How to Determine Correct Bearings Without The Bearing Numbers

Question

Question:

I do not have the old inner wheel bearing to get the number from, I have the outer. This is a 1971 Sterling boat trailer, with the outer bearing number can you determine the inner bearing size?

asked by: George

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Expert Reply:

Sometimes on smaller axles the bearings can be the same for the inner and outer however that is not always the case. I recommend to measure the spindle to determine the bearing. If you can provide me with the number of the outer bearing and the measurement for position C in the diagram I can help you further. I would also need to know the measurement of position B on the diagram as well for the grease seal.

expert reply by: Heather A

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Answer 1

A replacement hub for your older trailer must use the same bearing set as the original hub. This ensures the hub will fit properly on your spindles. The hub kit you referenced, part #AKIHUB-440-2-1K, uses bearing #L44643 as its inner and outer…

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Answer 2

In order to find the correct replacement hubs for your Shoreland'r boat trailer, you need to first know what bearings your current hub has. You will need to take apart your current hub assembly and look at the bearings themselves; wipe away the…

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Answer 3

Are you positive that the bearing number you have is 15126? That is not a standard bearing number and based on the other bearing you have it sounds like you would need the part #BK3-100. If the inner diameter of the 15126 is 1.250 and the matching…

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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

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 6

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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Answer 7

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 8

Hey Richard, thanks for reaching out! The Dexter DX7.5 Drop-N-Go Brake Actuator #099-175-00 is a great option for a replacement actuator because it's a direct replacement for the common Model 60 actuators that were popular in the '90s.…

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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

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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Answer 12

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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How to Determine Correct Bearings Without The Bearing Numbers

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