1. Trailer Bearings Races Seals Caps
  2. Bearing Buddy
  3. Caps
  4. Bearing Protector Grease Cap
  5. 2.240 Inch
Bearing Buddy Bearing Protectors - Model 2240 - Chrome Plated (Pair)

Bearing Buddy Bearing Protectors - Model 2240 - Chrome Plated (Pair)

Item # BB2240
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Our Price: $40.25
Trailer Bearings Races Seals Caps
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Bearing Buddy Trailer Bearings Races Seals Caps - BB2240
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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. Lowest Prices for the best trailer bearings races seals caps from Bearing Buddy. Bearing Buddy Bearing Protectors - Model 2240 - Chrome Plated (Pair) part number BB2240 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (23)
  • Q & A (16)
  • Photos
  • Why etrailer?

Bearing Buddy Trailer Bearings Races Seals Caps - BB2240

  • Caps
  • Bearing Protector Grease Cap
  • Bearing Buddy
  • 2.240 Inch

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.


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 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


Specs:

  • Fits 2.240" hub bore
    • Works with 1700 series outer bearings
    • Works with outer bearing cup (race) model 1729
      • Commonly found on 5,200-lb Dexter axles
  • 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.



43400 Bearing Buddy Model 2240 - Chrome Plated (Pair)






Customer Reviews

Bearing Buddy Bearing Protectors - Model 2240 - Chrome Plated (Pair) - BB2240

Average Customer Rating:  4.9 out of 5 stars   (23 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.

- BB2240
by:

Awesome customer service, very knowledgeable and cordial. Awesome Company, I order often and have never been dissatisfied! Thanks Staff 694301



- BB2240
by:

Product looks good I have not installed yet, but it appears to be in brand new condition 146726



- BB2240
by:

works good Thanks 853049



- BB2240
by:

Products Shipped in timely manner. 764808



- BB2240
by:

Just what I needed for my hay trailer. These bearing buddy’s keep mud and water out of the wheel bearings on my hay trailer I use to haul round bales to the cattle in the winter. They fit snuggly and give the the ability to keep the bearings greased via the zerk fitting on the bearing buddy. 732749



- BB2240
by:

Perfect fit and fast shipping 690323



- BB2240
by:

Installed easily. 680485



- BB2240
by:

As described and at a great price. Delivery was as if they shot it from a missile right to my home. 656735



- BB2240
by:

Great Service and the only place I could find a cap for a 2.24 inch bore Hub 644471



- BB2240
by:

Looks to be great quality. Have yet to install. 592496



- BB2240
by:

Great product. Worked great till I lost one. Then the second one was stolen with a different sized one on the other side of the trailer. Wish there was some way of locking them to the hub. 561375



- BB2240
by:

Received product in a vary timely manner. Thank you! 519128



- BB2240
by:

work very good thanks 482629



- BB2240
by:

Performs as promised 430701



- BB2240
by:

Performs as promised 430700



- BB2240
by:

THE BEARING BUDDIES ARE STILL IN PLACE. NOT SURE WHEN I LOST THE PLASTIC/NYLON DUST COVERS I HAVE PLENTY OF PEOPLE BORROWING MY CAR TRAILER IN BETWEEN 426199



- BB2240
by:

I recently purchased a trailer equipped with axles with discontinued hubs, however my hubs were in excellent condition. It was missing a dust cover from one of the hubs which was rare oddball size. etrailer had bearing buddies which were a perfect fit. 405923



- BB2240
by:

My bearing buddys shipped imediately and arrived in 3 days. They installed perfectly and i look foward to many years if convenient bearing srrvice. Etrailer has privided great setvuce every time I have ordered parts 394083



- BB2240
by:

The bearing buddy works great for an axle that has a very difficult grease cap to find. Just make sure your cotter key is close as possible to the castle nut so that it doesn't rub the bearing buddy. 319256



- BB2240
by:

GREAT PRODUCT. WAS A VERY HARD TO FIND GREASE CAP AND THESE GUYS HAD IT TO MY DOOR IN THREE DAYS. WILL DO BUSINESS WITH AGAIN. ALSO OPEN LATE TO ANSWER ANY QUESTIONS. 319086



- BB2240
by:

Installed easy. Works great. Just hope they stay on with our bumpy and getting worse roads. 269948



- BB2240
by:

the product fit what i order for. 193704



- BB2240
by:

Everything looks great. Very pleased with the service at etrailer. 79487


23
23

Ask the Experts about this Bearing Buddy Trailer Bearings Races Seals Caps

  • Bearing Buddy for Hub Bore of 2.25-Inches
    For a hub that uses a 2.25-inch grease cap the Bearing Buddy to use will be either chrome set # BB2240 or stainless steel set # BB2240SS. It is best to use a caliper like # 301-17068 when measuring the hub bore as this gives the most accurate dimension. It is better not to measure the old grease cap since these can become distorted from the installation and removal processes.
    view full answer...
  • Bearing Buddy Recommendation that is the Next Size Smaller than the # BB2240
    The next smaller size Bearing Buddy from the Bearing Buddy part # BB2240 that you referenced would be the Bearing Buddy # BB2080. I attached a link to a page that has all of the Bearing Buddies we offer.
    view full answer...
  • Bearing Buddy Recommendation to Fit Trailer Hub that Has Bore of 2.25 Inches
    The Bearing Buddy part # BB2240 that you referenced is going to be the model you would need. This has an outer diameter of 2.24 inches which is most likely what your hub actually has. These are tapered to though so that they will fit your hub either way.
    view full answer...
  • Is There a Bearing Buddy that is Threaded Comparable to a 2240?
    I contacted Bearing Buddy to see what threaded cap they recommend for your application to convert from oil bath to grease. They said that the Bearing Buddy Bearing Protectors, # BB2441SS, is most likely the application for your trailer based on the 2240 question. This Bearing Buddy threaded grease cap has 12 threads per inch, as does # BB2080T-SS, but there are other threads like the # BB1980T-SS which has 24 threads per inch.
    view full answer...
  • Bearing Buddy for 2-3/8" Grease Cap
    A measurement of 2-3/8" is equal to 2.375" and there are a number of bearing buddies that are close to that measurement. In order to determine the exact replacement you need, you'll have to use a digital caliper such as # PTW80157 and measure your hub bore for the exact measurement. Your other option would be to take a look at your outer bearing, as that will also tell you what you'd need. Bearing Buddy # BB2240 fits a 2.240" hub bore and works with 1700 series outer bearings. Bearing...
    view full answer...
  • Bearing Buddy Recommendation for a Trailer Hub Bore of 2-3/8 inches
    Most likely the measure you took would have been 2.240 inches had you used a digital or dial caliper so the correct Bearing Buddy would be the part # BB2240. You might recheck the measurement you took to be certain that it is 2.240 inches.
    view full answer...
  • Will Bearing Buddies Prevent Water from Getting into Hub
    Bearing Buddies like # BB2240 are waterproof. They are commonly used in boat applications so you would not have to worry about them allowing water past them into your hub. Based on the dimensions of your hub these are the correct fit. I attached a review video for this kit for more info for you to check out as well.
    view full answer...
  • Package Contents of Bearing Buddy Model 2240 # BB2240
    Yes, the # BB2240 will include the matching bra rubber covers in the kit for no extra cost.
    view full answer...
  • 2.24" Grease Cap Replacement
    I have a solution for you but we do not have any standard grease caps with a 2.24" diameter like the # RG04-020 . I recommend going with the Bearing Buddy Bearing Protectors # BB2240 which will not only protect your bearings but provide an easy, safe way to monitor and control the level of grease in your axle hub. These are especially helpful on boat trailers, since they seal out all water, dirt and debris and allow for complete submersion. I've attached a brief video review of the...
    view full answer...
  • Bearing Buddy Bearing Protectors for a 2-1/4 Inch Pilot Hole
    The correct tool to use for measuring the pilot hole opening of a trailer hub is a digital caliper like part # PTW80157 to the nearest thousandth. However, based on the 2-1/4" measurement you provided you will want to use the Bearing Buddy Bearing Protectors part # BB2240SS for stainless or part # BB2240 for chrome. The stainless will resist corrosion better than the chrome. I have attached a review video of both options for you.
    view full answer...
  • Availability of Bearing Buddy Between Size 1.98 inches and 2.33 inches
    Like 2.047 inches? For that we have the # BB2047. Or for 2.24 inches we have the # BB2240. Your best option is to use a digital caliper like the part # PTW80157 to measure the bore of the hub to pick out the size that will fit it.
    view full answer...
  • Bearing Buddy to Fit Ranger Tandem Trailer with Hub Bore Diameter 2.296 in
    You are between sizes based on what you listed but most likely you need the # BB2328 that you referenced which is for a hub bore of 2.328 inches. The next size down is the part # BB2240 which is for a 2.240 inch diameter bore and is most likely what you tried that ended up falling out.
    view full answer...
  • Will the 2.047 inch Bearing Buddy Fit a Bore Size of 2.012 inches
    I believe that the bearing buddy that you hub bore diameter that you saw was the 2.240 inch size, part # BB2240, which will be too big to fit in your hub bore size of 2.012 inches. The next step up from the # BB1980A that you purchased (which fit hub bore size 1.980) will fit the hub bore size 2.047 inches and is part # BB2047. Since you want the fit to be as accurate as possible this size will be too big. I called Bearing Buddy and my contact confirmed this. Custom-built trailers can...
    view full answer...
  • Need Bearing Buddy for 2-1/8 Inch Diameter Trailer Hub Bore
    The closest Bearing Buddy we have to a 2-1/8 measurement is going to be a slightly larger set that measures 2.240 inches, # BB2240 or # BB2240SS. In order to determine the correct Bearing Buddy for your trailer, the best way is to get the inner and outer bearing numbers on the bearings and/or the number on the outer cup (race). The Bearing Buddy part numbers listed above fit 1700 series outer bearings with race model 1729.
    view full answer...
  • Installing Bearing Buddy Bra # BB23B
    As a first step, make sure you are using the correct Bearing Buddy Bra for your application. The # BB23B you mentioned is sized to fit Bearing Buddies that fit hub bores ranging from 2.240 inches to 2.562 inches, or model #s BB2328, BB2328SS, BB2441, BB2441SS, BB2717, BB2717SS, BB2562, BB2562SS, BB2240 and BB2240SS. Applying a very very small bit of grease (I am talking tiny) to the outside of the Bearing Buddy will allow the bra to slide on easier. While sliding the bra into place,...
    view full answer...
  • Grease Cover Recommendation for Trailer Hub Bore that is 2.25 inches
    We have the Bearing Buddy part # BB2240 which will fit the hub bore of 2.25 inches that you said you have. You will want to verify that is the dimension you need with a digital caliper like part # PTW80157.
    view full answer...

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Info for this part was:

Written by:
Tyler C
Installed by:
Jeff D
Expert Research:
Jameson C
Expert Research:
Adam R
Video Edited:
Chris R

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