How to Pick Out Replacement Hubs for a Boat Trailer
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Question:
Heres some information you were requiring about my boat trailer hubs. Are there better bearings to use than national or Timken? Why not use sealed bearings? It seems like it would be less of a messy job. I did get a better measurement on my bolt center for the hub. Both spindles looks to be in about the same condition on top and the bottom of the spindle. I do see tooling marks from the Final Cut when the spindle was made. Should the area where the bearings ride Shine like a mirror? While dressing the spindle I have never purposely tried to get all of the tooling marks out. I wrote down all the numbers I could find on both bearings and I hope that was enough for you. I cant think of anything more to tell you and I hope this solves my problem. Which bearings do you seem to have the most luck with? I can only send one picture thats all the phone will allow me to send. The areas of the spindle where there are no bearings does have rust on them from some time ago. My grease seal seems to be working fine though. Guess I could clean it up a little bit where both of the seals seal against the axle.
asked by: Bruce R
Helpful Expert Reply:
In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. Since the figure you came up with doesn't match any of the 5-bolt bolt patterns I am going to need to to recheck your bolt pattern. For further info on this check out the FAQ article I attached on this.
Next thing you will need to know is what spindle you have on your trailer. In order to do that you can either get the inner and outer bearing numbers from a hub or use a dial caliper to get exact measurements of the spindle. The one number you gave me is actually a race number. I'll need both bearing numbers preferably. The measurements needed are the parts of the spindle where the bearings ride (see pic.)
If you get back to me with that info I will help you pick out a replacement hub. I would recommend just replacing what you have since it sounds like yours are pretty rough and in need of replacing. Nothing normally attaches the backside of the hub to the trailer. The hub moves so if it was attached to the trailer it wouldn't work properly.
I included the picture of your cat for good measure.
Product Page this Question was Asked From
Square #84 Spindle for 3,500-lb Trailer Axles - 1-1/2" Wide
- Trailer Spindles
- Standard Spindle
- 1-1/2 Inch Wide
- Square
- For 3500 lb Axle
- TruRyde
more information >
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on Trailer Spindles
Bruce R.
7/18/2014
Heres some information you were requiring about my boat trailer hubs. Are there better bearings to use than national or Timken? Why not use sealed bearings? It seems like it would be less of a messy job. I did get a better measurement on my bolt center for the hub. Both spindles looks to be in about the same condition on top and the bottom of the spindle. I do see tooling marks from the Final Cut when the spindle was made. Should the area where the bearings ride Shine like a mirror? While dressing the spindle I have never purposely tried to get all of the tooling marks out. I wrote down all the numbers I could find on both bearings and I hope that was enough for you. I cant think of anything more to tell you and I hope this solves my problem. Which bearings do you seem to have the most luck with? I can only send one picture thats all the phone will allow me to send. The areas of the spindle where there are no bearings does have rust on them from some time ago. My grease seal seems to be working fine though. Guess I could clean it up a little bit where both of the seals seal against the axle.