Need Replacement Trailer Idler Hub for 3500-lb Axle Using Outer Bearing # L44649

Question

Question:

I have a 3500lb-rated 1.25inch axle that measures 1.063 on the outer wheel face bearing surface, and1.228 on the inner bearing surface. The inner grease seal I.D. is 1.25. My outer bearing is labeled L44649 FLT-8. I cannot extract the inner bearing to determine what it is. What hub and/or bearings can I use?

asked by: Darryl

0

Expert Reply:

If your current axle is rated at 3500-lbs and your hubs use a 5-on-4-1/2 bolt pattern and outer bearing # L44649, then we have two options for replacement hubs. These hub kits include the hub and wheel stud assembly, lug nuts, grease seal, pre-installed inner and outer races, inner and outer bearings, and a grease cap.

It is usually very hard to measure used grease seals since by the time they are removed from the spindle they can become deformed or misshapen. Original part numbers are always the best method for identifying replacement parts. Also, please note that typically a 3500-lb axle will have a larger diameter than the 1.25-inches you mention. We do offer 1.25-inch spindles, part # TRU44FR for example, but these are for 2000-lb-rated axles.

Based on your quoted 3500-lb capacity, if you axle has EZ-Lube spindles you can use part # 84545UC1-EZ. If it has standard spindles you can use part # 84545BX.

Both hub kits are suited for use with 3500-lb axles, 5-on-4-1/2 bolt pattern wheels from 13-inches to 17-1/2-inches, both use the same bearing set (L44649 outer and L68149 inner) and both use a grease cap with an outer diameter of 1.986 inches. I have linked product review videos for both hub kits.

If you need wheel bearing grease we offer # L54FR, and if you want to simplify re-packing your new bearings we offer the LubriMatic Deluxe Bearing Packer # L70025. A linked video illustrates use of this handy device.

expert reply by: Adam R

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Answer 1

For a bearing kit that matches the bearing numbers and races you mentioned you would want the part #BK1-150 which includes the races and seals you'd need. You'd need a kit of these for each hub that gets replaced.

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Answer 2

Yes, hubs use different size bearings for the inner and outer bearings pretty frequently. The inner bearing will be the bigger size if there are two different size bearings.

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Answer 3

Your boat trailer is most likely equipped with a 2500 lb axle given its GVWR which would mean your boat trailer very likely uses an L44643 inner and outer wheel bearing. But because there isn't an online reference that would allow me to look up…

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Answer 4

We will have several different pre packed hub assemblies for you to choose from depending on if you need a hub for drum brakes or hubs for an idler axle. Here is a list of hubs for both drum and idler axles in the different bolt patterns that use the…

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Answer 5

Thanks for that detailed information and we have exactly what you need with Bearing Kit #BK2-100. This kit includes Bearings #L44649 and #L68149, Races #L44610 and #L68111, along with Grease Seal #58846. This kit is for 3,500 lb hubs like yours,…

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Answer 6

In order to find the correct replacement hub and spindle you will need to know the capacity of your axle along with the bearings you currently have. In order to find the size of the bearings you can look for part numbers on your existing bearings. If…

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Answer 7

We recommended to repack the wheel bearings on your trailer every 12 months or 12,000 miles. There is not a specific guideline as far as actually replacing the bearings. When repacking them with grease, you will also just want to check for any damage…

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Answer 8

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

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Answer 9

The number you provided, "7753400" is a patent number which corelates to the Equalizer for E-Z Flex Suspension part #013-144-03. This is for a single equalizer but if you need the entire kit it's the Dexter E-Z Flex Suspension Kit part…

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Answer 10

For your enclosed trailer application I have several suggestions for adding interior lighting that you can control directly via a switch. Since your current 4-pole trailer wiring does NOT include a 12V auxiliary power feed that could power inside…

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Answer 11

The only way you could power interior dome lights on a trailer without it being connected to a tow vehicle would be to power the lights with a battery like a breakaway battery. How you choose to wire up the batteries will in the end be up to you, but…

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Answer 12

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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