How to Identify Axle Weighty Capacity Based on Axe Diameter and Bearing Set Used In Hubs

Question

Question:

Have older alko axels that have 6 bolt hold on torque plate .. and has 2 5/8 inner bearing with 2 in outer bearing with single piece Hub bearing assembly ?? I cant find info on this axel

asked by: Barry

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Expert Reply:

An axle's weight rating can often be approximated based on its diameter. Typical trailer axle ratings based on diameter are shown below.

1,000-lb - 2,000-lb Axles: 1-1/2" - 1-3/4" diameter
3,500-lb Axles: 2-3/8" diameter (Can have a 3-1/2" diameter, but rarely)
6,000-lb - 7,200-lb Axles: 3" diameter
8,000-lb Axles: 3-1/2" diameter
9,000-lb Axles: 4" diameter
10,000-lb Or more axles: 5" diameter

If you can pull one of the hubs and remove the inner and outer bearings to get their part numbers this too can help determine the hub and axle weight ratings. The linked article on trailer bearings lists the most common bearing parts used for a range of axle weight ratings. For instance, if your inner bearing is part # 25580 your axle is likely to be rated for 5200-lbs, 6000-lbs or 7000-lbs.

expert reply by: Adam R

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Answer 1

For a Dexter EZ Lube Spindle 5,200 lb capacity part #8-201-9UC3-EZ the bearings needed are #25580 and #15123. We have a bearing kit that has these as well plus the races and a new seal #BK3-110.

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Answer 2

The most common mistake when replacing a trailer leaf spring is measuring the existing leaf spring while the trailer is loaded (wheels on the ground) and not accounting for the leaf spring lengthening over time. Therefore, it sounds like the new leaf…

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Answer 3

The only way to tell the capacity of a torsion axle, if you cannot find any markings on the axle itself to identify it, is to remove the hub and check the bearing numbers. You will then be able to reference the hub bearing numbers to the rating of…

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Answer 4

You will need Hub Drums that have the hub built into the drum. For part #23-47 you will need 7 inch Hub Drums, like part #8-173-16UC3 and mounting flanges, part #4-34, that will need to be welded to your axles. This size brake and hub drum assemblies…

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Answer 5

We do carry the exact brakes that you need for your B12E-02 AxleTek 12-GG Axle. For the Left Assembly you will want part #AKEBRK-7L-SA and for the Right Hand assembly you will want part #AKEBRK-7R-SA. These brake assemblies are made by AxleTek and…

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Answer 6

It looks like your trailer's axle rating with an inner wheel bearing #25580 and an outer bearing #LM67048 is 5,200 lbs. If you have 3 of these axles, then your capacity will be 15,600 lbs. You can measure your current equalizer so you can find…

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Answer 7

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 8

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 9

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are marked…

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Answer 10

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 11

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

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Answer 12

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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How to Identify Axle Weighty Capacity Based on Axe Diameter and Bearing Set Used In Hubs

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