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Replacement Trailer Hub Bearing - 15123
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Replacement Trailer Hub Bearing - 15123

Part Number: 15123
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Trailer Bearings Races Seals Caps
15123 - Race 15245 etrailer Trailer Bearings Races Seals Caps
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High-quality, tapered roller bearing is designed for high-speed use. Replacement part uses industry-standard number. Great Prices for the best trailer bearings races seals caps from etrailer. Replacement Trailer Hub Bearing - 15123 part number 15123 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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etrailer Trailer Bearings Races Seals Caps - 15123

Highlights

  • High-Speed Compatibility: Designed for high-speed use, perfect for trailers on highways.
  • 1.250" Inner Diameter: Standard size ensures a perfect fit for 5,200 to 7,000 lbs axles.
  • Industry-Standard Number: Uses the trusted 15123 number for reliable part replacement.
  • Perfect for RVs: Ideal for RV hubs, like Lippert 6,000 lb axles, ensuring smooth towing.
  • Optimized for Heavy Loads: Suitable for 10k pound trailers, ensuring durability and strength.
  • Upgrade and Repair Ready: Great for modernizing or fixing older trailer models.

Features to know about

Precision Matching: Industry-Standard Tapered Roller Bearing

When it comes to replacing trailer hub bearings, precision is key. The Replacement Trailer Hub Bearing 15123 is built with industry-standard measurements. Its inner diameter of 1.250 inches makes it perfectly suited as an outer bearing for 5,200 lbs, 6,000 lbs, and 7,000 lbs axles. This means you're guaranteed a snug fit with your trailer, minimizing any unnecessary movement and wear, helping to avoid those costly repairs down the line.

High-Speed Performance: Designed for Durability

Whether you're towing across town or across the country, this bearing is designed for high-speed use, ensuring that you can embark on any journey with confidence and peace of mind. Its robust design addresses the needs of frequent travelers, keeping your wheels spinning smoothly and efficiently, mile after mile.

Seamless Integration: Matching Race (15245)

To achieve a seamless integration with your trailer hub setup, this product is complemented by a matching race, the 15245 (sold separately). This pairing promises efficient load handling and an extended lifespan, safeguarding against the common issues of friction wear and tear. It's an investment in reliability.

Perfect Fit for Your Vehicle: Compatible with Various Hubs

The 15123 bearing isn’t just any replacement; it’s designed to fit perfectly with hubs 42655, 42656, and 8-174-5, catering specifically to professional and DIY enthusiasts who demand accuracy and compatibility. No more guesswork, just a simple swap that gets you back on the road quickly and safely.

Versatile and Ready: Important Axle Options

Catering for various loads and axle requirements, this bearing adapts to a range of setups, offering options for race variations and accommodating different axle weight limits. Experience flexibility without compromising on quality or functionality, whether you're hauling lightweight loads or tackling more demanding weight capacities.

Robust Build: Optimal Load Management

Featuring tapered roller bearings, this product excels in distributing load pressures evenly across your trailer wheels, reducing stress and extending the life of your setup. When paired with the correct lubrication and maintenance, it ensures long-lasting, hitch-free performance that stands up against the rigors of heavy-duty towing.





Video of Replacement Trailer Hub Bearing - 15123

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




Video Transcript for Review of etrailer Trailer Bearings Races Seals Caps - Bearings - 15123

Hello, everybody, this is Jeff at etrailer.com. Today, we take a look at this replacement 15123 trailer hub bearing. Now, this is a replacement tapered roller bearing. It's designed to fit to 5,200-pound, 6,000-pound and 7,000-pound axles. It is designed for high speed use and the bearing is always stamped with the industry standard part number. And if you look right here, you'll be able to see it, 15123.

Now, the bearing raise that this will sit in and operate, we do sell that separate on our website. That goes by a part number of 15245. And then the measurement on this, the important measurement is the inner diameter and on this one, it's 1.250. It is a stamped steel construction. Now, when this is installed on the spindle, it would need to be lubricated with either wheel bearing grease or oil.

But that's going to do it for a look at the replacement 15123 trailer hub bearing.

Customer Satisfaction Score:

Ratings & Reviews

4.6

1687 reviews
5 Stars
(1388)
4 Stars
(165)
3 Stars
(54)
2 Stars
(25)
1 Star
(55)
High-quality, tapered roller bearing is designed for high-speed use. Replacement part uses industry-standard number.

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great quality and price



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See what our Experts say about this etrailer Trailer Bearings Races Seals Caps

  • Pre-Greased Replacement 5-on-5 Hub for 3500-lb Dexter Axle
    You can confirm the weight rating of your Dexter axle by removing one hub and pulling its bearings. The included photo shows how part numbers usually appear on bearings. The specific bearings used will tell you the axle's weight rating. Just refer to the linked article that lists the bearings commonly used for various axle weight ratings. A new hub must use the same bearings as the original hub in order to fit on your spindles. A 3500-lb axle commonly uses bearings # L68149 and # L44649...
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  • Can a Hub with Outer Bearing 15123 and LM67048 Both Fit Same Spindle
    The inner diameters of the LM67048 and 15123 both are the same (1.250 inches). That means that a hub with either bearing in the outer bearing would fit your spindle. The part # AKHD-655-6-EZ-K would fit your axle.
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  • Replacement Bearing Kit For Dexter 6,000 lb Axle 2266389
    Hey David, thanks for the picture. I was able to track down a spec sheet for your Dexter axle which I have included below. The 031-029-02 bearing is item # 15123 and the 031-030-02 bearing is item # 25580. For a bearing kit you can use part # BK3-110 which will come with both bearings, races, grease seal, spindle washer and cotter pin.
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    Hello David, I can definitely point you in the right direction. The Lippert 5,200 lb axles will use the standard 12" x 2" brake assemblies. For that I recommend the etrailer Rust-Resistant Electric Trailer Brakes # AKEBRK-7-D. This comes with a pair of Dacromet coasted electric brake assemblies. As far as the hubs, it is not quite so cut and dry. The 5,200 lb axles generally use a # 25580 inner bearing and a # 15123 outer bearing. Given that your axle is almost 20 years old, it may not...
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    The Dexter Trailer Hub and Drum Assembly - 6,000-lb and 7,000-lb Axles - 12" - 5 Spoke Utility # 8-174-5UC3 is the only hub that is compatible with those bearing inner diameters. This uses # 15123 which have the same inner diameter as the # 14125A, it simply uses a different race so it will be compatible.
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  • Replacement Bearing For Timken 15123 Trailer Hub Bearing
    We do offer the Replacement Trailer Hub Bearing, part # 15123 for your trailer but I was unable to find a cross-reference for the Timken 09067 bearing you stated you need. You can measure the inner diameter and see if there are any bearings from the attached pages that would work as a replacement for you. We also offer the matching race for the 15123 and that is part # 15245.
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    Would you be able to tell me what you mean by alternatives or are you looking for the entire assembly?
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    For the Timbren Axle-Less kit compatible with the bolt pattern of 5 on 5 like a Jeep, you would need the 2,200 lb capacity # ASR1THDS03. The spindles on the Timbren system are a little larger than their thru-axle counterparts, so the 3,500 lbs # ASR3500S06 will only fit larger hubs that won't have the bolt pattern you seek. Using # ASR1THDS03, you can then use the Trailer Idler Hub Assembly for 3,500-lb E-Z Lube Axles - 5 on 5 # AKIHUB-550-35-EZ-K or the Trailer Hub and Drum Assembly...
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  • Replacement Hubs With 5 on 5 Bolt Pattern
    We do have hubs available with a 5 on 5 bolt pattern; they are each compatible with 3,500 lb axles, have inner bearing # L68149 and outer bearing # L44649 and fit wheels that are between 13 inches and 15 inches. You need to take apart your old hub in order to find out if you have the same bearing numbers. If so hub and drum assembly # AKHD-550-35-K will work; for an idler hub assembly # AKIHUB-550-35-K would be the right choice. I've added a link to video reviews of these parts for you...
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  • Looking For Replacement Brakes, Hubs, And Leaf Springs For My Dexter Axles
    Hey Steve, Thank you for that information you provided, it sets me up to get you the direct replacements. For that replacement brake assembly you will want to go with the Dexter Nev-R-Adjust Brakes # 23-458-459. This is the left and right hand assemblies that came originally on the trailer, ready to slide on and bolt on for you. We have the hub and drum assemblies as well that are pre greased with the bearings, races and seals already in them ready to slide on. For that you want to...
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  • Replacement Trailer Brake Assemblies For a 2011 Forest River Sierra 5TH Wheel Camper
    I recommend the Dexter Nev-R-Adjust Electric Trailer Brake Kit # 23-458-459 for your 2011 Forest River Sierra 300RL. These will only require you to adjust the brakes to ensure they are set correctly when you install them. After that they will self adjust themselves as the brake material wears away. This will ensure your brakes last longer and will keep you out from under the trailer adjusting the brakes. The Trailer Hub and Drum Assembly # AKHD-655-6-EZ-K will provide you with a new hub/drum...
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  • Do You Have a 6,000 lbs Axle w/ a 89" Hub Face?
    Hey Val. Our Trailer Axle Beam with Easy Grease Spindles item # e23GR is going to be the best option for a 6,000 lbs capacity axle that's 89" long. We don't have any axles with a 68.5" spring seat so you'll need to have a welder install two of the Spring Seats item # TRSS300 per axle to attach the axle to your suspension. The spindles fit item # 25580 inner and item # 15123 outer bearings. You'll also need a set of the U-Bolt Kit for Mounting 5,200-lb to 7,000-lb, Round Trailer Axles...
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  • Recommended Brake Hubs, Assemblies, and Breakaway Kit for a Trailer w/ 6,000 lbs Axles
    Hey Chuck, I sure can and thanks for the information! For replacement hubs, you'll need the Easy Grease Trailer Hub and Drum Assembly item # AKHD-655-6-EZ-K if you have EZ lube axles or item # AKHD-655-6-K if you have standard axles without a grease zerk behind the dust cap. They are sold individually. These hubs fit spindles with inner bearing item # 25580 and outer bearing item # 15123. It wouldn't hurt to confirm the part numbers off of the bearings in your current hubs. 6,000 lbs axles...
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  • Looking for Replacement Bearing Kit for Hub with Bearings 15123/25580
    Hey Mark, when in doubt the correct bearing info is what is listed on the bearings that are in your hub. So if you have a # 25580 and a # 15123 that is for sure the bearings you will need as a replacement. We have these bearings in a kit with the correct size seal with the part # BK3-110.
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  • Hub and Drum Assembly for AL-KO T-52 Axle
    Based on my research, your AL-KO T-52 Axle has # 42 spindles that use hub assemblies with a # 25580 inner bearing and # 15123 outer bearing. You will just want to determine the bolt pattern you are needing as well as the axle capacity, as this can vary between different models. I have attached an article that will help you determine the bolt pattern on your existing hubs. The etrailer.com Trailer Hub and Drum Assembly # AKHD-655-6-K will work for 5,200 pound and 6,000 pound axles and...
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  • Replacement Electric Brakes for Dexter PR-FF SEC-FF 5.2KPR-GGSEC-GG 12X2XQ 36-89
    Based on the photo and information you provided, I can tell you have 12 x 2 inch Dexter brake assemblies for 5.2K axles, for which the Electric Trailer Brake Kit # AKEBRK-7-SA will be an excellent replacement. These are self-adjusting brakes so they do not require periodic manual adjustment like standard brakes. To replace the original brake mounting bolts, nuts and lockwashers, you can use # BRKH12.
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  • Recommended Suspension Upgrade for Grand Design 17MKE Travel Trailer
    Since your Grand Design 17MKE has a GVWR of 6,395 lbs, you more than likely have 3,500 lb axles. That being the case, the Roadmaster Comfort Ride Leaf Spring Suspension Kit # RM-2460-2560 will not fit your travel trailer. Although Roadmaster does not have a kit like this for 3,500 lb axles, I do have another option. I recommend the Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers # RM-2450 which are designed for 3,500 lb axles. Your trailer will need to have the leaf springs...
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  • Parts Needed to Convert Military Trailer M105A2 to Electric Brakes
    We've had this question before and we were able to determine that your M105A2 either uses a 5200 lb or 6000 lb axle so for hub drums you most likely will need the part # AKHD-655-6-K. This hub and drum comes with inner bearing part # 25580 and outer bearing part # 15123. It fits a 12 inch diameter brake assembly. You do want to check your existing bearings for their bearing numbers. There should be bearing numbers stamped on the side. If there is not numbers stamped on the side you can...
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  • Recommended Disc Brake Kit and Replacement TieDown Model 70E Actuator for Load Rite Boat Trailer
    The Dexter DX7.5 Drop-N-Go Brake Actuator # 099-175-20 is a direct replacement for your Tie Down model 70E disc brake actuator with a 7000 lb capacity (Tie Down was bought out by Dexter back in 2017). Although I don't have a way of decoding your VIN, you should be able to call Load Rite and provide them with your VIN - they will be able to tell you exactly what kind of axle is on your trailer. If you can get back to me with your exact axle capacity and wheel bolt pattern, I will be happy...
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  • Do the Hydrastar Disc Brake Kits Include Kodiak Brakes?
    Hey Richard! Hydrastar manufactures their own brake calipers and rotors. Kodiak is made by Dexter so the item # HYD74VR kit is not mixed and matched amongst the two companies products. All of the kits use standard ceramic brake pads. The Hydrastar Disc Brake Kit w/ Actuator for Tandem Axle Trailers item # HYD74VR is designed for 6,000 lbs axles. The hubs are 12" and have a 6 on 5-1/2" bolt pattern. I recommend checking your Timber Ridge's bearing sizes before purchasing to confirm fitment....
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  • How to Determine the Replacement Hubs for a 2002 Magic Tilt Trailer
    To determine what the correct replacement hubs are for your Magic Tilt trailer there is a little bit of information that we will need. We will need to find out inner diameter of both the Inner and Outer Bearings as well as the inner diameter of the Grease Seal. To ensure that your current wheels are compatible with the hub that you get you will need to make sure that you also have the appropriate bolt pattern on your hub. If you remove one of your current hubs you should be able to see...
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  • Replacement Axle for a 84-1/2" Hub Face
    Hey Dave, thanks for the information. The closest axle I have to yours is the Trailer Axle Beam with Easy Grease Spindles item # e45GR. It has a slightly longer hub face at 86-1/2". The spring-center-to-spring-center length is 71-1/2" but these can easily be moved using a couple of the Spring Seat for Round Trailer Axles with 3" Diameter item # TRSS300. I do not have a set of hubs that fit the Trailer Axle Beam item # e45GR that have a 5 on 4-1/2 lug pattern. This axle uses item # 25580...
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  • Replacement Bearings, Races, and Seals for Trailer
    The Replacement Trailer Hub Bearing # 15123 and .750 inch outer bearing # LM11949, will use races # LM11910 and # 15245. For seals, that inner bearing often is used with the Grease Seals 10-36 (pair) # RG06-070 which have an inner diameter 2.250 inches of and outer diameter of 3.376. I recommend using a caliper like # PTW80157 to get a precise measurement to confirm fit.
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  • What Bearings and Seals do I Need for my 8 on 6-1/2 Hub on 6k Axles
    Hey, Matthew! I just want to make sure I’m understanding you correctly, when you mention needing two different size outer bearings, can you tell me a bit more about what you mean? For a 6,000 lb hub with that bolt pattern, you’ll typically need: Inner bearing: # 25580 Outer bearing: # 15123 If you’re replacing the bearings, it’s a good idea to replace the seal as well, since they often get damaged when removing the hub. Your setup most likely uses seal # GS-2125DL. Let me know if you...
    view full answer...


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