How to Determine Axle Weight Capacities on a Trailer

Updated 09/29/2011 | Published 09/27/2011

Question:

I have a trailer with 1.5inch x 1.5inch solid steel square axle. What would the cap be on this axle. Yes this is a OLD trailer. OLD but Good.

asked by: Paul

Expert Reply:

The axle capacity should be stamped on the frame of the trailer near the coupler of the trailer. It also could be listed somewhere on the axle. I wish there was an industry standard weight capacity for the 1.5 inch by 1.5 inch square solid steel axles but there is not.

If you do not see a weight capacity listed in either of those places you can remove the hubs on your trailer and give me the bearing numbers that are listed on the spindles. I will be able to tell which hubs and spindles you have and then give you the weight capacities for those components.

I attached a video on how to remove and reinstall a trailer hub for you to check out also.

expert reply by: Jameson C