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  1. Trailer Hubs and Drums
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  3. 5 on 4-1/2 Inch
  4. For 2000 lbs Axles
  5. Hub
  6. 10 Inch Wheel
  7. 12 Inch Wheel
Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 5 on 4-1/2

Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 5 on 4-1/2

Item # 34822545BX
Our Price: $58.04
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Trailer Hubs and Drums
Shipping Weight: 7 lbs
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Hub is designed for use on trailer idler axles. Fits 2,000-lb axles with BT8 spindles. Inner bearing (L44643) and race, outer bearing (L44643) and race, grease seal, grease cap, wheel bolts, and lug nuts included. For 10" to 12" wheels. Great Prices for the best trailer hubs and drums from Dexter. Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 5 on 4-1/2 part number 34822545BX can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (60)
  • Q & A (0)
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Dexter Trailer Hubs and Drums - 34822545BX

  • 5 on 4-1/2 Inch
  • For 2000 lbs Axles
  • Hub
  • 10 Inch Wheel
  • 12 Inch Wheel
  • Standard
  • 1/2 Inch Stud
  • L44643
  • L44643
  • Dexter

Hub is designed for use on trailer idler axles. Fits 2,000-lb axles with BT8 spindles. Inner bearing (L44643) and race, outer bearing (L44643) and race, grease seal, grease cap, wheel bolts, and lug nuts included. For 10" to 12" wheels.


  • Trailer hub assembly fits idler axles
    • Bearings, races, seal, grease cap, wheel bolts, and lug nuts are included
  • Sturdy iron construction
  • Made in the USA


  • Application: 2,000-lb trailer axles with BT8 spindles
  • Wheel size: 10" to 12"
  • Bolt pattern: 5 on 4-1/2"
  • Grease cap flange diameter: 1.986"
  • Wheel bolt diameter: 1/2"
  • Weight capacity: 1,000 lbs

Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: L44643 (1" inner diameter)
    • Outer bearing: L44643 (1" inner diameter)
  • Races (included)
    • Inner race: L44610
    • Outer race: L44610
  • Grease seal (included): 34823
    • Inner diameter: 1.249"
    • Outer diameter: 1.983"

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"

H34822545BX Dexter Trailer Idler Hub Assembly for 2K Axle with Hardware - 5 on 4-1/2 - L44643 Bearings

Customer Satisfaction Score:

Customer Reviews

Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 5 on 4-1/2 - 34822545BX

Average Customer Rating:  4.7 out of 5 stars   (60 Customer Reviews)

Hub is designed for use on trailer idler axles. Fits 2,000-lb axles with BT8 spindles. Inner bearing (L44643) and race, outer bearing (L44643) and race, grease seal, grease cap, wheel bolts, and lug nuts included. For 10" to 12" wheels.


These hubs worked great. I had to add the spindle nut washers to get good engagement between the spindle nut and cotter pin. I would definitely buy these again.


There was a problem with the initial order I received and it was promptly handled by the polite and helpful customer assistant. These parts worked great for a single bike takedown trailer.


Hubs not made by dexter and not made in US. No reason to pay extra for these over other Chinese hubs. Would have returned but etrailer was slow to ship and I was leaving for a trip and couldn't wait.

Etrailer Expert

Brooke M.


It looks like you may have been sent the wrong part by mistake. I am sending this along to our customer service team to make sure that they reach out to you.


Ordered two hubs, only one arrived. Second tracking number says it was never picked up. Now I have to wait 8 days for an investigation before I can get a replacement part. Upgraded the shipping so I could receive and work on trailer during the holiday break. No blame, just stating what happened.


Made 4 800 mile trips to date with absolutely no problems. I would buy them again


The hub was very easy to install. The only problem I had was installing the wheel bearing hubs. It took many tries to get them on.


Smaller, bearing on the backside came out once I open the package

Etrailer Expert

Jenny N.


Oh my goodness! I will have our Customer Service team reach out to you.


I wanted to change from four lug wheels and tires to five lug type on my boat trailer. Towed trailer,loaded with fishing gear,fuel tanks, extra motor. and batteries from central Pennsylvania to Fort Peck, Montana and back. The trip was uneventful. Other than the was GREAT!
Your new hubs made my trip successful.


Fit perfectly


these are great hubs. my trailer had tiny 4 bolt hubs and wheels and these fit perfect on the 1" spindles and allowed me to run a much taller tire. even comes pregreased with plenty of grease


I have ordered from e-trailer twice. Both times they provide excellent service! Parts arrived amazingly fast!! One order had a damaged part, I called and got a very nice sales rep. Parts were replaced FREE. I will deffinatly order from them again. I ordered hubs, wheel and tires, and light kit for my boat trailer. All parts are good Quality.


Good product fair price. Packaged well. No missing parts.


Hubs went on without any trouble. Only tricky part was to get the caps seated into the hub to trap the grease. Haven't used the trailer yet, but don't anticipate any problems. Shipping was awesome. I ordered with standard shipping and the box was on my porch the next afternoon.


Put on trailer brand new again hubs bearings all good fast shipping will deal with you again thanks


I initially ordered a pair of hubs from another online retailer That I has used prior and whom had mine "in stock". They didn't. After 5 days of no shipping info, they notified me they were back ordered. I cancelled the order.

I ordered a pair of these hubs from on 6/2, George notified me on 6/3 that they shipped and I received them on 6/6. That's customer service.

Price, availability and delivery. Every online retailer should strive for this level of attention..


The hub I ordered for my trailer worked perfectly!!!!!! The customer service is unreal, from fast shipping to constant checks(personal emails) to see if item had arrvied on time, truly a professional company that puts their customers above all. I never write reviews put this company definetly earned it, Thanks and I will be back!!!


Not only is the product exactly what we needed (the dust caps are a little on the lightweight side) but Matthew was extremely helpful in getting me the parts I needed to fix my trailer!


Product as great and eTrailer was prompt with the delivery.


Perfect fit. Bad old trailer bearings? Buy the complete hub!


I am just starting on a restoration of a 40 plus year old motorcycle sidecar and the hub and wheel that I ordered are perfect for this project. I will try to send pictures on completion, probably a few months out.


I have a bent part. I received it that way.


fit perfect,
great website I easily
found what I needed,
seems well made,
the outside dust cover was hard to install (I had to fiddle with it)


absolutely the best customer service ( George) and the fastest transit times - have been using them for years - never a problem


Great price, fast shipping, and customer service is professional. I will continue buying from etrailer. Thanks for your business.


I was pleased with the quality and timely shipping.

Show More Reviews

See what our Experts say about this Dexter Trailer Hubs and Drums

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    More than likely your tire blow out was due to the age along with the current heat here in the summer. I'm not sure how old they were exactly but a tire typically lasts 3-6 years. A tire blowout typically comes from excessive heat from underinflation, overloading, exceeding the speed rating, or flat spots/sidewall rubbing. Considering the fact that you took the trailer to a shop for replacement parts, and also had them double check once you noticed the heat, I would say you have nothing...
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  • One Trailer Brake Assembly Heats Up But Stops When Brakes Are Disconnected
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  • How to Determine Bearing Dimensions to Select Replacement Trailer Hub
    My bearing cross reference does not include the Bower bearing numbers BT1151 and T09074 so in order to see if we have a hub that uses compatible bearings you'll want to measure your spindles at the points C and D shown in the linked image. These are the points on the spindle where the inner and outer bearings ride. You will need a precision digital caliper, so that you can measure precisely to the nearest thousandth of an inch, such as 1.234-inches. A new hub must use tapered roller bearings...
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  • How Tight Should Spindle Nut On Dexter 7000lb Axle Be?
    When you say "Slack" what exactly do you mean? It is normal and required for the bearings to have some slack to allow the wheel to turn without too much friction, and you should be able to rock the hub back and forth and feel slight movement. When installing the hub you should tighten the spindle nut all the way and then back it off one to two notches back. That sounds like how you have it so it should be about right. Just make sure you are not having an abnormal amount of hub movement. I...
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  • Spindle Nut Torque For Installing Trailer Hub that Won't Cause Hub to Heat Up
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  • Are the Bearings and Seal for the Dexter Trailer Idler Hub Dexter Brand
    The included bearings and seal with the Dexter Trailer Idler Hub Assembly, # 34822545BX, were included with the hub from Dexter. Therefore, the bearings and seal are Dexter approved parts. Dexter does not manufacturer their bearings and seals for there hubs, but use the highest quality products from vendors with their products.
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  • Trailer Hub Assembly Must be Put Together and Packed with Grease
    The trailer hub assembly, part number, 34822545BX, comes with the race attached to the hub. The seal and bearings are not attached. Those parts must be assembled and packed with grease prior to installing the cap. I have attached a FAQ sheet for wheel bearings and two videos for your review.
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  • Hub Recommendation for Spindle that is 1 inch in Diameter and has 5 on 4-1/2 inch Bolt Pattern
    What you listed is compatible with a BT8 2,000 lb axle. That means that the part # 34822545BX would be what you need.
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  • Troubleshooting Oil Bath Hub Running Hot
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  • Hubs and Wheel Bearings Keep Working Loose Causing Play in the Wheels
    It sounds like the problem you are having is related to one of the possibilities you have mentioned. It is nearly impossible to press a race in straight at home unless you have the proper equipment and have done it before. Taking the drums to a brake shop might be the best option to make sure the races are seated properly. If they are seated properly then it is possible that the hub bore could be off causing the races to get out of position. The solution would be to replace the drums. If...
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  • Should Spindle Be Replaced After Wheel Came Off Weekend Warrior Tri-Axle Trailer
    Now would be a really good time to have the entire system inspected by a qualified shop. If the lug nuts were not tightened properly that could cause the wheel to come off the trailer. The bearing should have been inspected for obvious signs of wear or damage as well as the spindle. If the hub came off with the wheel and tire I imagine the threads on the spindle have been damaged. I would have someone inspect the entire system and replace or repair anything that is worn or damaged. Since...
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  • Where to Measure on Trailer Spindle to Pick Out Replacement Hub
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  • Troubleshooting Overheating Hubs on a Trailer With New Bearings and Grease
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  • Troubleshooting Trailer Brake Assembly that Is Hotter Than Others and Dragging Brake
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  • Why Would Trailer Hub Get Hot When Leaking Grease/Oil
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  • Troubleshooting Trailer Hub that Gets Warms
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    Image 1 for
  • At What Point Does Heat On Bearings and Hubs Become Excessive
    It looks like you were referring to a previous question regarding excessive heat on the hubs and brakes during travel. If you were getting over 200 degrees that would be a bad sign. But typically if all of the hubs are the same temperature you're good and it's only really an issue if one of the hubs is hotter than others. There are cases where on long trips you'll run 150-160 degrees without blinking an eye on a hot day. You will want to make sure that you're regularly greasing your bearings...
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