How To Measure to Pick Out Correct Bearing Buddy for Boat Trailer

Question

Question:

Hello: I have a 1979 shoreline trailer and a 16foot boat. How do I measure for the correct buddy bearing size? Thanks

asked by: Kirk Z

0

Expert Reply:

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 Bearing Buddies # BB1980A-SS that you referenced are for hubs with a 1.98 inch hub bore.

I attached a link to a page that has all of the bearing buddies we offer.

expert reply by: Jameson C

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Answer 1

Based on your seal dimensions you have a 3,500 lb Lippert axle hub so for a Bearing Buddy you'd want the part #BB1980A-SS.

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Answer 2

In order to find the correct Bearing Buddies you will want to get the most accurate hub bore measurement you can get. If you can't get the measurement without pulling the hub you will need to pull the hub to make sure. From the measurements…

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Answer 3

If your spindles have grease fittings that means they are EZ lube spindles which means you don't need the Bearing Buddies. EZ lube spindles are actually better overall than Bearing Buddies since they deposit grease in the center of the hub…

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Answer 4

For trailer axles that have a capacity of between 5,200 and 7,000 lbs the grease seal requirement can be one of two options without any real rhyme or reason which is pretty frustrating. Sometimes the spindle will require the smaller diameter and…

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Answer 5

Drive-in refers to how they install. These caps would get driven in instead of screwed in like oil-bath caps. One way people use to drive these caps in is to use a 2x4 and a hammer. You would push the caps on as much as possible by hand and then use…

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Answer 6

It is really easy to determine which Bearing Buddies are the correct fit for your boat trailer, though we have no way to confirm a fit on any specific make or model. For you to confirm the right Bearing Buddies I'd need to know either the outer…

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Answer 7

To install Bearing Buddies, you first need to know the grease cap diameter needed by measuring the inside of your trailer hub diameter at that location. I recommend using a digital caliper like #PTW80157 for a precise measurement. I've attached…

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Answer 8

The correct Bearing Buddy Bearing Protectors for your trailer are the #BB1980A-SS. These fit a 1.98" hub bore and work with outer bearing #L44649 which is what you will find on your Dexter axle. They have a stainless steel construction and also…

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Answer 9

Yes! You can use Bearing Buddies on anything as long as you use the right size and as long as the axles are not EZ Lube axles with the grease fittings on the ends of the spindles. If your outer bearings are L44643, L44649, or L44640 then you can use…

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Answer 10

Since the Vault Hybrid Lubrication System uses a specific hybrid oil which you did not use when re-greasing your bearings, you will not want to reuse the Vault bearing protectors. Instead I recommend going with the Bearing Buddy bearing protectors,…

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Answer 11

From looking at the pictures you included, it does look like you will need the Bearing Buddy #BB1980A (Chrome Plated) or #BB1980A-SS (Stainless Steel). However, both of these are designed to fit a 1.980" hub bore that is commonly found on…

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Answer 12

The Bearing Buddies that work with the Trailer Hub Assembly, part #8-248-50UC1 are part #BB1980A-SS for stainless steel and part #BB1980A for chrome plated. These fit a hub bore that measures 1.98 inches inside diameter. These come with 2 Bearing…

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How To Measure to Pick Out Correct Bearing Buddy for Boat Trailer

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