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  1. Trailer Hubs and Drums
  2. etrailer
  3. 5 on 5 Inch
  4. For 3500 lbs Axles
  5. Hub
  6. 13 Inch Wheel
  7. 14 Inch Wheel
  8. 14-1/2 Inch Wheel
  9. 15 Inch Wheel
Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 5 - Pre-Greased

Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 5 - Pre-Greased

Item # AKIHUB-550-35-K
Our Price: $36.76
Trailer Hubs and Drums
Shipping Weight: 9 lbs
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Hub is designed for use on trailer idler axles. Fits 3,500-lb axles with #84 spindles. Inner bearing (L68149) and race, outer bearing (L44649) and race, grease seal, grease cap, and lug nuts included. Great Prices for the best trailer hubs and drums from etrailer. Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 5 - Pre-Greased part number AKIHUB-550-35-K can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (76)
  • Q & A (0)
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etrailer by AxleTek Trailer Hubs and Drums - AKIHUB-550-35-K

  • 5 on 5 Inch
  • For 3500 lbs Axles
  • Hub
  • 13 Inch Wheel
  • 14 Inch Wheel
  • 14-1/2 Inch Wheel
  • 15 Inch Wheel
  • Pre-Greased
  • Standard
  • 1/2 Inch Stud
  • L44649
  • L68149
  • etrailer

Hub is designed for use on trailer idler axles. Fits 3,500-lb axles with #84 spindles. Inner bearing (L68149) and race, outer bearing (L44649) and race, grease seal, grease cap, and lug nuts included.


  • Trailer hub assembly fits idler axles
    • Bearings, races, seal, grease cap, and lug nuts are included
  • Sturdy iron construction
  • Zinc-enriched paint finish
  • Pre-greased idler hub is easy to install - no need to pack bearings
    • Lithium complex, multipurpose grease keeps bearings lubricated
  • QAI and CSA certified


  • Application: 3,500-lb trailer axles with #84 spindles
    • Compatible with standard axles from most manufacturers, including Dexter, Lippert (LCI), and AL-KO
  • Wheel size: 13" to 15"
  • Bolt pattern: 5 on 5"
  • Wheel stud dimensions: 1/2" diameter x 1-5/16" long
  • Grease cap flange diameter: 1.988"
  • Weight capacity: 1,750 lbs
  • Limited 1-year warranty

Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: L68149 (1.378" inner diameter)
    • Outer bearing: L44649 (1.063" inner diameter)
  • Races (included)
    • Inner race: L68111
    • Outer race: L44610
  • Grease seal (included): 58846
    • Inner diameter: 1.719"
    • Outer diameter: 2.565"

Determining the Bolt Pattern

The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.

Bolt Pattern - Even

On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: 8 on 6-1/2 means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)

Bolt Pattern - Odd

To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: 5 on 4-1/2 means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)

Bolt Pattern - Side

Measuring the distance (D) from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.

  • If D = 2-5/8", then the bolt pattern is 5 on 4-1/2"
  • If D = 2-3/4", then the bolt pattern is 5 on 4-3/4"
  • If D = 3", then the bolt pattern is 5 on 5"
  • If D = 3-1/4", then the bolt pattern is 5 on 5-1/2"

KH-550-07-19 AxleTek Trailer Idler Hub Assembly for 3.5K Axle with Hardware - 5 on 5 - Pre Greased

Compare to Dexter 84550BX

Customer Satisfaction Score:

Customer Reviews

Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 5 - Pre-Greased - AKIHUB-550-35-K

Average Customer Rating:  4.8 out of 5 stars   (76 Customer Reviews)

Hub is designed for use on trailer idler axles. Fits 3,500-lb axles with #84 spindles. Inner bearing (L68149) and race, outer bearing (L44649) and race, grease seal, grease cap, and lug nuts included.


Product easy to install only thing wrong they don’t send you a new castle nut or cotter pin. So don’t throw the old ones out first set of bearings I ever got without new ones with it


I had an extremely hard setup and the customer service was great. However, the outer bearing and race were wrong. Sadly, the only info I had was for the outer bearing and race. Kudos for guessing the correct inner and even the grease seal size. Doesn't really count though as the the info I was able to provide missed the mark badly. Like 1/4" badly.

Etrailer Expert

Brooke M.


I am wondering if the wrong assembly was sent. Are you able to tell me color the dot is on the hub?


I ordered a trailer hub and when it arrived the one in the box was not what the label had on the outside of the box. It was the wrong part -in the correct box. I contacted etrailer to let them know what happened and they very quickly responded and asked for measurements and pictures. I took a few pictures with the tape measure and sure enough, the part somehow got put in the wrong box. The parts I got was brand new and had all the pieces, it was just the wrong size. etrailer quickly sent out a replacement hub and I got it today. The part is now correct. It is new and in new condition with all the pieces as described. I could not be more happy on how well the customer service was on this issue. In the future I will certainly buy from etrailer again. Thanks everyone for the great service.


So far so good, even with the extra stress of the wide wheels. I even bought an extra hub to keep in the tool box for a road side repair.



Still working great. It has been across several states, rough highways and dirt roads. Can’t complain.


Easy install


Perfect fit for my 5x12 trailer! The ordering and shipping process was great. Preston was great in matching my old hubs to the new ones. This was my first hub replacement job and I was done in an hour.
Will be a repeat customer!!!!


I was sent a 5 on 4 3/4 hub in a 5 on 5.0 box. I found this after spending 2 hours turning the spindle they sent on a lathe to match what was supposed to be sent. Next time I will machine my own parts.

Etrailer Expert

Brooke M.


Thank you for bringing this to our attention. I will have our customer service team reach out to you.


Customer service was awesome and I received my parts on time.


I bought these as spares to carry on trips. After having a bearing failure while towing my race car I became a big believer in having spares. I now replace bearings/races every other year as preventive maintenance even if they look ok. Bearings are all made in China so I think quality varies, regular maintenance is a must. The price is awesome compared to the local trailer dealer for the same product. etrailer is awesome great prices and fast shipping.


Great service fast shipping


The part, (5 on 5" hubs), worked perfectly, and were priced well and delivered on time. The only down side to my order is that we first accidentally ordered a complete axle assembly, hub-to-hub with 5 on 4.5" bolt pattern instead of the aforementioned 5 on 5". We called to get the right hubs sent and thought we could return the unused 5 on 4.5" hubs. Since we packed the bearings and mounted the hubs on the axle, we were told they were now used and could not be returned. They had not made one revolution on the spindle or borne any weight/load. I now have two small boat anchors. I'm very disappointed that we could not clean all the parts and return them. All of this occurred while stranded 250 miles from home while towing a tractor on our flatbed trailer. The new axle and hubs were installed while parked on a gravel road and we're traveling home as I write this. Again, the parts are working well, but the customer service part of the deal could have been better by allowing a return of the hubs we could not use.


Product was exactly like it was advertised...very pleased


Just what I needed, and got here dast!!


Great Part


Excellent value! I can't say enough good things about eTrailer. Awesome and helpful website, great products, best prices, excellent customer service.

This product allowed me to replace the bad bearings on my trailer in about a half hour. No cleaning old grease out of hubs, no trying to get old races out, and all for the price other places will charge for bearings alone!

I had a slightly rare 5 on 5 bolt pattern, which was impossible to find in local stores. No problem at eTrailer! They always have a great selection and get it to me very quickly. I've finally learned not to waste my time shopping around and to just come here first!


Really pleased with the quality of the hubs. Terrific value! And amazing customer drive to boot!


Easy to navigate web site and timely sh ipping.


I have received all four hubs, it was the exact match for our application. Everything came as expected. Service is prompt, nice folks to deal with even on the phone.
I am a repeat customer.
I gave it 5 star, however if I had done a bit more research on the website for whole package with EZ grease part and new axle nut and hardware it would have been great but its my fault I got exactly what I ordered according to the part numbers.
I am pleased with etrailer.


Received 5 on 5 hub today and it fit perfectly. I first ordered a 5 on 4 3/4 hub and it was wrong. I had measured the bolt pattern across the hub from center to center stud for 3500 lb axle. That is the way we did it back in the day 30 years ago. Well after talking to Jamie at etrailer she explained I was wrong and had me measure stud to stud beside each other also and explained I needed 5 0n 5.She was very professional and very detailed and had me measure several times to make sure I received the right hub. Well she was right and it fit perfect. I will be buying all my trailer parts from etrailer from here on. Jamie your the the best. Its hard to find people who care or even try to help with anything anymore but Jamie acted like she had all day to help me. Thanks again


Finally found the right part at etrailer!! Thank you! This hub isn't common at the parts stores and I couldn't find it locally. Comes with everything you need. You'll have to grease the bearings yourself so have some packing grease handy. I'd share pics but I already fixed the trailer and put it back outside in the cold :)
Oh, and the part came a day earlier than I expected. Thanks for that too!


excellent representation, courteous and a pleasure doing business with you. I will use you company in the future and recommend it to others without even thinking twice.


Ended up having to replace axle after ordering hub and spindle. Excellent order help, fast customer service. Everyone sells parts. It's the other elements of service that count. etrailer worked like that for me.


As always, my order was exactly what I needed for a long trip to ensure a problem free trip. The quality is good.

Mike B.


After many thousands of miles, still a good trouble free product. It makes traveling worry free.


i replaced the four hubs and bearings on my trailer. i only took two hours thanks to the instructional videos. everything went smooth.


Arrived in two days ground. Super easy to install. Took more time packing the bearings by hand than all the rest of the job. I had to replaced the other side because the bearings went out. Wasn't sure which hub I ordered. Called etrailer and the lady was very helpful and was able to look up my last order and confirm the hub I ordered. Great service.

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