How to Measure a Spindle to Determine the Bearing Numbers to Find the Correct Replacement Hubs

Question

Question:

how to measure the spindle size?

asked by: Rick A

0

Expert Reply:

To find replacement hubs you'll need to measure your spindles where the inner and outer bearings sit using a digital caliper like # PTW80157.

In the picture I've attached the locations are C and D. You may also be able to determine the bearings you have based on the bearing numbers stamped into them if you still have the bearings and can read the numbers.

expert reply by: Charles S

0

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Answer 1

Yes, the two Dexter hubs you mentioned part #8-219-13UC3 and #42866UC3-EZ are interchangeable. The difference is that the #8-219-13UC3 has 9/16 inch studs and the other hub has 1/2 inch diameter studs.

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Answer 2

Judging by your photo, your trailer would use an idler hub, not a hub drum. Assuming you have 5 lug on 4-1/2 inch bolt circle wheels that use an #L44649 inner and outer wheel bearing, you have a few choices. Rather than the painted hub, I'd…

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Answer 3

The #8-258-50UC1-EZ Idler Hub Assembly you referenced includes the grease cap for an EZ Lube spindle. An EZ Lube spindle has a zerk fitting in the end of it so grease can quickly and easily be added to the hub. The rubber plug in the center of the…

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Answer 4

Hey Greg, yes the Aluminum Hi-Spec Series 04 Star Mag Trailer Wheel #AM20258 that you referenced would work with a Load Range E tire ST175/80R13 like you mentioned.

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Answer 5

Trailer wheel bearings are specific to the spindle that is installed on the axle that is on your trailer. You will need to safely support the trailer, remove the wheel and tire, remove the grease cap, remove the cotter pin and washer that secures the…

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Answer 6

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 7

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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Answer 8

The #84 spindle is just a common way to identify the spindle dimensions typically used for 3,500 lb axles. So instead of listing out the parts, people can just say they have #84 spindles and it's easier to know what fits it. The CE Smith Trailer…

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Answer 9

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 10

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 11

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 12

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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How to Measure a Spindle to Determine the Bearing Numbers to Find the Correct Replacement Hubs

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