Spindle Measurement of Part # TRU47FR

Question

Question:

I have taken my hub off the axle and measured surfaces B, C and D and E and they correspond with part no. TRU47FR. This is the spindle for the T4843100 Brake kit. I need to know where the F measurement is taken.

asked by: Ray

0

Expert Reply:

The F measurement is the length of the square portion of the spindle stub, which can either slide into the end of the axle and be plug welded in place or more commonly welded to the bottom of the axle tube.

As long as the spindle is going on a 3500 lb axle and the rest of the dimensions match (B, C, D and E), it is not so important that the F dimension match perfectly, just as long as it is not dramatically shorter than the spindle it replaces.

expert reply by: Mike L

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Answer 1

Rather than trying to assemble axles from tubing and spindles, I'd highly recommend you go with a manufactured axle. Having a manufactured axle will provide you with a known weight capacity. Welding spindles to an axle tube is a very specialized…

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Answer 2

Square axle capacities are pretty hard to determine. Unlike round axles, they do not have set capacities based on their dimensions. Based on the bearings your hub looks like it's rated for 3,500 lbs. Most likely that would be the same rating as…

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Answer 3

I had our warehouse measure the #84 E-Z Lube Spindle w/ Brake Flange for 3,500-lb Trailer Axle - 1-3/4" Diameter #TRU74FR you were looking at and from the front of the brake mounting flange to the tip of the spindle measures 5-3/8", and…

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Answer 4

Square axles can be tough to determine capacity. Often times the same spindle fits a range of axle capacities. The best way to determine the capacity is to get the inner and outer bearing numbers stamped into the metal of the bearings. Going by those…

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Answer 5

In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. This is so you get a hub that is compatible with your…

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Answer 6

In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. Since the figure you came up with doesn't match any of…

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Answer 7

To replace a spindle, the old one would need to be cut off, and the new one welded into place. This is NOT a job for the do-it-yourselfer. The new spindle must be absolutely square with the axle in order to prevent premature tire wear and wheel…

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Answer 8

There are two spindle sizes that are commonly used for a 2,000lb trailer axle. First is the 1" BT8 Spindle #TRU94FR that you would use with the Easy Grease Trailer Idler Hub Assembly #AKIHUB-545-2-LFEZ-1K. This hub has an outer pilot diameter of…

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Answer 9

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

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Answer 10

I agree it is the right time to upgrade to a Lithium charger/converter as not all are Lithium compatible. I recommend using the Progressive Dynamics Mighty Mini AC/DC Panel and Converter/Smart Charger - 60 Amp #PD4060K which is a replacement for your…

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Answer 11

Based on my research, the Trailer Hub and Drum Assembly - 8,000-lb E-Z Lube Axles #AKHD-865-8-EZ-K will be a replacement for the 90865 Rockwell hub and drum. Both of these hub and drum assemblies are 12-1/4" diameter, have an 8,000 lb capacity,…

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Answer 12

Seal 171255UC has an inner diameter of 1.719 inches and outer diameter of 2.565 inches. A seal that has those dimensions would actually be #58846. I've added a link to a video review of this seal for you to take a look at.

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Spindle Measurement of Part # TRU47FR

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