What Information Do I Need To Determine What Size Bearing Buddies Will Fit My Trailer?

Updated 06/14/2021 | Published 06/11/2021

Products Featured in This Question

Replacement Trailer Hub Bearing - L44649

(2135)

$22.09

Bearing Buddy Bearing Protectors - Model 1781SS - Stainless Steel (Pair)

(1604)

$37.21

4" Carbon Fiber Digital Caliper

(26)

$11.93

Question:

I understand I can probably use bearing buddies on my cargo trailer. I cant find the specs I need: Do you know what size fits my trailer? An imprecise measurement put the outside diameter of the outer seal at about 1.75 thanks

asked by: John Y

Expert Reply:

Unfortunately, I can not tell you exactly what size that you need based on the year and manufacturer of the trailer.

To determine the correct size there are 2 ways to get the information. First if you are able to tell me what size outer bearing is installed on your hub I will be able to find the corresponding bearing buddy for that bearing and race size. To find this number you will need to remove the nut and washer that hold the hub onto your spindle.

The second and easiest option is to use a Digital Caliper # PTW80157 to measure the diameter of the hub bore.

Once you have this information, let me know your measurements and I will be able to identify the correct size for your 2009 Haulmark Transport cargo trailer.

The Bearing Buddy Bearing Protectors # BB1781SS are the closest size to the 1.75" that you gave. These will fit a hub bore of 1.781", and work with the model LM-11949 outer bearing.

expert reply by: Bud M