How to Pick out a Replacement Seal for a Trailer Hub

Question

Question:

Hi, When I measure the outside diameter of the grease seal it is slightly over two inches. The dimension given for the replacement seal is slightly under two inches. Am I missing something?? Thank you,

asked by: Gary

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Expert Reply:

You will need to get the inner and outer dimensions of your seal or the number off of it to pick out the correct seal. If the seal of the Bearing Kit part # DL21792 does not match what you have then I would not recommend it for you. You may find that your bearings and seals do not match one of the bearing kits we offer. In that situation you will just need to piece together what you need.

I attached a link to a page that has all of the seals we offer. Select your inner and outer diameter from the facets on the left of the screen.

expert reply by: Jameson C

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Answer 1

It sounds like your hubs use L44649 bearings which have an inner diameter of 1.063 inches which is 1-1/16 inches. There is a bearing kit with these bearings, #BK1-150. The kit comes with a 10-60 seal that has a 1.5 inch inner diameter. The hubs…

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Answer 2

Trailer tires that are the same size but with different load ratings will have different capacities. A load range C tire will have a higher capacity than a load range B tire of the same size. The Kenda 4.80-12 Bias Trailer Tire with 12 Inch White…

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Answer 3

Your math is correct in your trailer weight load example. If a fully-loaded tandem axle trailer weighs 4000-lbs then each of the 4 tires will bear 1/4th of that load, or 1000-lbs. In this case a tire rated for 1300-lbs would provide a good safety…

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Answer 4

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 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

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 7

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 8

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 9

Well shackle length is mainly based on the height difference between the front and rear hangers. The rear hanger normally doesn't hang as low as the front so that the shackle can offset the difference and add the ability to move. What is…

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Answer 10

To correctly measure a leaf spring, you'll want to jack the trailer up on jack stands so the axle is hanging freely, then measure directly across from the center of one spring eye to the other, as shown in the provided diagram. The height of…

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Answer 11

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 12

Thank you for providing the specs for the suspension components that you already have. Correct hanger spacing really depends on the components being used such as springs, hangers and equalizers. Most of the hanger spacing dimensions that we have…

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How to Pick out a Replacement Seal for a Trailer Hub

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