How To Convert Oil Bath Hubs on 3700 Lb Axle Over to Grease

Question

Question:

I am looking for some help of what i would need to purchase to convert over an oil bath hub from reliable trailer with old seal number 168255TC to grease? This is on a single axle mastercraft boat trailer, 5 lug pattern. Thanks

asked by: Spencer

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Expert Reply:

Converting an oil bath hub to grease couldn't be simpler. Just drain the oil, clean and inspect the bearings and races and pack the bearings with a good quality grease like the LMX # L11390.

The # 168255TB seal you mentioned is typically used by 3700 lb marine hubs which use a # L68149 and # L44649 bearing and a # L68110 and # L44610 race. We offer the replacement races, seals and bearings if you need them.

expert reply by: Mike L

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Answer 1

The correct replacement grease seal for the AD2527E you listed is the part #168233.

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Answer 2

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 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

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 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 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 7

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 8

The UFP H-1377 correlates to a Dexter #84 spindle, which is for a 3,500 pound axle. This will utilize an inner bearing #L68149 and an outer bearing #L44649. As this is being used on a boat trailer, I highly suggest going with the etrailer.com…

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Answer 9

The inner diameters of the LM67048 and 15123 both are the same (1.250 inches). That means that a hub with either bearing in the outer bearing would fit your spindle. The part #AKHD-655-6-EZ-K would fit your axle.

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Answer 10

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 11

You can verify that the 10-19 grease seal included in Bearing Kit #BK2-100 is the correct one for your spindles by taking two measurements. First you want to measure the rear hub bore where the seal is inserted. The seal's outer diameter needs to…

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Answer 12

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…

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How To Convert Oil Bath Hubs on 3700 Lb Axle Over to Grease

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