What Is the Difference Between a BTR and BT8 Spindle

Question

Question:

Hi. Im wanting to buy new wheel hubs for my utility trailer. Seems I will need a BTR or a BT16 wheel hub but I dont understand the difference in these two hubs. Can you please explain?

asked by: William C

0

Expert Reply:

The BTR and BT8 denotations refer to the spindle, not the trailer hub. The difference between a BTR and BT8 spindle is that the BTR spindle uses a 1.063" diameter L44649 bearing and the BT8 spindle uses a 0.99" diameter L44643 bearing. In order to find out which you have you will need to pull the hub and either measure the spindle or look for the bearing numbers on the bearing.

If you have BTR spindles then you can use part # AKIHUB-440-2-2K.

expert reply by: Conner L

0

Rich

8/5/2020

What wheel bearing size do I need for a 2000 trail star trailer?

Reply

Chris R.

8/14/2020

In order to determine the right replacement bearings you will need to actually pull one of the hubs and see if you can read the numbers stamped inside the bearings themselves. If not, you can measure the spindle where they sit to get their inner diameter. If you can let me know either piece of info I will be happy to recommend the correct replacements.

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Brad

10/20/2024

@ChrisR I measure my spindle and it is 1.01" in on digital zeroed caliper. Which should I use, BTR or BT8?

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Answer 1

A BT8 spindle would have a diameter of .99 of an inch where the bearings would both install and would have a diameter of 1.24 where the great seal would ride. That would require a hub part #AKIHUB-440-2-1K for an idler hub. A BTR spindle would have…

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Answer 2

I would be happy to help! Unfortunately we do not have a breakdown of the specific components for your Spartan Sport Trailer, so you will need to remove one of your hub assemblies. With the hub assembly removed you will need to look on the face of…

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Answer 3

BTR and BT8 are the reference numbers for a standard trailer spindle size. When picking out a hub for a trailer you have to make sure that the hub is designed to fit the spindle. What you will need to do is measure spindles on your trailer where the…

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Answer 4

Your Dexter 8-259 #8-259-5UC1 will use the Bearing Kit #BK1-150 for each hub. I recommend filling the bearings with the Grease #L11390 when you install them.

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Answer 5

Hey Andrew, Yes, the Dexter Trailer Idler Hub Assembly for 2,000-lb Axles #8-259-5UC1-EZ would be a direct replacement for a Dexter 8-259 trailer hub assembly.

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Answer 6

The Dexter Trailer Hub Assembly you referenced, part #AKIHUB-440-2-1K is known as an idler hub. An idler is a hub that is no provisions for trailer brakes. It has no brake drum. Part #8-276-5 is an example of a hub/ drum that has a brake drum that…

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Answer 7

I have attached a chart you can check out that describes the torque needed per wheel size, wheel stud size and material. For an 8-inch wheel with a 1/2-inch wheel stud the torque is 75 to 86 ft-lbs. For a 15 inch steel wheel with 1/2 inch wheel studs…

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Answer 8

Yes, the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire #AM10140 referenced in your question will fit the same 12 inch wheel with a 4 inch width that your existing 4.80-12 size tires are mounted to. Just note that the ST145/R12 tire will be…

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Answer 9

There are a few different ways to make sure that you are getting the correct hub to match your spindle like the wheel bolt pattern, bearings, and weight capacity. You can either use a Digital Caliper #PTW80157 to measure the different sections of…

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Answer 10

Yes, 14 gauge wire seems too small. I would go with 10 or 12 gauge. For 10 gauge you can use #10-1-1 and for 12 gauge use #12-1-1. These wires are sold in increments of 1 foot. So if you needed 20 feet of wire you would enter 20 in the quantity box.…

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Answer 11

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 12

The most cost effective way to get the nut retainers is to get the part #BK2-100 and then instead of using the cotter pins use the part #RG05-100 instead. The kit for your hub isn't available and by the time you piece all of the components…

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What Is the Difference Between a BTR and BT8 Spindle

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