Where to Measure on Trailer Spindles to Determine Replacement Hubs
Updated 06/26/2024 | Published 11/24/2014 >
Question:
Can you tell me where I should take the measurements on the spindle to determine what hubs I need.It is a 3500lb trailer axle. I want to replace the 2 hubs. The inner bearing is L68149 and the outer is LM12749. These bearings are from a brake rotor on the trailer even though the trailer doesnt have brakes, thus the reason why I want to switch over to hubs. Thanks for your help.
asked by: Denis
Expert Reply:
You will need to measure the diameter of the spindles where the seal and bearings ride. Check out the picture I attached that shows where this is. You will need an exact measurement so either a digital or dial caliper will be needed.
To pick out the correct hubs you will also need to determine the bolt pattern of the hubs you currently have so that the new ones will be compatible with your current hubs. I attached an FAQ on how to determine this.
If you get back to me with that information I will help you pick out the right hub assemblies. Or, you can follow the link I attached that will take you to the page that has all of our replacement hubs.
You would want to first select the bolt pattern that you have, next select the inner bearing you have, followed by selecting your outer bearing, and then all the correct hubs will be listed.

Eric H.
5/6/2024
Is there another picture to go with this illustration? What’re the locations/names of the letters referenced above?




Matt M.
6/26/2024
Hello, Would you be able to help me select the correct hub for my trailer? old wheel size: R15 Stud pattern: 5 on 4.5" Spindle Grease seal diameter: 1.63" (1" 5/8) or 4.1cm spindle inner race diameter: 1.25" or 3.2cm Sindle outer race diameter: .75" or 1.9cm And could you help with the correct bearing sizes? - My old bearings I pulled off my trailer: outer bearing- #09067 Tyson, inner bearing- #15123 Tyson Thank you for your time! Matt

Product Page this Question was Asked From
Square #84 Spindle for 3,500-lb Trailer Axles - 1-1/2" Wide
- Trailer Spindles
- Standard Spindle
- Without Flange
- L68149
- 1-1/2 Inch Diameter
- Square
- For 3500 lb Axle
- TruRyde
more information >
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Scott
2/19/2024
Is there away I can you call?my name is Scott a I have a hub issue that I need to explain it to an expert. 7065805974