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Check grease levels at a glance with the blue auto-check ring. Chrome plated 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.
Hello everybody, this is Jeff at etrailer.com today. Today, we're gonna take a look at the Bearing Buddy chrome-plated bearing protectors with the auto-check and it's for the 2.441 hub bore. It is for a quantity of two bearing protectors. Now, these are great for marine applications. Basically the design makes the Bearing Buddy an easy way to protect your bearings by keeping water out and ensuring enough grease is in the hub. Basically, you'll replace your grease caps on your axle hub with these and provide your trailer bearings with premium protection.
Prevents wheel bearing failure by providing an easy way to control the grease volume in your axle hub and it helps keep water and dirt out of the hubs and the bearings, allows your boat trailer wheels to be completely submerged in water, and it stops corrosion and pitting on the bearings. If you notice right here, they have easily accessible grease Zerk fitting on them, makes adding grease to the bearings very quick and simple, just attach your grease gun to the Zerk fitting, pump grease in there. This will maintain a slight control pressure about three PSI with the spring loaded piston that prevents water from entering the hub. It does allow visual monitoring of your grease levels using this blue indicator ring right here. This ring will sit flush with the top of the cylinder when full.
And if the ring is below the top, you just add grease to move the piston outward about an eighth of an inch. Also prevents overfilling and rear seal damage with the automatic pressure relief feature. The grease seeps around the piston edges and into the barrel in full. Now, these are constructed of stainless steel internal parts and triple chrome-plated steel barrel, does ensure a longer lasting fit than plastic or aluminum products. And if you notice, comes with the rubber protective covers on it, that when you're finished filling it, just put the cover over there and that'll keep any of the elements from getting inside there.
And when you do go to install these, these do install easily by putting them on the hub and then using a block of wood against the Bearing Buddy and then just tap it into place with the hammer. That way it'll go on equally. These parts are made in the USA. Again, the specs on this part, it fits the 2.441 inch hub bore diameter. Now, these are also available in other diameters to fit your hub size for your application.
This part number here works with the outer bearing model number, part number LM-67048, which is commonly found on the 4,400 pound, 5,200 pound 6,000 pound, and even the 7,000 pound Dexter axles. But that should do it for the review on the Bearing Buddy chrome-plated bearing protectors with the auto-check feature for the 2.441 hub bore.
Ratings & Reviews
Rick S.
2/20/2015
A year later and the bearing buddy is doing its job with no issues to report! I know where to go when I need expert Trailer assistance - eTrailer!
Matt
8/13/2023
1 yr review still work prefect and looking like new only added a 12 of shot of grease to each side Great price at etrailer Thanks Again
Barth T.
7/11/2014
theses also work for the northern tool 5 x 8 trailer... hard to find this sizethanks fits great
Ralph
3/23/2026
It works great, no issues, the real thing at a great price. Perfect fit.
Richard
6/26/2020
Just started our camping season. Pulled the caps off, hooked up the grease gun, pumped some grease and done. Took longer to write this then grease. No pulling the 4 tires to get to the bearings and getting my hands greasy.
Hjrjolie
6/8/2020
Working great! Check the bearing buddy before and after using trailer and keep them filled. Couldnt be happier with my results. I feel confident I wont have any bearing failure for lack of grease!
Dirtstiff
2/18/2018
Bearing Buddy through trailer have given my little tag a long MC trailer trouble free confidence
Info for this part was:
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Added N.
4/8/2014
part number BB2047 will fit the following Harbor Freight Trailers.. 90154, 42709, 90153.42708, 2575 and 2948, as all those trailers use the same Harbor Freight replacement dust cover, received mine and they installed with little effort great product..Thanks etrailer,com