Spindle Recommendation for Hub that Uses Inner and Outer Bearing L44649

Question

Question:

I have a new replacement hub for my trailer that I purchased at tractor supply. All the dimensions are correct for my trailer except for the length of the spindle. The new hub has L44649 bearings and the hub and bearings are for a 1inch diameter spindle. Do you have a spindle that will work with this hub and bearing combo? The axle is round and 1-3/4inch o.d. I need to replace the spindle the original is trashed due to a bearing failure. It appears by my measurements my spindle is a1/2inch too short for this new hub kit. Thanks

asked by: Mike M

1

Helpful Expert Reply:

Based on your hub having two of the L44649 bearings that would mean you need a BTR spindle like the part # TRU44FR.

To replace a spindle, the old one would need to be cut off, and the new one welded into place. This is NOT a job for the do-it-yourselfer. The new spindle must be absolutely square with the axle in order to prevent premature tire wear and wheel tracking problems. I would recommend finding a welder who is experienced with trailer axles. Your local RV dealer or repair facility could probably refer you.

expert reply by: Jameson C

1

Answer 1

The amount of bow that's put into trailer axles like the #7359765 is based on about how much a trailer is typically going to weigh that has a 3,500 lb capacity. So there's a bit of approximation and obviously it can't be…

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Answer 2

I checked with Trudyde, and I was able to find out that the bar stock material used to make the spindle is hot rolled SAE 1045 steel, which allows the spindle to harden to an extent. The spindle needs to retain a slight amount of flex to retain its…

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Answer 3

With trailer axle components there isn't typically a way to know what you need before getting into the hub/spindle area. Basically you'll need to remove your old one first and determine if you need the 1-1/4 inch BT8 part #TRU94FR or…

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Answer 4

The BTR style of spindle like the part #TRU44FR has bearing surfaces that are both 1.06 inch in diameter. That's probably the closest we have to a straight spindle in the capacity of 2,200 lbs like you want. 1.00 inch for the threaded…

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Answer 5

What you describe isn't normal. Trailer axles are manufactured with a bow or crown in them, a slight arc with the high side on the top of the axle. When the trailer is loaded, the axle will straighten out so the tires make even contact with…

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Answer 6

Trailer spindles are welded directly to the axle so to remove one it just needs to be cut off completely using a torch or saw. Then to replace the spindle such as with the EZ Lube #TRU37FR that you were looking at it's extremely important…

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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

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 9

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 10

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 11

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 12

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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Spindle Recommendation for Hub that Uses Inner and Outer Bearing L44649

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