Will Replacement Grease Seal 21325 Fit an Old Star Line Axle

Question

Question:

I have an old Star Line axle I need a couple seals for. The od is 3.25 3.26 x 2.25 on axle spindle. It also has goodyear stamped into the hub. There is also a 4097 stamped one place. Will the 21325 seal work for me?

asked by: Glenn F

0

Expert Reply:

The Grease Seal # 21325 you're looking at has an inner diameter of 2.125" and an outer diameter of 3.269". It looks like the outer diameter will work for your Star Line axle but the inner diameter looks to be a bit too small.

The only other seal that's close to your size is the Grease Seal # GS-2250DL which has a 2.250" inner diameter, but the outer diameter is 3.376" so it won't fit either.

I recommend double checking your dimensions just to make sure, and if neither of these grease seals match then you'll either have to find a place that makes custom grease seals or we'll need to look into getting you a different spindle or axle that works with more standard sizes.

expert reply by: Jon G

0

Answer 1

The interesting thing about Dexter 7k axles is that they could come with two different grease seals with the only difference being the inner diameter of the seal. If the inner diameter is 2.25 inch you'd want the part #10-63 or if it's 2.125…

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Answer 2

Based off the information you have provided me I was able to narrow down your options to two. Since you have a 7k Dexter axle you will need either a 2.25 ID grease seal or a 2.125 ID grease seal. Grease Seal - Double Lip - 21325 item #21325 Grease…

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Answer 3

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 4

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 5

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 6

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 7

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 8

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 9

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 10

Depending on how the trailer was made, there will be a few spots you can check to identify the axle. First, if the trailer was pre-made by a specific company, you may be able to find this information in either the paperwork or on a placard somewhere…

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Answer 11

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 12

In order to verify the spindle dimensions so that you can pick out the correct hub/drum you have to get exact dimensions. For that you need to use a digital caliper like part #PTW80157. For how old your trailer is this is especially important as the…

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Will Replacement Grease Seal 21325 Fit an Old Star Line Axle

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