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  1. Trailer Bearings Races Seals Caps
  2. Bearing Buddy
  3. Caps
  4. Bearing Protector Grease Cap
  5. 3500 lbs Axle
  6. 1.81 Inch
Bearing Buddy Bearing Protectors - Model 1810SS - Stainless Steel - Qty 2
Bearing Buddy

Bearing Buddy Bearing Protectors - Model 1810SS - Stainless Steel - Qty 2

Part Number: BB1810SS
In Stock
$30.80
Retail:$34.78
You Save: 11%
Trailer Bearings Races Seals Caps
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Protect your trailer bearings from water, dirt, and corrosion while making greasing quick and easy. Stainless steel Bearing Buddies maintain light grease pressure inside the hub to help prevent bearing failure, even when your hubs are submerged. Great Prices for the best trailer bearings races seals caps from Bearing Buddy. Bearing Buddy Bearing Protectors - Model 1810SS - Stainless Steel - Qty 2 part number BB1810SS can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (1711)
  • Q & A (0)
  • Videos (2)
  • Photos

Bearing Buddy Trailer Bearings Races Seals Caps - BB1810SS

  • Caps
  • Bearing Protector Grease Cap
  • 3500 lbs Axle
  • Bearing Buddy
  • 1.81 Inch

Protect your trailer bearings from water, dirt, and corrosion while making greasing quick and easy. Stainless steel Bearing Buddies maintain light grease pressure inside the hub to help prevent bearing failure, even when your hubs are submerged.


Features:

  • Replaces the grease cap in the axle hub
  • Prevents wheel-bearing failure
    • Keeps water and dirt out of hubs and bearings
    • Allows boat trailer wheels to be completely submerged
    • Stops corrosion and pitting on bearings
  • Provides easily accessible grease fitting
    • Makes adding grease to the bearings quick and simple
  • Maintains slight, controlled pressure (3 psi) with spring-loaded piston, preventing water from entering hub
  • Prevents overfilling and rear seal damage with automatic pressure-relief feature
    • Grease seeps around piston edges and into barrel when full
  • Constructed of stainless steel for long-term corrosion protection
    • Ensures longer-lasting fit than plastic or aluminum products
  • Includes rubber covers
  • Installs easily
  • Made in the USA


Specs:

  • Fits 1.810" hub bore
    • Works with outer bearing model LM12749
    • Works with outer bearing cup (race) model LM12711
  • Lifetime warranty


Bearing Buddy Installed Diagram

Bearing Buddy Operation

Replace your existing grease cap with a Bearing Buddy to ensure a safe, easy way to monitor and control the level of grease in your axle hub. To adjust the amount of grease in the hub, use a grease gun to add more through the zerk fitting. Adding grease moves the Bearing Buddy spring-loaded piston outward 1/8".


The O-ring inside the barrel of the Bearing Buddy maintains a seal from the outside. The interior of the Bearing Buddy is pressurized which prevents water from entering the barrel and diluting the grease.

An automatic pressure-relief feature is built into the Bearing Buddy. When the device is full, grease will seep around the edges of the piston and into the barrel. This prevents overfilling that can damage the inner seal.


You can manually check the grease level in your Bearing Buddy by pressing on the edge of the piston. If you can rock or move the piston, the hub is properly filled.



41108 Bearing Buddy Model 1810SS - 1.810 Bore - Stainless Steel Bearing Protectors - Quantity 2





Video of Bearing Buddy Bearing Protectors - Model 1810SS - Stainless Steel - Qty 2
Video Thumbnail Video Player Dialog

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Detailed Breakdown of the Bearing Buddy Bearing Protectors

Kevin: Today we're gonna take a look at these stainless steel bearing buddy bearing protectors for the 1.810 hub bore and this part is for two of them. This bearing buddy design is an easy way to protect your bearings by keeping water out and insuring enough great is in the hub. This is great for marine applications. I'm just gonna pull the cover off here to show you. The stainless steel construction will provide the best for corrosion resistance in the marine applications and the way this installs is this replaces the grease cap on the end of your axle hub so you just pop your grease cap off and then tap this in right in that place. This does prevent wheel bearing failure. It will keep the water and dirt out of your hubs and your bearings and allows your boat trailer wheels to be completely submerged in the water and it eliminates repacking of your bearings.

If you notice right here on the end it has a grease zerk fitting. This easily accessible grease zerk fitting will make adding grease to your bearings very quick and simple. Just attach your grease gun to there and pump grease in there. Now, when you do fill it with grease it does maintain a slight controlled pressure of about 3 PSI with the spring loaded piston in here. The reason it does that is that helps prevent water from entering the hub and then when you're filling it up it will prevent over filling and rear seal damage of your hub because it has an automatic pressure relief feature so in other words when you're pumping it up if it gets overfilled the grease will start seeping around the piston edges and into the barrel when it's full. Again, this is a stainless steel construction.

It has stainless steel internal parts that will give you longer lasting fit than some of the plastic or aluminum products out there and again, it does include these rubber covers that you just put over there to protect it. It installs very easily on your hub. They are made in the USA. A few specs on them again is it is designed to fit the 1.810 hub bore and that dimension is the diameter right there so if we put a ruler on it it's the part that taps into your hub and you can see it's the 1.810 hub bore and that's designed to work with the LM-12749 outer bearings. That should do it for the review of the stainless steel bearing buddy bearing protectors for the 1.810 hub bore and this is for a quantity of two. .

Customer Satisfaction Score:

Ratings & Reviews

4.8

1711 reviews
5 Stars
(1512)
4 Stars
(126)
3 Stars
(29)
2 Stars
(13)
1 Star
(31)
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by:
Really only needed a cap. Because not a boating trailer. But 1.81 diameter in dust caps is hard to find. It fits good. Etrailer is the place, when it comes to a large size variety.
by:
These are a hard to find model number and so thankful you had them. Quick delivery too. We had lost one and after seeing how hard to find they were I ordered 2 sets to have spares.
by:
Found what I needed at the best price with shipping. Quick and easy .
by:
Went right on! Just like they should (and expected).
by:
Look great and I have used a pair just like them before but I purchased the wrong size
by:
by:
by:
by:
Product Review: Only intimidating before you install. Really easy, pop out the OEM caps and replace with the bearing buddies, fill the buddies with your grease gun and you are done. Nice to know my (well greased by the factory ) wheel bearings now have a supply of grease under slight pressure to be sure there will always be grease in my bearings and foreign matter will be kept out.
Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

4/30/2026

They look great, Lex. Will make maintenance a breeze now.

by:
Delivered right on time fast shipping great products!
by:
The Bearing buddy’s fit my hub well, and give me added confidence when launching my light duty boat trailer. They were simple enough to pump grease into, although with my poor quality grease gun, I can’t tell if they got enough. The beauty is I can just keep pumping that grease in there periodically. The idea that the positive pressure they create helps keep water out of the hub assembly is reassuring, and they add to that cool, roadworthy aesthetic that red necks love.
Jesse M. profile picture
Etrailer Expert

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!

by:
Been using bearing buddy hub covers for over 20 years on multiple different units. Just better than the copycat versions. Have adapted them to pivot spindles on front mount deck mowers and use them on both on road trailers and off road trailers.
by:
I love them, but they will not work if you have hubs with grease fittings on the spindle. The BB piston will hit the fitting on the spindle. Then, My grease fittings were the driven-in type, so that ballooned the project.
by:
Great price, excellent quality, delivery was fast and installation was easy, the bearing buddies arrived today they are on the trailer and ready to go.
Thanks e trailer!
Brian profile picture

Brian

7/26/2026

Working great, holding up very well. Great quality and excellent value.

Jerred H. profile picture
Etrailer Expert

Jerred H.

7/26/2026

@Brian That's great to hear Brian! Glad the Bearing Buddies are working so well for you.
by:
Still never fit. Do I ground off the threads. Enough for it to fit. This is a strange axel. I took the brakes down to a trailer company and they never seen brakes like this before I got them to work and the bearing size never had any in stock so I used the old ones good enough to go snowmobiling this winter. Hope there’s snow not to far.
by:
All 3 products are working well. Before the new parts, the trailer blew a tire which bent up the fender and smashed a tail light. I ordered what I needed from eTrailer and put my trailer back together. Parts were all available and came quick. I didn't miss any fishing opportunities as a result.
by:
Bearing Buddies customer support is horrible, one of my new caps was defective the grease zerk came off, I contacted them and this is what they sent me, I guess I’m supposed to bring it to a mechanic and pay $$$ to have it fixed ! Garbage !
by:
Fit like a glove!! Installation was very easy and shipping was great
by:
Perfect for my trailer and will help seal out water and hopefully add life to my bearings. etrailer is and always will be my stop for great products and service!
Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

4/28/2025

Thanks for saying that, David! I love knowing that we are your go-to :D

by:
Great product! Fits very well and is well designed for my tri axle boat trailer.
by:
I used customer service and he helped me with the measurements and getting the right product for an extremely old trailer. The product is perfect they fit perfect and I really appreciate everything they did.
by:
I replaced my plastic hub cap that fell off with these. The stainless steel models are extremely high quality. Very pleased with the purchase. After pounding them on my new hubs, I don't know how I can remove them to service the bearings in the future. Hopefully I won't have to take them off.
by:
I lost one of four bearing buddies. I love these things, I just wish they made a model that could be used with greasable spindles. Now to figure out why the first one came off my brand new trailer. I used red picture on this one, we will see.
by:
Installation instructions were very helpful and thanks to the customer service rep, these fit my hub assembly perfectly.
by:
Quick shipping easy install
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See what our Experts say about this Bearing Buddy Trailer Bearings Races Seals Caps


Info for this part was:

Employee Tyler C
Written by:
Tyler C
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Jeff D
Installed by:
Jeff D
Employee Dustin K
Video Edited:
Dustin K
Employee Wilson B
Updated by:
Wilson B
Employee Daron K
Updated by:
Daron K
Employee Dawn Z
Updated by:
Dawn Z

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