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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

  • Using Bearing Buddies on 10K Axle With Oil Bath Hubs
  • Although they're most frequently used on boat trailers, you can use a Bearing Buddy on just about any trailer. You'll want to make sure to install a double lip grease seal, and be careful not to overfill hub. Even with a double lip seal, many folks tend to overfill their hubs and end up blowing out the seal (myself included.) I did some research, and found that the hub bore of the typical 10K axle is around 3.5 to 4.3 inches in diameter, which is larger than any of the Bearing Buddies...
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  • Which Bearing Buddy and Grease for 1700 Lbs Carry-on Utility Trailer
  • Although bearing buddies are primarily meant for boat or PWC trailers, you can certainly use them on a utility trailer. To choose the correct diameter Bearing Buddy use a precise measuring tool like a dial caliper and measure the inner diameter on the hub where the grease cap sits. You will want to match that measurement as closely as possible to the measurement on the Bearing Buddy product pages. I have attached a link to all of our bearing protectors for you to reference. The alternative...
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  • Issue with Bearing Buddy Leaking Grease from Overfill Port
  • Generally speaking bearing grease has so little water in it that significant expansion due to freezing temperatures is unlikely. Higher operating temperatures within the hubs while underway would potentially thin the grease but again not cause much in the way of expansion of its volume. Typically Bearing Buddies are used on boat trailers to keep water out of the hubs. Since boat trailers are not often used in extreme cold weather this may be why we have not heard of thermal issues like...
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  • Bearing Buddies Needed for Al-KO 7200 lb Hubs
  • To determine which Bearing Buddy you need, you'll either need to measure the hub bore (inside diameter of hub where grease cap inserts) or provide me with the outer wheel bearing reference number. With the bearing number, I can find the corresponding race for the bearing. The race's outside diameter will match the diameter of bearing protector you'll need. I would recommend replacing the grease seal as well. Use a double lip seal to help prevent blow-out. To determine which seal you'll...
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  • How to Remove a Bearing Protector from a Trailer Hub
  • Bearing protectors like Bearing Buddies are a very tight fit in a hub. If you cannot wiggle it out by hand then using a rubber mallet and tapping it (not hard but firm) first on the left, then the right, then the top, then the bottom, then repeat, will help loosen it up so you can pull it off. I have included a link to a video as well that should help. Removal of the Bearing Buddy takes place right in the beginning of the video.
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  • Dimensions of the Replacement Bearing Buddy Bras # BB19B
  • I went and pulled the Replacement Bearing Buddy Bras # BB19B from our warehouse to get the dimensions you requested and found them to be 2.07 inches from the inside of the cover and 1.29 inches deep.
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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. This cover is designed to fit Bearing Buddies with an outer diameter of 2-1/2 inches.
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  • How to Pick Out Bearing Buddies for a Camper Trailer
  • In order to pick out the correct bearing buddy you will need know the pilot hole of your hub. To do this, remove the wheel and tire and remove 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. The Bearing Buddies # BB1980A-SS that you referenced are for hubs with a 1.98 inch hub bore. If...
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  • How To Measure to Pick Out Correct Bearing Buddy for Boat Trailer
  • In order to pick out the correct bearing buddy you will need know the pilot hole of your hub. To do this, remove the wheel and tire and remove 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. You will want to use a dial caliper or a micrometer for this so that you get an exact measurement. I have included a video demonstrating the Bearing Buddy. The...
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  • Bearing Buddy Recommendation for a Harbor Freight Trailer 92174
  • Most likely the Bearing Buddy Bearing Protectors - Model 2047 # BB2047 that you referenced would be the correct Bearing Buddies for your Harbor Freight trailer since these have been confirmed to fit several of the other model Harbor Freight trailers, but since we haven't confirmed it yet you will need to measure the hub bore of the hubs on your trailer. If the hub bore is 2.047 then these would work for you.
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  • Grease Cap for a Concrete Mixer with Inner Diameter of 2.375
  • The closest grease cap we offer to the dimension you listed that is designed for a trailer hub would be the # F001601, this is designed for a 2.333 inner diameter hub so it might be a little small. It is a press on style that does not have a rubber seal though. Since this is designed for trailer hubs I can't safely guarantee that it would work for you.
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  • Replacement Bearing Buddy Bras for ~2 Inch Bearing Buddies
  • There isn't a 2 inch Bearing Buddy so you likely have a 1.98 or a 2.047. In either case # BB19B would be the correct replacement Bras.
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  • Can Bearing Buddys Install on an EZ Lube Spindle
  • If you wanted to install a bearing buddy like the part # BB1980A-SS on a EZ lube spindle you would first need to remove the zerk fitting.
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  • 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...
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  • How to Pick Out Bearing Buddy for a 5th Wheel Trailer
  • In order to pick out the correct bearing buddy you will need know the pilot hole of your hub. To do this, remove the wheel and tire and remove 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 with a mircometer. I have included a video demonstrating the Bearing Buddy. The Bearing Buddies # BB1980A-SS that you referenced are for hubs with a...
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  • How Do I Determine What Bearing Buddy Bearing Protectors I Need for My 2006 Pilgrim Cirrus Camper
  • In order to see if the Bearing Buddy Bearing Protectors, # BB2441, are the correct ones for your trailer, you will need to measure the inner diameter of your hub bore. This measurement needs to be very accurate so you will want to use a dial caliper. If the inner diameter of your hub bore is 2.441 inches, # BB2441 will work for you. If it is not, I am attaching a link to all of the Bearing Buddy Bearing Protectors that we have available. Take your measurement and match it to one...
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  • Are Grease Seals Supposed to be Curved to Match the Radiused Edge of Bearings
  • Every bearing we sell has that radiused edge that you are referring to so all of the seals we carry would work as long as you get the correct one for your setup. Grease seals do not seal the bearing so they do not have to match curvature. The seals seal the hub bore. Can you tell me what the bearing number is on your bearing? There's a glare in the picture so I can't see what bearing you have to match the correct seal to it. I attached a link to an FAQ article on wheel bearing backing...
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  • How to Pick out Bearing Buddies
  • In order to pick out the correct bearing buddy you will need know the pilot hole of your hub. To do this, remove the wheel and tire and remove 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. The Bearing Buddies # BB1980A-SS that you referenced are for hubs with a 1.781 inch hub bore.
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  • Selecting Replacement Bearing Buddy Bras for Proper Fit
  • The easiest way to find the correct size Bearing Buddy bras for your trailer is to use the part number of the Bearing Buddy that you have installed. We offer three sizes of bras: # BB17B fits models 1781, 1781SS, 1810 and 1810SS; part # fits models: 2328, 2328SS, 2441, 2441SS, 2717, 2717SS, 2562, 2562SS, 2240 and 2240SS; and part # BB19B fits models 1980, 1980SS, 1980A, 1980A-SS, 1938, 1938SS, 1968, 1968SS, 2047, 2047SS, 2080 and 2080SS.
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  • How to Measure to Determine the Correct Grease Seal on a Trailer Hub
  • I could not find any information on the seal number you listed so yes, you will need to take an accurate measurement of the outside diameter of your existing seal, or the inside diameter of the mounting surface for the seal in the hub. You will also need an accurate measurement of the spindle at the seal surface. I have posted a photo to show the dimensions you will need to measure. A dial caliper will provide an accurate measurement to determine the correct seal for your hub and spindle. I...
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  • Bearing Buddies for 8000 LB Arctic Trailer
  • In order to choose the correct model Bearing Buddies for your trailer, you would need to determine the inside diameter of the hub bore. You would need to use a digital caliper to get the hub bore measurement, as a ruler or measuring tape would not be accurate enough. Once you know the hub bore, you can use the provided link to find the correct Bearing Buddy. With the hub bore diameter, you can use the link to go to the bearing protector product page, where you can use the filters on...
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  • 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.
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  • Will Spindle Grease Seal Set # BB60011 Work With EZ Lube Spindle
  • The Spindle Grease Seal Set, part # BB60011, can be used on an EZ Lube Spindle provided you have correctly matched the seal and spindle dimensions. The best way to determine what seals would work for you is to match your existing seals based on their part number. Please refer to the photo provided that shows the typical location for the part number on both grease seals and bearings. In case you cannot locate the existing part numbers, I have also attached a drawing that shows the...
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  • How to Identify Correct Bearings and Bearing Buddies for a 2007 Carson 20-Foot Tandem Axle Trailer
  • Thank you for providing your trailer year/make/model. In order to know the correct replacement bearings and bearing buddies for your trailer we will need the numbers from your current inner and outer bearings. This is the surest way to identify correct replacements. (Trailer manufacturers may use different bearings from one production run to another so checking the bearings themselves is the best way to know for sure). The only other way is to take exact measurements (with a precision...
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  • How to Determine Which Bearing Buddy Bearing Protectors Will Fit a Boat Trailer
  • The best way to determine what size grease caps or Bearing Buddies will fit your hubs is to pull a hub off of the trailer and get the inner and outer bearing numbers stamped into the metal of the bearings. With those numbers I can determine many replacement parts for your hubs including which Bearing Buddies fit. Another way is to measure the inner diameter of the hub bore (where the Bearing Buddies will fit into). You will need to use a set of digital or dial calipers to get the most...
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  • What Order do the Parts Get Installed for Spindle Grease Seal Set # BB60001 for Bearing Buddies
  • The video is correct. The diagram is more for identifying the parts and their basic placement. The o-ring actually is supposed to ride on the spindle but can actually fit through that stainless steel ring when not on the spindle. So basically, you will slide on the stainless steel ring first then slip the o-ring on. The grease seal will install in the back of the hub just like you would normally do with a seal. You would then install the hub. So the diagram is basically an exploded...
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  • Recommendation For Correct Grease Seal When Using Bearing Buddy Protectors on Motorcycle Trailer
  • The Bearing Buddy Seals, part # BB60001, will not fit your application. I would recommend to use the TruRyde Double Lip Grease Seals, part # RG06-010. These are the correct size and are a double lip grease seal. These seals will work better than the normal single lip seal, when using the Bearing Buddy protectors on your trailer. The double lip seal will help maintain the slight pressure that is in the hub when using the Bearing Buddy protectors.
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  • Why A Bearing Buddy Is Not Recommended On A 1986 Dodge Ram D100
  • The Bearing Buddy bearing protectors are designed for use on boat trailers. On boat trailers, when the trailer is submerged into water the sudden cooling of the bearings causes a vacuum that will try to suck water into the bearing area. This water will break down the grease and also contaminate the grease with dirt, which will cause corrosion and pitting on the bearings of your trailer axle. The Bearing Buddy bearing protectors will fill the axle hub with grease which will keep a slight...
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  • Grease Cap Recommendation for an EZ Lube Spindle
  • You have EZ-lube spindles so a bearing buddy wouldn't be the right grease cap to use. 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. To pick out the correct grease cap you would need to measure the inside diameter of the hub opening to determine which cap size is needed. You would want to choose a cap whose outside diameter matches...
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  • What to Measure to Get the Correct Bearing Buddy
  • Sounds like you are trying to pick out the correct Bearing Buddy for your trailer's hub. To do this you will need to remove your current grease cap and measure the diameter of the hub bore. With that measurement you will be able to pick out the correct Bearing Buddy to fit your hub. The part # BB2441SS that you referenced would fit a hub bore of 2.441 inches, if that is what you have then this would be the correct one for you. If not, check out the link I attached that will take you...
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