Hub size

Bearing buddies

Trailer related issues and discussion goes here.
Markb63
Posts: 33
Joined: 07 Sep 2017, 23:08
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Hub size

Post by Markb63 »

How do you find the right size bearing buddy for a boat trailer? If measure then can you please tell me how. Tyvm

lckstckn2smknbrls
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Joined: 05 Oct 2008, 12:14
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Location: Algonquin Il

Hub size

Post by lckstckn2smknbrls »

Do you know what size bearings the hubs use? Generally the outer race of the outer bearing will be the same size as the correct bearing buddy.
A 1" and 1-1/16 bearing use the same outer race 1.98". A 3/4" bearings outer race would be 1.78" A 1-3/8" x 1-1/16" hub would again be 1.98".
1971 14' Ward's Sea King Jon Boat / 1983 Mariner 25HP

Markb63
Posts: 33
Joined: 07 Sep 2017, 23:08
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Hub size

Post by Markb63 »

No I dont know. I've never changed them so don't know exactly and dont know how to find out

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LDUBS
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Joined: 14 Aug 2016, 22:25
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Location: Clayton California

Hub size

Post by LDUBS »

If you cannot get the wheel bearing part number, then use a measurement of the inside diameter of the hub to determine which bearing buddy to get.

This is from eTrailer's Q&A. They also have a video showing how to take the measure if needed.

"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."

PS: If you remove the hub completely you might be able to read the outer bearing part number -- assuming your bearing has the part number is etched on the surface.
Last edited by LDUBS on 25 Jun 2020, 12:51, edited 1 time in total.
Have Rod - Will Fish

lckstckn2smknbrls
Posts: 4413
Joined: 05 Oct 2008, 12:14
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Location: Algonquin Il

Hub size

Post by lckstckn2smknbrls »

Markb63 wrote:
25 Jun 2020, 11:16
No I dont know. I've never changed them so don't know exactly and dont know how to find out
Might be a good time to service the trailer. Inspect, repack or replace the bearings, races and seals.
1971 14' Ward's Sea King Jon Boat / 1983 Mariner 25HP

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LDUBS
Posts: 2901
Joined: 14 Aug 2016, 22:25
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Location: Clayton California

Hub size

Post by LDUBS »

lckstckn2smknbrls wrote:
25 Jun 2020, 12:49
Markb63 wrote:
25 Jun 2020, 11:16
No I dont know. I've never changed them so don't know exactly and dont know how to find out
Might be a good time to service the trailer. Inspect, repack or replace the bearings, races and seals.

^^ Ounce of prevention.
Have Rod - Will Fish

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kdgrills
Posts: 90
Joined: 12 Jun 2015, 10:41
5

Hub size

Post by kdgrills »

If you have 1.980, I have a pair I'll give you,
for the price of shipping.

Markb63
Posts: 33
Joined: 07 Sep 2017, 23:08
2

Hub size

Post by Markb63 »

I sent you a pm. My email is markb63@live.com. if thats better
Tyvm

Markb63
Posts: 33
Joined: 07 Sep 2017, 23:08
2

Hub size

Post by Markb63 »

This is pic of spec. Can anyone please read that of the small inside diameter.

Tyvm
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kdgrills
Posts: 90
Joined: 12 Jun 2015, 10:41
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Hub size

Post by kdgrills »

I cleaned up the above mentioned freebies.
These are for a 1.980 hub.

They're older generic models that have been
on & off several trailers, but they work fine afaik.

You're probably better off just buying new.
Shipping is probably $10ish , I see several generic
models on Amazon for $15ish

Let me know if you're still interested.
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