Can Round U-Bolts Be Used On a Square Axle Tube?

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Question:

Is it safe to use round U-bolts on a square trailer axle?

asked by: Shawn A

0

Expert Reply:

You need to use square U-Bolts with having a square axle tube. Trying to use round U-Bolts you risk damaging both the bolts and the axle as it creates pressure points rather than distributing the load across the surface. We have a few different size bolts you can see in the list below.

1-1/2" U-Bolts # SP01-120
1-3/4" U-Bolt # 175130
2" U-Bolts # SP01-160

expert reply by: Bud M

0

Answer 1

Thank you for the photos, though there is only one measurement there so it would be very difficult for me to tell you exactly what you currently have. That said, the most important measurement you can take is of your brake mounting flange, and I…

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Answer 2

Hi Todd, To go with trailer leaf springs that are slightly stiffer than the 4,400 lb rating of your axle you can go with 4,500 lb springs or 5,000 lb springs. The right one is going to depend on the length of your current springs though, as…

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Answer 3

There are no U-bolts to attach the slipper part, I recommend replacing your slipper springs with double eye springs. In order to do this you need to know the weight rating of your axle as well as the length from center eye to center eye so you can…

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Answer 4

The F78/15 stated in modern tire size terms would be a 205/75-15. When you need replacement tires, I'd recommend going with a radial tire because radials do a better job of shedding heat. Excessive heat build-up is the number one cause of…

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Answer 5

When choosing the correct replacement leaf spring for your trailer you will first need to remove the old leaf spring that you currently have on your trailer and measure the unloaded length as well as the construction of the spring (double eye or…

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Answer 6

Good morning Tim! The RV Designer Hitch Pin - 1/2" - Qty 1 #RD83GR measures a little over 3" from the clip hole to the edge of the straight part, just where it starts to bend. So that measurement is the span, and that tells us it'll…

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Answer 7

Hey Jerry, thanks for reaching out. I can help point you in the right direction, but the VIN doesn't do much good in this case because there isn't a universal database for trailers like there is for motor vehicles. Boat trailer manufacturers…

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Answer 8

It's not uncommon for new trailer leaf springs to measure shorter than the old leaf springs they are replacing. The reason for this is that leaf springs stretch as they age. Therefore, I do think the 26" long leaf spring options we offer…

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Answer 9

We currently have two shackle straps that will fit the CE Smith U-Bolt part #CE15502A. For this you can choose from the Shackle Strap part #TRSL313 or part #115208GALV. Both of these shackle straps have a bolt hole to bolt hole measurement of…

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Answer 10

It is possible to mount the springs on top of the axle which is called "flipping the axle". To accomplish this we normally recommend an over-under conversion however there is not one with square u-bolts available for your square axle.…

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Answer 11

I have an option for you, but we do not offer any v bend boat trailer axles at this time. Instead I recommend using the Timbren Axle-less Suspension to replace your axle as it will bolt to the frame of your trailer so you will not need to worry about…

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Can Round U-Bolts Be Used On a Square Axle Tube?

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