Replacement Hub And Drum Assembly For An 8 Lug Hub With 9/16" Studs

Question

Question:

Im looking for a hub/drum assy. for a stock trailer the number cast in to the face of the drum is 030120, and its an 8 bolt with 9/16 studs. is there a cross reference for it in another line.

asked by: Josh B

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Expert Reply:

I am happy to help point you in the right direction. With the information you provided we can certainly narrow it down. I will say that I could not find any references for the part number 030120 that you provided. So we will need to look at a few things in order to determine fitment.

All of the 8 lug hub/drums with 9/16" studs that we carry are rated for either 7,000 or 8,000 lb axles. So confirming the axle capacity would help to narrow down which hub you will need. Generally we also like to confirm the bearing sizes of the current hub.

All of these hubs are going to use the same bearing sizes with a 1.75" ID inner bearing and a 1.25" ID outer bearing. If you are able to confirm the bearing sizes or numbers and the spindle size, that will tell us exactly what will fit. Provided your trailer was made within the last decade or so, it should use the same standard sizing, but it is best to measure and verify. If your trailer does use the standard bearing sizes, you can choose from the following options:

Easy Grease Trailer Hub and Drum Assembly for 7K Axles # AKHD-865-7-1-EZ-K
Easy Grease Trailer Hub and Drum Assembly for 8K Axles # AKHD-865-8-EZ-K

expert reply by: Jesse M

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Answer 1

For hubs that have 1/2" studs, like the Easy Grease Trailer Hub and Drum Assembly for 5.2K - 7K Axles #AKHD-865-7-2-EZ-K you're looking at, you don't want to exceed 120 ft-lbs as that's the most torque this stud size…

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Answer 2

The hub/drum you sent in a picture of is a Lippert 8,000 lb axle hub with an 8 on 6-1/2 inch bolt pattern designed for oil-bath applications. The correct replacement then is the #8-285-10UC3-A.

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Answer 3

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 4

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 5

Based on the GVWR of your 2019 Jayco North Point 315RLTS it does seem like you have 7k axles. I recommend verifying this information to be sure. These axles typically use the #14125A outer and #25580 inner bearing found in the Timken #TMK92VR.…

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Answer 6

After you've packed the bearings and assembled everything, carefully slide the hub assembly onto the spindle and install the outer bearing. Install the spindle and tang washer and run the spindle nut down finger tight, then rotate the hub back…

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Answer 7

Torque specs for wheel lug nuts will vary depending on the diameter of the lugs, type of lug nut and the wheel's material. The linked chart details the recommended torque for many combinations. Dexter Hub/Drum #84546UC3 has 1/2-inch studs and…

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