your grease fitting. So very simple.
They include the rubber caps here. So you just pull that off and you can hook up your grease gun, add some grease very quickly there and make sure that you've got enough. And this is also going to prevent overfilling and rear seal damage with the automatic pressure relief feature. Also, the grease is gonna seep around the piston edges and into the barrel when it's full. That way you don't have to worry about overfilling.
This is made here in the USA. It's constructed of stainless steel, so it's going to ensure longer lasting fit than say plastic or aluminum products. So it will hold up well for you. Like I said, they do include the rubber covers to help provide a little bit more protection especially for your grease zerk there. Make sure you're not getting any contaminants on there. And this does come with a lifetime warranty so if you we're to have any issues with it you're more than welcome to reach out to us here at etrailer.com and we'll be happy to work with you. Make sure you're getting good quality products, help solve any problems that may arise. But overall, I do think this is gonna be a great way. Like I said, especially if you're gonna be in and out of the water frequently, this is gonna help protect those bearings. So I think it's gonna pay for itself within a season or two not having that damage of your bearings. That completes our look for today. Again, I'm Michael with etrailer.com. Thanks for watching.
Customer Satisfaction Score:
85% were satisfied with this product
15% of customers were not satisfied
Ratings & Reviews

Jesse M.
10/26/2026
Thanks for another great review, Clark! Glad the Bearing Buddies fit perfectly and give you that extra peace of mind when launching your boat. Keeping those bearings protected is always a plus, and the classic redneck-approved look is just a bonus! Happy boating!

Brian
7/26/2026
Working great, holding up very well. Great quality and excellent value.


Gwendolyn Y.
4/28/2025
Thanks for saying that, David! I love knowing that we are your go-to :D

Arctic P.
6/14/2020
This product has proven it is the best choice for the job of keeping my utility trailer rolling trouble free.

Jim K.
8/31/2020
Great product, 1000s of miles with no grease related issues. Just a quick check before leaving home to ensure the pressure is good and off I go. Highly recommend
Do you have a question about this Trailer Bearings Races Seals Cap?
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Gwendolyn Y.
4/30/2026
They look great, Lex. Will make maintenance a breeze now.