Replacement Grease Seal for National 29031

Question

Question:

Have a older trailer, working on wheel bearings National #5970 3.00 O.D. 1.875 I.D. .375 width with a inner spacer that reduces the I.D. to 1.500, seals are in ok shape but inner spacer s/b replaced. Also need dust cap 2.250 which seems to be also hard to find. Thanks

asked by: Randy G

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Expert Reply:

For a replacement seal for a 5970 you'd need the part # 29031. We don't have a dust cap that fits a 2.25 inch hub bore.

expert reply by: Jameson C

0

Answer 1

Hey Ken, thanks for reaching out! The correct part you need is the Tekonsha Plug-In Wiring Adapter #3024-P for your 2025 Ram 1500. This is a pretty new fit listing which is why you're having trouble finding a confirmation on what you need.

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Answer 2

Based on what I can find it shows the National seal 5970 is the same as the Timken 203034 which I see has an outer diameter of 3" and an inner diameter of 1.875". The only seal we have which meets these dimensions is the Seal #29031. You…

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Answer 3

For your 1779 outer and 2788 inner bearings you will want the following parts. Replacement Trailer Hub Bearing - 1779 item #1779 Replacement Trailer Hub Bearing - 2788 item #2788 The closest seal we have to a National 5970 is item #29031 which has an…

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Answer 4

So after quite a bit of research it seems that the Trostel 300-156-6 seals you mentioned are quite old and have not been around for some time. The best I could find was that they are 3.00" in outer diameter, and I did manage to find a customer…

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Answer 5

I have a solution for you but we do not have any standard grease caps with a 2.24" diameter like the #RG04-020 . I recommend going with the Bearing Buddy Bearing Protectors #BB2240 which will not only protect your bearings but provide an easy,…

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Answer 6

It sounds like you have the older hub 22834 that is no longer in production that takes the outer bearing of part #1779 and inner bearing of part #2788. I was not able to find any other bearings that measure .093" inner diameter besides 1779 or…

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Answer 7

I did some research and found that the 2,600 lb Hub, #22834, takes the #1779 outer bearing and #2788 inner bearing and would use the #29031 grease seal. This hub has a 6 bolt on 5-1/2 inch bolt pattern. This sounds like the hub you have, and…

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Answer 8

I can't find any info on the seal you referenced but the seal part #29031 that you referenced has an inner diameter of 1.875 inch and an outer diameter of 3 inch. If those two dimensions match you'd be set.

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Answer 9

You can check the condition of your hub's races by carefully removing all bearing grease with a rag to expose the actual surface of the races. When they are completely free of grease, etc., inspect them for any signs of scoring (very slight…

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Answer 10

We do have the Replacement Trailer Hub Bearing #2788 that installs on a hub using the Race #2729, but the only hub we've confirmed a fitment with this on an older discontinued hub made for 5.2K axles with a 6 on 5-1/2" bolt pattern. Over the…

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Answer 11

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 12

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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Replacement Grease Seal for National 29031

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