Provide your trailer wheel bearings with premium protection - replace your existing grease caps with Bearing Buddies. They install in seconds and provide an easy, safe way to monitor and control the level of grease in your axle hub. Call 800-298-8924 to order Bearing Buddy grease caps part number BB1810 or order online at Free expert support on all Bearing Buddy products. Guaranteed Lowest Price and Fastest Shipping for Bearing Buddy Bearing Protectors - Model 1810 - Chrome Plated (Pair). Grease Caps reviews from real customers.
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Price: $20.00

Bearing Buddy Bearing Protectors - Model 1810 - Chrome Plated (Pair)

Item # BB1810

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Bearing Buddy Grease Cap
Bearing Buddy Grease Cap
Bearing Buddy Grease Cap
Bearing Buddy Grease Cap


  • Bearing Protector
  • 1.810 Inch
  • Bearing Buddy
  • Chrome Plated Steel
  • Non-Threaded

Bearing Buddy Grease Caps - BB1810

Provide your trailer wheel bearings with premium protection - replace your existing grease caps with Bearing Buddies. They install in seconds and provide an easy, safe way to monitor and control the level of grease in your axle hub.


  • 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 internal parts and triple-chrome-plated steel barrel
    • Ensures longer-lasting fit than plastic or aluminum products
  • Includes rubber covers
  • Installs easily
  • Made in the USA


  • Fits 1.810" hub bore
    • Works with outer bearing model LM-12749
    • Works with outer bearing cup (race) model LM-12711
  • 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 appropriate 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, preventing 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.

41100 Bearing Buddy Model 1810 - Chrome Plated (Pair)

Video of Bearing Buddy Bearing Protectors - Model 1810 - Chrome Plated (Pair)

Videos are provided As a guide only. Refer To manufacturer
installation instructions And specs For complete information.

Video Transcript for Bearing Buddy Grease Caps BB1810 Review

Today we're going to take a look at the chrome plated bearing buddy bearing protectors for 1.810 hub bore and this part is for a quantity of two. Now this bearing buddy design, it's a very easy way to protect your bearings by keeping water out, ensuring that enough grease is in the hub. This part will replace the grease cap on the end of your axle hub. You just tap this in place of the grease cap. Now this will prevent wheel bearing failure because it will keep water and dirt out of your hubs and bearings. It does allow boat trailer wheels to be completely submerged and eliminates bearing repacking. Now this will provide this easily accessible grease Zerk fitting right here on the end so you attach your grease gun to that, makes adding grease to the bearing very quick and simple.

Now this piston right in here, this will maintain a slight controlled pressure, about 3 PSI with that spring loaded piston and that prevents water from entering the hub. You can press on the edge of the piston for quick, reliable lubricant level check. If you can rock the piston hub it is properly filled. Now this does prevent overfilling and rear seal damage with the automatic pressure relief feature it offers. The grease will seep around the piston edges and into the barrel when full. Now this is constructed of stainless steel internal parts and has a nice tripled plated steel barrel.

Because of that it ensures long lasting fit and works a lot better than your plastic or aluminum versions. It does include these rubber covers that go on it to protect it. It installs very quickly and easily. It is made in the U.S.A and the specs on it, it is designed to fit the hub bores of 1.810, and that would be the dimension right here. If we put a ruler on that, outer edge to outer edge, you can see is 1.810 and that is designed to work with the LM-12749 outer bearings.

That should do it for the review of the chrome plated bearing buddy bearing protectors for 1.810 hub bore. This is for a quantity of two.

Customer Reviews

Bearing Buddy Bearing Protectors - Model 1810 - Chrome Plated (Pair) - BB1810

Average Customer Rating:  5.0 out of 5 stars   (9 Customer Reviews)

Provide your trailer wheel bearings with premium protection - replace your existing grease caps with Bearing Buddies. They install in seconds and provide an easy, safe way to monitor and control the level of grease in your axle hub.
- BB1810

by: George H.09/03/2016

The Hub covers arrived quickly and fit perfectly. I couldn't locate these locally because of their unique size. A quick online search brought me to Etrailer where I easily located them at a reasonable price. Their quick response allowed me to get my boat back to the lake and into the water with destroying my wheel bearings. 290828

- BB1810

by: Jayson07/28/2015

Needed an odd ball size of baring buddy. After order was made they kept in touch with me reguarding a back order and date of delivery. I was very impressed with their continued attention. Received my order in a reasonable time frame and they fit perfectly ! I'll be ordering products from you again. Thanks 215079

- BB1810

by: Aaron09/04/2015

Bearing buddies were essential on my boat trailer and these fit perfect. had the not so common size I needed. Thanks again! 224098

- BB1810

by: Don C.07/13/2014

I was pleased how fast I got my order, and the quality was as I hoped it would be. Many thanks, Don 141118

- BB1810

by: Robert H.03/11/2017

I've use these before and they work great. Just make sure you get the right size for YOUR hubs. 351529

- BB1810

by: damon04/22/2014

They arrived quick. Got what I ordered and they went on smooth 126717

- BB1810

by: andy07/17/2015

Very good quality, and they fit like a glove. Thanks 212475

- BB1810

by: Scott C09/22/2016

Easy to install perfect for and operates properly 297427

- BB1810

by: John H.11/22/2016

No problems, worked like a charm! 318762


Ask the Experts about this Bearing Buddy Grease Caps
Do you have a question about this Grease Cap?

  • Bearing Buddy Available for Hub Bore that Measures 1-7/8 inches
  • 7/8 of an inch in decimal form is .875 of an inch. The closest Bearing Buddy we have to that would be the # BB1810 which measures 1.810 inches. You might remeasure with a digital or dial caliper like part # PTW80157.
    view full answer...

  • How to Measure for the Correct Grease Cap or Bearing Protector for a Boat Trailer
  • It sounds like you need a grease cap or bearing protectors. The Bearing Buddy Bra, # BB19B, that you referenced covers the Bearing Buddy Bearing Protectors, like part # BB1980A. In order to choose the correct grease cap or bearing protector, I strongly recommend using a precise measuring tool such as a dial caliper. Hubs can have bores that differ by only a few thousandths of an inch, so getting an exact measurement will help us choose the correct cap for you. Check out the photo I...
    view full answer...

  • Replacement Bra Covers for Bearing Buddy Trailer Bearing Protectors
  • We do have the replacement Bearing Buddy bras. For the # BB1810 size you will need # BB17B. It also fits 1781, 1781SS, 1810 and 1810SS. We also have other sets that fit different models, in case you have a different size. Part # BB19B fits the following Bearing Buddies: 1980, 1980SS, 1980A, 1980A-SS, 1938, 1938SS, 1968, 1968SS, 2047, 2047SS, 2080 and 2080SS. Part # BB23B, fits the following: 2328, 2328SS, 2441, 2441SS, 2717, 2717SS, 2562, 2562SS, 2240 and 2240SS
    view full answer...

  • Choosing Bearing Buddy Bearing Protectors for Timeout Motorcycle Tent Trailer
  • Bearing Buddy bearing protectors are offered in many sizes to fit a wide range of hub bores. The linked page will show you all parts which you can sort based on the measurement you take of your hub bore. You want to choose the Bearing Buddy with an outer diameter that is closest to your hub bore measurement. Please refer to the linked photo for illustration of the needed measurement. You will need a precision digital or dial caliper to measure your hub bore to the nearest thousandth,...
    view full answer...

  • How to Select Correct Bearing Buddy Bearing Protectors for 4 x 8 Trailer
  • I reviewed the online owner's manual for your folding utility trailer and no information is provided on hubs supplied, so to select Bearing Buddy protectors for it you will need to remove the existing grease caps and measure the inside hub bore with a precision dial or digital caliper. You will need to measure to the nearest thousandth - to 3 decimal places such as 1.810. Once you know this you can use the linked page to select the Bearing Buddy set closest in diameter. You will also...
    view full answer...

  • How Do I Measure to Find out what Bearing Buddy I Need
  • Measure the diameter of the pilot hole of your hub. Bearing Buddies replace the grease cap on the hub. Remove the wheel and tire and pop off the grease cap from the center of the hub. Usually it is a metal cap that is just lightly hammered into place. Use a screwdriver to pry off the cap. Clean the grease off and measure the opening. I have included a video demonstrating the Bearing Buddy.
    view full answer...

  • Does Redline Trailer Bearing Grease Seal # 29031 Include a Spring
  • The Redline Trailer Bearing Grease Seal # 29031 that you referenced does not include a spring. This single-lip seal is for use in the inside end of a trailer hub (the side closest to the axle and furthest from the spindle). I think the part with a spring that you are referring to is a special type of outer grease cap (not an inner grease seal) called a Bearing Buddy. These mount on the outside end of the trailer hub/spindle in place of a standard closed grease cap. They hold a supply...
    view full answer...

  • Bearing Buddies for a Utility Trailer with 1.810 Hub Bore
  • The closest Bearing Buddies that we have to the 1.83 measurement you have given are 1.81 protectors # BB1810 and # BB1810SS. Depending on how you measured (using digital dial calipers is the most accurate) and because of subtle differences, these may actually be the correct ones. To be sure, I would need to know the inner and outer bearings numbers stamped into the metal of the bearings. You want to make sure you get the correct fit because if they are too small then you will just end...
    view full answer...

  • Trailer Grease Seal Recommendation for Inner Diameter 1.7 inch and Outer Diameter 2.33 inch
  • The closest grease seal that will work for you is the part # 168233. This has an outer diameter of 2.33 inches and an inner diameter of 1.688. Since the inner diameter is a rubber portion I would stretch if needed to match yours that is only a hair larger. For dust covers the only thing we have that matches the size you need is Bearing Buddies part # BB1810.
    view full answer...

  • Replacement Bras For Bearing Buddy Bearing Protectors
  • The grease cap plugs we offer like part # DC-RP are designed for a specific size which fits a 1.18 inch opening. This is designed for the E-Z Lube grease caps. I have attached a link to our product page that has the available replacement bras for the Bearing Buddy you can check out. These may work for you but there is no guarantee. For example, if you have part # BB1781, # BB1781SS, or # BB1810, the replacement bra you need is part # BB17B.
    view full answer...

  • Replacement Bearing Buddy Recommendation for Bearing Buddy Bra Marked 17B
  • The cover with 17B on it means you have either a 1781 or 1810 Bearing Buddy currently. You would need to measure the outside diameter of the Bearing Buddy to determine which would fit. It will be either # BB1781 or # BB1810.
    view full answer...

  • Where to Measure to Pick Out Bearing Buddy for a Trailer Hub
  • Actually the dimension you are looking for when picking out a Bearing Buddy is on the hub and not the spindle of the trailer. You need to remove the cap of the hub and then measure the diameter of the bore with your mic and that is the dimension needed. See picture. The part # BB1810 that you mentioned is the correct Bearing Buddy if you have a bore of 1.81 inches.
    view full answer...

  • Measuring a Trailer Hub to Find the Right Bearing Buddies
  • Are the hubs the same part? Or different parts or manufacturers? Is the lo0ose side hub damaged at all? That is strange that the 1.781 would fit one side and not the other. To determine if # BB1810 will fit I recommend measuring the hub bore ahead of time. The measurement has to be as accurate as possible so use calipers, such as # PTW80157, to take the measurement.
    view full answer...

Do you have a question about this Grease Cap?

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Info for this part was:

Photos by:
Theodore B

Written by:
Tyler C

Expert Research:
Patrick B

Expert Research:
Michael H

Installed by:
Jeff D

Expert Research:
Jameson C

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