How to Find Correct Replacement Bearings for 2003 Roadmaster Enclosed Utility Trailer

Question

Question:

I have a 2003 Roadmaster 6 x 10 enclosed utility trailer. Havent done any maintenance on it since 2009 havent had any problems. Im going cross country and want to either change the bearings and or hubs because its probably time. Any advice? and how do I tell what hub and or bearings I need. Thanks a lot.

asked by: Mark P

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Expert Reply:

It is a good idea to go through your trailer's hubs and bearings to make sure everything is in good shape before your cross-country trip. The easiest way to find the correct replacement bearings, races and seals is to use the part numbers from the original parts that are on the trailer now. Please refer to the linked photo that shows the typical location and appearance of these part numbers.

We offer many popular combinations of bearings, races and seals as kits, but the individual parts are also available if we don't have a complete kit with the correct parts for your trailer. The linked page will allow you to choose your bearings by part numbers if you can find them, or you can take precise measurements of the spindle (at the points noted in the photo) and then find bearings that fit those spindle dimensions. You can choose a complete hub kit like the # 84655UC1-EZ that you referenced if you want new hubs too. You'll need to match your bolt pattern, axle weight rating and bearing set to install new hubs.

Let's say you need a bearing kit for a 3500-lb axle that uses inner bearing # L68149 and outer bearing # L44649. For this combination we offer kit # BK2-100 that includes one inner bearing and race, one outer bearing and race, grease seal, cotter pin and tang washer.

We offer bearing grease # L54FR and a packing tool # L70025 to simplify packing your new bearings. A helpful article and video are linked for reference.

expert reply by: Adam R

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Answer 1

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 2

Yes, the temperatures you mentioned are normal. If you were getting over 200 degrees that would be a bad sign. But typically if all of the hubs are the same temperature you're good and it's only really an issue if one of the hubs is hotter…

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Answer 3

I recommend the LubriMatic LMX Industrial Strength Grease #L11390 for your Dexter axle on your 2021 Vista Cruiser Travel Trailer. This grease is specifically formulated to work in extreme hot and cold temperatures under high pressures. It is also…

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Answer 4

Red grease is considered to be the most heavy duty and waterproof grease out there so we recommend it highly for boat trailers. My honest recommendation would be to continue using the red grease like with part #L11390 but if you wanted to remove all…

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Answer 5

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 6

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 7

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 8

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 9

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

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Answer 10

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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Answer 11

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 12

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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