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  1. Trailer Hubs and Drums
  2. Dexter Axle
  3. 8 on 6-1/2 Inch
  4. For 5200 lbs Axles
  5. For 6000 lbs Axles
  6. For 7000 lbs Axles
Dexter Trailer Idler Hub Assembly for 5,200-lb to 7,000-lb Axles - 8 on 6-1/2 - Galvanized

Dexter Trailer Idler Hub Assembly for 5,200-lb to 7,000-lb Axles - 8 on 6-1/2 - Galvanized

Item # 8-231-50UC1
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Trailer Hubs and Drums
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8-231-50UC1 - 14125A Dexter Axle Hub
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Galvanized idler hub assembly is great for marine use. Fits 5,200-lb, 6,000-lb, and 7,000-lb idler axles with #42 spindles. Inner bearing (25580) and race, outer bearing (14125A) and race, grease seal, grease cap, and galvanized lug nuts included. Lowest Prices for the best trailer hubs and drums from Dexter Axle. Dexter Trailer Idler Hub Assembly for 5,200-lb to 7,000-lb Axles - 8 on 6-1/2 - Galvanized part number 8-231-50UC1 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Dexter Axle Trailer Hubs and Drums - 8-231-50UC1

  • 8 on 6-1/2 Inch
  • For 5200 lbs Axles
  • For 6000 lbs Axles
  • For 7000 lbs Axles
  • Hub
  • Standard
  • 16 Inch Wheel
  • 16-1/2 Inch Wheel
  • 17 Inch Wheel
  • 17-1/2 Inch Wheel
  • 1/2 Inch Stud
  • 14125A
  • 25580
  • Dexter Axle

Galvanized idler hub assembly is great for marine use. Fits 5,200-lb, 6,000-lb, and 7,000-lb idler axles with #42 spindles. Inner bearing (25580) and race, outer bearing (14125A) and race, grease seal, grease cap, and galvanized lug nuts included.


Features:

  • Marine-grade trailer hub assembly fits idler axles
    • Includes bearings, races, grease seal, grease cap, and zinc-coated lug nuts
  • Zinc plating has a 500-hour salt spray rating
    • Ideal for use on a boat or snowmobile trailer
    • Durable enough for saltwater applications
  • Hub and drum are made in the USA


Specs:

  • Application: 5,200-lb, 6,000-lb, and 7,000-lb axles with #42 spindles
  • Wheel size: 16" to 17-1/2"
  • Bolt pattern: 8 on 6-1/2"
  • Wheel bolt dimensions: 1/2" diameter x 2-1/4" long
  • Grease cap flange diameter: 2.446"
  • Weight capacity: 3,500 lbs


Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: 25580 (1.75" inner diameter)
    • Outer bearing: 14125A (1.25" inner diameter)
  • Races (included)
    • Inner race: 25520
    • Outer race: 14276
  • Grease seal (included): GS-2250DL
    • Inner diameter: 2.25"
    • Outer diameter: 3.376"

Corrosion Resistance for Marine Use

This trailer hub assembly has a zinc coating that resists corrosion, making it ideal for use on your boat or snowmobile trailer. All GAL-DEX hubs undergo a test in which they are sprayed with a 5-percent salt solution to determine corrosion resistance over time. These products are able to withstand 500 hours of constant exposure to the saltwater mist. This 500-hour salt spray rating indicates that a product is not only durable enough to last in freshwater environments, but it can also be used on trailers that come into contact with saltwater.


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"


8-231-50UC1 Dexter Trailer Idler Hub Assembly for 5.2K, 6K, and 7K Axle with Hardware - 8 on 6-1/2 - GAL-DEX





Video of Dexter Trailer Idler Hub Assembly for 5,200-lb to 7,000-lb Axles - 8 on 6-1/2 - Galvanized

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Dexter Axle Trailer Hubs and Drums - Hub - 8-231-50UC1 Review

Today we're going to review part number 8-231-50UC1. This is the Dexter Trailer Hub Assembly for 5200 pound to 7000 pound axles. It is an 8 on a 6 1/2 inch bolt pattern and it has a GAL-DEX finish. This hub assembly is a galvanized marine grade trailer hub assembly that fits on Idler axles. It includes everything showing here, the bearings, the races which are pre-installed into the hub, the double lift grease seal, the grease cap and the lug nuts. This trailer hub assembly has a GAL-DEX zinc coating that helps resist corrosion and it makes it ideal for use on your boat or snowmobile trailer and it's durable enough for salt water applications.

All of the GAL-DEX hubs are able to withstand 500 hours of constant exposure to the salt water mist and this 500 hours salt spray rating will indicate that a product is not only durable enough to last in fresh water environments but it can also be used in the salt water environments. Again the application on this hub assembly is 5200 pound, 6000 pound and 7000 pound axles. Again, the bolt pattern, as you can see, is an 8 on 6 1/2 inch bolt pattern. The wheel studs themselves are a 1/2 inch diameter and they are 2 1/4 inches long and they are zinc plated just like the hub assembly. The weight capacity on this one assembly is 3500 pounds, so when used with another one on the other side will get you your maximum capacity of 7000 pounds. It comes with these bearings.

The inner bearing right here, that's marked part number 25580. The inner bearing is the larger bearing of the two. If you notice, it goes on the inside, you'll see the race is pre-installed. The inner bearing would sit right into that race. Take your double lift grease seal, then you would tap that in to hold everything into place.

This is after you've lubed your bearings. You move to the front and again you'd have this bearing lubed, this is the outer bearing part number 140125A. Again, you'll see the race is pre-installed, the outer bearing would drop right into place. On the front, when you slide this over the spindle, the spindle would come through, put your washer on, put your nut, tighten it down to specs, then you'd be ready to go. Take your grease cap, tap that right into place, and then you're all set. All you would have to do is then use the included 8, and again these are zinc coated lug nuts, 8 of them, that you can use to put your wheel tower assembly onto your hub.

These are 1/2 inch design, so again you just put your wheel tower on, tighten it down using these 1/2 inch size lug nuts. That should do it for the review on part number 8-231-50UC1, the Dexter Trailer Hub Assembly for 5200 pound to 7000 pound axles with the 8 on 6 1/2 bolt pattern. .


Customer Reviews

Dexter Trailer Idler Hub Assembly for 5,200-lb to 7,000-lb Axles - 8 on 6-1/2 - Galvanized - 8-231-50UC1

Average Customer Rating:  4.0 out of 5 stars   (1 Customer Reviews)

Galvanized idler hub assembly is great for marine use. Fits 5,200-lb, 6,000-lb, and 7,000-lb idler axles with #42 spindles. Inner bearing (25580) and race, outer bearing (14125A) and race, grease seal, grease cap, and galvanized lug nuts included.

by:

I ordered two hub assemblies with the bearing races installed, and upon receiving them, found a couple of races pitted and rusted; as well as one lug nut missing (The reason for the four stars is for quality control). Understandably, E-trailer simply asked for a few pictures of the races; and sent replacements out; no questions asked. Can't argue with service like that. They are a company that will make every effort to earn your business and repeat business.


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Ask the Experts about this Dexter Axle Trailer Hubs and Drums

  • Difference Between Trailer Hubs that are Lug Centric and Hub Centric
    It is easy to tell which type of wheel you have on your boat trailer. Lug centric wheels slide onto studs on the hub and are secured with lug nuts, like a car tire. If a wheel is hub centric, the wheel centers on the hub and bolts are threaded into the hub to secure the wheel. Every one of the hubs we offer with an 8 on 6-1/2 inch bolt pattern is lug-centric. See attached link to see them all.
    view full answer...
  • Grease Leaking from E-Z Lube Spindle and Hub
    There are a couple things that may be causing an E-Z Lube spindle to leak grease. There could be a bit too much grease # L11390 and the excess is coming out, or the grease cap or grease seal of a hub like # 8-231-50UC1-EZ is not fitting properly or possibly damaged, causing the grease to leak out. It may also be the grease zerk is a bit loose but unless it's an excess of grease it's not something to be overly concerned about. You can check the zerk for that, but otherwise just keep an...
    view full answer...
  • Recommended Galvanized Idler Hubs For Timbren Axle-Less Trailer Suspension 7000lbs
    For the Timbren Axle-Less Trailer Suspension - Drop Spindle w Brake Flange - Regular Tires - 7K # TASR7KS02 we have a couple options for galvanized metal idler hubs. I recommend the Trailer Hub Assembly for 5,200-lb to 7,000-lb Axles - 8 on 6-1/2 - Galvanized # 8-231-50UC1 or the Trailer Hub Assembly for 5,200-lb to 7,000-lb E-Z Lube Axles - 8 on 6-1/2 - Galvanized # 8-231-50UC1-EZ. The EZ hubs give easier access to grease the bearings of your system.
    view full answer...
  • Timbren Axle Less and Hub Recommendation for 8 Lug Bolt Pattern and 4 inch Lift
    The 8 lug bolt pattern you are looking for is only available on higher capacity hubs than 3,500 so the parts you mentioned Timbren kit part # TASR5200S03 with hub part # 8-231-50UC1-EZ are exactly what you need for the added ground clearance and bolt pattern.
    view full answer...
  • Replacement Idler Hubs For A 7,000 Pound Axle With 9/16 Inch Studs
    When it comes to replacing your Idler Hubs on your 7,000 pound axle with 9/16 inch studs, The Easy Grease Trailer Idler Hub Assembly for 7K Axles - 8 on 6-1/2 # AKIHUB-865-7-1-EZ-K will work for you. This trailer hub assembly includes everything you will need to install. They have a sturdy iron construction, and have a zinc-enriched paint finish. These hubs are compatible with standard axles from most manufacturers, including Dexter, Lippert (LCI), and AL-KO. The hubs will fit a wheel...
    view full answer...
  • Replacement Spindle And Hub For 6,000 lb Axle on Boat Trailer
    The information was helpful, thank you, and spindles are replaceable, they just need to be welded on by a qualified professional. In regards to the hub, there are a couple of options, depending on your current hub's bolt pattern. Basically, just if your current wheels fit hubs with 6 lugs or 8 lugs. So for a replacement spindle and accompanying hub for a 6,000 lb axle, here is what you will need: - #42 E-Z Lube Spindle with Flange for 5.2K to 7K Trailer Axles # TRU37FR - 6 on 5-1/2"...
    view full answer...
  • Upgrading Hubs From 6 Bolt to 8 Bolt for 5,200 lb Axles
    We have 2 different options for you to use to upgrade your 5,200 lb axles from 6 bolt to 8 bolt with 1/2 inch studs. Dexter Axle has the Trailer Hub Assembly, part # 8-231-9UC1-EZ, which is black in color and comes with the hub, inner bearing, part # 25580, outer bearing, part # 14125A, and the seal that you will be needing. This Trailer Hub Assembly also comes in a Galvanized Hub, part # 8-231-50UC1-EZ. Similar options that include the drums, in case you have brakes on your trailer,...
    view full answer...
  • Availability Of Timbren Heavy-Duty Axle-Less Suspension 3500lb ASR35HDS01
    We sure do! You can visit the product page of the Timbren Heavy-Duty Axle-Less Trailer Suspension - Straight Spindle - Off-Road Tires - 3,500 lbs # ASR35HDS01 by clicking on the part number in this question. This Timbren Axle-Less Suspension is the Heavy-Duty version which means even though it has a 3500lb rating, it is made out of thicker metal than the standard version and uses 5200-7000lb hubs instead of 3500lb hubs. For hubs you can use Idler hub # 8-231-50UC1-EZ which has the 8...
    view full answer...
  • 7,000 lb Trailer Axle 6 To 8 Lug Hub Conversion
    We have what you need to upgrade your 7,000 lb trailer axles but there are some things that we need to take a look at. Check your ID seal on your spindles. If they require a 2-1/8 inch seal, your wheel size is 16 to 17-1/2 inches and you have a 12 inch brake assembly, then you can use the Dexter Trailer Hub Assembly # 8-219-9UC3. This is for 5,200 to 7,000 lb axles. Now, for your idler axle, if it is a 5,200, 6,000 or 7,000 lb axle and has #42 spindles, you can use this Dexter Trailer...
    view full answer...
  • Which Spindle Fits Dexter Hub # 8-231-50UC1-EZ
    The spindle you need with the Dexter hub part # 8-231-50UC1-EZ you referenced is the number 42 spindle part # TRU37FR. The agricultural hub you referenced would not fit.
    view full answer...
  • Is Trailer Hub # 8-231-50UC1-EZ Designed for Use with Trailer Brakes
    The hub part # 8-231-50UC1-EZ that you referenced is an idler hub. If you were looking for a similar hub that is setup for use with trailer brakes you would want the part # AKHD-865-7-G-EZ-K. Then if you needed brake assemblies you would want the part # AKEBRK-7R-SA for the right hand side and part # AKEBRK-7L-SA for the left hand side.
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Lisa S
Written by:
Lisa S
Employee Alexander C
Updated by:
Alexander C
Employee Mike S
Updated by:
Mike S

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