Depth Measurement For Hubs That Fit A 1" Straight Spindle

Question

Question:

I am looking for a trailer hub for a 1inch diameter spindle that is 3 3/4 inches long from the inner bearing landing to the end of the threads. It is for an old Sterling boat trailer that only has the wheel with casalated nut and cotter pin.

asked by: Doug R

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Expert Reply:

We do have hubs available for a 1" straight spindle in part # AKIHUB-440-2-EZ-1K. This hub measures 4-1/4" deep so it will run a bit longer than the hub you are looking for. There are a total of 4 hubs that we carry for a 1" straight spindle and all 4 would be identical as far as depth. A lot of these older boat trailers use hubs that are trailer specific, and it may prove very difficult to find.

We do carry replacement spindles like part # TRU59FR, if you want to change it out for a more "standard" spindle. You can use that with the hubs # AKIHUB-440-2-G-EZ-1K. The spindles can be tricky to install and you would want to take your trailer to a professional welder or axle shop.

We also have replacement axles if that is something you want to look into. I would want to confirm the length of the current axle, but something like part # e25GR would be a potential replacement. This axle is 60" long from hub face to hub face and is rated for 2,000 lbs.

I can also provide the cotter pin # 165649 and castle nut # 165686 if you are in need.

expert reply by: Jesse M

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Answer 1

The standard hub for a 10" wheel and 4 on 4" lug pattern is going to either have #L44643 bearings and a 1" diameter spindle, or an #L44649 bearing and a 1.063" spindle. Once you've determined which one you have then you'll…

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Answer 2

You could go to a larger tire size on the trailer as long as there is enough room all around the existing tires for the larger size. Going from a 4.80-8 to a 5.30-12 is a pretty big jump. The 5.30-12 is about 5.8 inches taller and about 0.5 inches…

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Answer 3

Without knowing the bolt pattern and tire and wheel size, you will need to take some measurements of the tires that are currently on the trailer. Measure the tire's diameter and width. Also, you will need to determine the proper bolt pattern on…

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Answer 4

The two bearings you mentioned have different inner diameters. The #L44643 has an inner diameter that is exactly 1 inch and the #L44649 is 1.06 inch. This may not seem like a lot but it's a big enough difference to prevent the hub you have now…

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Answer 5

Where are you measuring the 3-3/4 inches from? Just the portion that is 1 inch? With or without the threads? If the measurement of the spindle where it's 1 inch in diameter is 3-3/4 inches without the threads being factored in yes, the hub part…

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Answer 6

From my research on the Harbor Freight 4x8 folding trailer uses 4.80-12 tires on a 12 inch wheel for the 1195 lb capacity trailer and a 5.30-12 for the 1720 lbs capacity trailer. It is a good idea to check your existing tires to see which size they…

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Answer 7

The power that the 12 volt battery on your trailer receives from the 7-way connector is enough to maintain its charge, however it will not be sufficient for charging the battery back up after use. The voltage drop you experienced from charging your…

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Answer 8

The best option for you to provide a maintenance charge on your trailer battery would be to upgrade to a 7-way trailer connector on both the vehicle/trailer and then run a wire from the connector to the battery on both the vehicle/trailer. In order…

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Answer 9

In order to charge the battery in your trailer, you will need to run a wire from the 12 volt circuit on your vehicle to the positive post of your trailer batter. This will allow you to keep the battery charged, though if the battery is dead, you will…

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Answer 10

You will need to measure your spindle with a Digital Caliper #PTW80157 to find the bearing and grease seal sizes(see image). The information I was able to find shows that your spindle may use the Bearing #L44643 with a 1" spindle or it will use…

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Answer 11

It sounds like you have an older style trailer axle with the short spindles. You will need a new Spindle #TRU44FR to mount on your axle as the short hubs are now obsolete. This will allow you to use the what is now standard length spindle dimensions.…

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Answer 12

If you are needing the hub and drum assembly then you will want to go with the Dexter Trailer Hub and Drum Assembly #8-201-5UC3-EZ but if you are just looking for an idler hub then you will want part #8-213-5UC1 instead. These come with the correct…

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Depth Measurement For Hubs That Fit A 1" Straight Spindle

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