Trailer Brakes for 12 Inch Hub and Drum

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Question:

my trailer has 12 inch drums on will this fit on there the exs. brakes are 3 3/8 inch wide

asked by: Steve S

0

Expert Reply:

The Electric Trailer Brake with Dust Shield - Self-Adjusting # AKEBRK-8R have an 8,000 lb capacity and measure 12-1/4 inches in diameter and 3-3/8 inches wide so that is the dimension your drum would need to be. These fit a 4-bolt mounting flange such as # 4-50 and would require Mounting Hardware # BRKH122508.

If you have 12 inch drums there are options for that, the Electric Trailer Brake Assembly - Self-Adjusting # AKEBRK-7L-SA (Left) and # AKEBRK-7R-SA (Right) which are 12 inches in diameter and 2 inches wide and have a capacity of up to 7,000 lbs. These fit a 5-bolt mounting flange such as # 4-44-1 and would require Mounting Hardware # BRKH12S.

The correct electric brake assembly is going to depend on your drum size and axle capacity. If you have 12 inch drums, the larger 12-1/4 inch brakes will not be able to fit. I have added links to video reviews for you to check out as well.

expert reply by: Kyle S

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Answer 1

Electric brakes such as Electric Trailer Brake Kit #AKEBRK-8 do not fit specific axles. These are 8,000 lb rated brakes with a 4-bolt mounting flange pattern and are 12-1/4" diameter x 3-3/8" wide, so you would need that mounting…

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Answer 2

For your 8-285 hub and drum similar to the Dexter Hub and Drum, Oil Bath #8-285-9UC3 for 8K pound axles, the Dexter Electric Brake Assembly, Right Hand #23-435 and Left Hand #23-434 are the correct fit brake assemblies for your axle. Another great…

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Answer 3

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 4

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 5

The 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

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Answer 6

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Answer 7

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 8

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 9

Since both a ST145/R12 size tire, like the Kenda Karrier S-Trail #AM10130, and a 5.30-12 size tire, like the Kenda K353 #AM10068, fit a 12 inch wheel, a ST145/R12 size tire can replace a 5.30-12 size tire. Keep in mind that these tires do have…

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Answer 10

Your math is correct in your trailer weight load example. If a fully-loaded tandem axle trailer weighs 4000-lbs then each of the 4 tires will bear 1/4th of that load, or 1000-lbs. In this case a tire rated for 1300-lbs would provide a good safety…

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Answer 11

You can convert surge brakes to an electric over hydraulic braking system. To do this, you will need an electric over hydraulic actuator and a brake controller. For an electric over hydraulic actuator, I recommend looking at the Carlisle HydraStar…

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Answer 12

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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Trailer Brakes for 12 Inch Hub and Drum

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