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Bearing Buddy Bearing Protectors
Bearing Buddy Seals for Trailer Bearings

Bearing Buddy





Bearing Buddy Reviews and Installation Videos


Expert Answers about Bearing Buddy

  • How To Tell What Size Bearing Buddy Is Needed for My Trailer Hubs
  • The portion you need to measure is not the cap, but the the hub bore. Remove the grease caps and measure the diameter of the opening the caps occupy. This is the hub bore. You will need an accurate measuring devices like a set of dial calipers that is accurate to 3 decimal places. The Bearing Buddy pair you were looking at, part # BB1781, fits a 1.781 inch hub bore. The measurement you find should match exactly or very close to one of the measurements displayed on the Bearing Buddy page...
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  • How Much Grease To Use when Installing Bearing Buddies on a 1997 Jayco Pop Up Camper
  • Your Bearing Buddy instructions are correct. When installing bearing protectors on a trailer hub, you will want to fill the hub with as much grease as possible, so that you do not have to pump all that grease into the hub with the grease gun after installing the bearings and seals. This also helps to prevent pressure build up in the hub and blow out of the seal in the back of the hub. When using a bearing protector you should always use a double lip seal, like part # RG06-020, which...
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  • What Size Bearing Buddies Will Fit a Harbor Freight Trailer 94564
  • I actually called Harbor Freight about your trailer to determine what size dust cap is used on that trailer. I reached a tech and he stated that the dust cap is 52mm or 2.0488 inches. It looks like the best option is # BB2047 or # BB2047SS . However, you normally want them to be slightly larger than the hub bore to fit snugly. One thousandth of an inch may not be an issue but you need to be aware that it is not exact.
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  • Comparing Bearing Buddy and Kodiak Red Eye Trailer Bearing Protectors
  • You can use bearing protectors on a hub with electric brakes. You have to make sure you are using a double lip seal though because a single lip seal is more likely to blow and allow grease to leak out and get all over the hub and brake components. Also, you have to make sure that you do not use too much grease, even with a double lip seal, because of the same possibility of blowing the seal. Based on the numbers you have provided you will likely need a 10-19 seal, # RG06-050 for a pair....
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  • How to Determine the Correct Bearing Buddy Kit for a Boat Trailer
  • You will need to remove the wheel find out the outer bearing number. Once you have the bearing number, I can find if we have a Bearing Buddy available for it. The Bearing Buddy pages also have listings on them for what bearings they fit. The reason you have to go to such lengths to find out what Bearing Buddy Kit you need is that there are so many different variations in bearing/spindle/seal combinations that the only way to be sure you have the right part is to check the equipment you...
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  • Determining the Appropriate Bearing Buddy Size Using Bearing Part Numbers and Existing Measurements
  • To determine which Bearing Buddy would fit your trailer you will need either a measurement of the hub on your trailer, or the bearing part numbers. To measure your existing hub it is recommended to use digital calipers to get a precise measurement. The measurement needs to be of the inner diameter of the hub bore. Once you have that measurement then you can choose the Bearing Buddy that is the next size larger. The most reliable method to identify parts for your trailer is via part...
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  • Best Grease to Use for Boat Trailer Hubs
  • The highest quality grease we carry for wheel bearing is the LMX red grease like the part # L11390 that you referenced. If you are looking for a brand that is available in both a cartridge and a can you would want the part # L10321 for the can and part # L10320 for the cartridge. LMX Red is heavy-duty, premium grease for the toughest lubricating jobs on the biggest, heaviest equipment. It performs better under higher pressures and temperatures than standard multi-purpose grease,...
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  • Need To Replace Old Grease Seal # 171255
  • You will want to match up the old seal with the number stamped on the seal. Each seal number is an indication of a different size seal. The correct # 171255 seal that you will need is Grease Seal - Double Lip, part # 58846. This seal includes the spring that you referred to.
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  • What Size Bearing Protector Will Fit a Harbor Freight Utility Trailer with 2.047 Inch Hub Bore
  • With a hub center hole diameter of 2.047 inches, there are 2 Bearing Buddy options for you. First we have # BB2047 that you have referenced. These are chrome Bearing Buddies. The other option is a set of stainless steel Bearing Buddies, # BB2047SS.
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  • How To Find Bearing Replacement For Harbor Freight Trailer
  • In order to find the best replacement bearings and seals for your Harbor freight Trailer, you will need to remove the wheel and hub and pull the bearings, seals, and races off your spindle. I have attached a photo that shows where you can find the numbers on those items. If you are not able to find the numbers on these items, you will need to take some measurements of the spindle with a precision instrument like a digital caliper in the locations as shown in the attached photo. Typically,...
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  • Replacement Dust Cover for Bearing Buddy that Measures 2-1/2 inches Across
  • The Bearing Buddy Replacement Bras you will need are part # BB23B, model 23B.
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  • How to Determine Correct Bearing Buddy for 1994 Ranger Trailer with Outer Race # 68110
  • The outer race number you provided, 68110, corresponds to part # L68110 from TruRyde. This race works with bearing # L68149 and has an outer diameter of 2.327 inches. The Bearing Buddy with the closest diameter to this is part # BB2328, which is a chrome-plated pair of bearing protectors that fits a hub bore of 2.328 inches. We also offer a stainless-steel version, part # BB2328SS. You will need to confirm either the outer bearing number from your trailer spindle or take a precise...
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  • How to Choose the Correct Replacement Bearing Buddy Bra
  • The plastic caps for the Bearing Buddy bearing protectors that you are looking for are the Bearing Buddy Bras. We carry three different bras, # BB17B, # BB19B and # BB23B that fit different ranges of Bearing Buddy sizes. You should choose the Bearing Buddy bra that will fit your model bearing buddy. The model numbers that these bras fit are listed on the product page. If you do not know the model of your Bearing Buddy, then you can measure the bore hole diameter on your hub with a precise...
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  • What Size Bearing Buddy to Replace 2-7/16-Inch Grease Cap
  • The best way to measure hub bore to determine which Bearing Buddy size you need is with a digital caliper. If you do not own one you may be able to borrow or rent one from a local auto parts store. Your other option is to obtain the outer bearing number from your trailer. You may be able to obtain the bearing number without having to pull it from the spindle; try wiping it clean of grease to see if the bearing number can be read. The size you quoted, 2-7/16 inches, corresponds to...
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  • Bearing Protector Grease Cap Installation on a Boat Trailer with EZ-Lube Spindles and Disc Brakes
  • When installing a disc brake kit, like the Titan Disc Brake Kit, # T4843400, on your boat trailer I recommend staying with the original EZ-Lube grease caps, like part # RG04-040. Bearing protectors are not recommended for use with EZ-Lube spindles because the grease zerk in the end of the spindle will interfere with the inside of the bearing protector when pressed into the hub. Grease zerks are pressed into the end of EZ-Lube spindles and are usually very hard to remove. If you were...
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  • Can I Use Bearing Buddy Bearing Protectors With an Easy Lube Spindle
  • Easy lube spindles are not compatible with Bearing Buddy Bearing Protectors. You could use the Bearing Buddy Bearing Protectors if you remove the zerk fitting. You really do not need Bearing Buddies though. The whole purpose of Bearing Buddy Bearing Protectors is so that you do not have to remove the grease cap. I have linked a video review of the Bearing Buddy Bearing Protectors.
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  • Finding The Right Size Bearing Buddy For Utility Trailer
  • You'll need to use an accurate measuring device like a digital caliper to measure the inside diameter of the hub bore. A ruler or tape measure wouldn't be accurate enough. I have attached a photo of a hub that shows where the measurement should be taken. If you measure and find the opening to be 1.98 inches then the Bearing Buddy I recommend is part # BB1980A-SS. If you find that the inside hub bore measures 2.047 inches, part # BB2047SS would work well for you. If you find that...
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  • What is the Benefit of Using Bearing Buddies on a Travel Trailer
  • Yes, even if you do not plan on much marine activity, you can still benefit from adding Bearing Buddies, # BB1980A-SS. They will help to prevent wheel bearing failure by keeping out dirt and moisture, something that all trailers will come across. Adding grease to the bearings will be much easier as you will have a fitting on the caps that will allow you to add grease with a grease gun like # L30191. And the blue ring will allow you to know when to add grease. All of this will help extend...
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  • Availability of a Replacement Grease Seal with 1.5 Inch Inner Diameter and 1.980 Outer Diameter
  • The closest grease seals that we carry to the dimensions you have specified are Grease Seals, # RG06-020, for a double lip seal pair, or # 10-9 for 1 single lip seal. These have an inner diameter of 1.5 inches and an outer diameter of 1.987 inches. That is only .007 inches larger than the 1.980 you have indicated. To find the exact replacement, I would need to know the inner and outer bearing numbers stamped into the metal of the bearings. I have included a video below showing how to...
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  • How to Measure a Hub Bore Diameter to Determine What Size Bearing Buddies Fit a Trailer Hub
  • To find the correct size Bearing Buddies you can take a set of calipers, dial or digital, and measure the diameter of the hub bore. Part # BB2047 fits a bore size of 2.047 inches. Part # BB2080 fits a hub with a 2.080 inch bore. You will need to measure your hubs to see what size they need.
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  • How to Determine Correct Bearing Buddy for 1991 Lil Rider Boat Trailer
  • You can determine the correct Bearing Buddy for your 1991 Lil Rider boat trailer by checking the part numbers on the existing outer bearing and race. I have attached a photo showing where these parts numbers are typically found. Trailer manufacturers do not necessarily use the same components on all production runs so a check of your existing parts is called for. You can search our site with the bearing number to find the appropriate Bearing Buddy. An alternative method for identifying...
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  • How to Remove Bearing Buddy Trailer Bearing Protectors
  • Bearing Buddies like # BB2441 fit very tight into a trailer hub. In order to get them out, you will need to use a rubber mallet and persuade them out. Once the Bearing Buddy starts to unseat from the hub you can grab it and wiggle it out.
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  • How To Tell If Bearing Buddy Has Enough Grease
  • The great thing about Bearing Buddy like part # BB1781 is that when you add grease to your system with the included fitting, it will move the spring-loaded piston outward and allow grease to seep around the edges to keep from damaging the seal. You can manually check the Bearing Buddy to be sure it has enough grease. All you need to do is press the edge of the piston. If you can move or rock the piston it has enough grease. I have attached a drawing of a Bearing Buddy you can check...
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  • Grease Cap/Bearing Buddy Availability for Harbor Freight Utility Trailer
  • We have found that the Bearing Buddy part # BB2047 fits several Harbor Freight Trailers. Including the following trailers 90154 42709 90153 42708 2575 2948 Or, you can measure the bore of your hub where the cap would go with a digital caliper like part # ALL641130 to see what cap you would need. Once you know the size you need check out the link I attached to see all of the caps we carry. You will need to select your size from the filters.
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  • How Does Inner Bearing Get Grease When using Bearing Buddy
  • Bearing Buddy pumps grease into the center of the hub all the way back to the grease seal. A double lip seal should be used to prevent grease from blowing out the seal when added. When the hub and seals and bearings are first assembled, they should be packed. After a period of time and when you want to maintain the grease on the bearings, the grease would travel from the zerk fitting on the Bearing buddy through the outer bearing. It would then fill the cavity inside the hub and continue...
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  • Bearing Buddy for a SnowBear Trailer with 1-15/16 inch Hub
  • 15/16 is .937 inches so your measurement comes out to 1.937 inches which is slightly smaller than the 1.938 inch diameter of the Bearing Buddy Model # BB1938. I believe this will be the correct part for your hub since there is not another bearing protector close to the dimension you have mentioned. You should measure more precisely to determine the correct size to order. If you have access to a dial caliper it would help. I contacted SnowBear and they have not gotten back to me so I...
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  • Replacement Spindle Seal # BB60005 Recommendation for a Trailstar Boat Trailer
  • Based on the measurements you gave me the Spindle Grease Seal Set, part # BB60005, would be the correct seal for your spindle. Since your previous seal had an o-ring and this # BB60005 has an o-ring also then this would be the correct part for you.
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  • How to Determine the Correct Grease Seals to Order for a 2002 EZ Loader 21 Foot Boat Trailer
  • To determine the correct grease seal for your trailer spindle and hub, we need to know the inner bearing number installed on the trailer or the dimensions of the seal surface on the spindle and the seal surface in the back of the hub. This will require removing one of the hubs and the grease seal in that hub. If you cannot find the inner bearing part number, you will need a precise measuring tool like a dial caliper to get measurements accurate enough to select the correct grease seals. Boat...
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  • How to Determine the Correct Bearing Buddy for a 2013 Carry-On Trailer
  • There are a few ways to determine which Bearing Buddies will fit your 2013 carry on trailer. The easiest way may be to find the manufacturer and model number of the hubs on your trailer. Since it is new, the trailer dealer or manufacturer may be able to give you this information. I did some research on the Carry-On trailers and found that they do use two different brands of axles and hubs, depending on where the trailer was manufactured. If the trailer manufacturer cannot provide this...
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  • 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.
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