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  1. Trailer Axles
  2. etrailer
  3. 3500 lbs
  4. 95 Inch Long
  5. 80 Inch Long
  6. 5 on 4-1/2 Inch
Trailer Axle w/ Electric Brakes - Easy Grease - 5 on 4-1/2 Bolt Pattern - 95" Long - 3,500 lbs

Trailer Axle w/ Electric Brakes - Easy Grease - 5 on 4-1/2 Bolt Pattern - 95" Long - 3,500 lbs

Item # e52SR
Our Price: $624.26
Trailer Axles
Shipping Weight: 96 lbs
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Trailer axle measures 95" from hub-face-to-hub-face and 80" from spring-center-to-spring-center. Includes electric brake assemblies, hubs, drums, bearings, races, seals, and mounting hardware. Easy Grease spindles for simple lubrication. Great Prices for the best trailer axles from etrailer. Trailer Axle w/ Electric Brakes - Easy Grease - 5 on 4-1/2 Bolt Pattern - 95" Long - 3,500 lbs part number e52SR can be ordered online at or call 1-800-940-8924 for expert service.
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etrailer Trailer Axles - e52SR

  • 3500 lbs
  • 95 Inch Long
  • 80 Inch Long
  • 5 on 4-1/2 Inch
  • No Drop or Lift
  • Leaf Spring Suspension
  • Electric Brakes
  • etrailer
  • Easy Lube Spindles

Trailer axle measures 95" from hub-face-to-hub-face and 80" from spring-center-to-spring-center. Includes electric brake assemblies, hubs, drums, bearings, races, seals, and mounting hardware. Easy Grease spindles for simple lubrication.


  • Round axle beam acts as part of your trailer's suspension system
    • Replace an axle on your trailer
    • Fabricate a suspension to fit your application
  • High-strength steel construction
  • Bend in axle creates zero camber angle for even road-to-tread contact across the width of your trailer's tires
    • Best for straight-line acceleration and steady, controlled towing
  • Underslung design - spring seats welded to underside of axle for mounting leaf springs (sold separately)
    • Low ride height makes it easier to load and unload your trailer
  • Straight, Easy Grease spindles - no drop
    • Patented welding process prevents spindle failure with 40% stronger welds
    • Built-in grease zerk for simple lubrication
  • Spring seats and spindles are welded on
  • Electric brakes are easy to install - no actuator or hydraulic lines necessary
    • Requires periodic manual adjustment
    • Includes adjuster plugs, mounting bolts, and hardware
  • Cast iron hubs are sturdy and durable
    • Pre-greased hubs with bearings, races, seals, and lug nuts - no need to pack bearings
  • CSA, QAI, and SAE-N certified
  • Lifetime technical support from the experts at


  • Weight capacity: 3,500 lbs
  • Hub-face-to-hub-face length: 95"
  • Spring-center-to-spring-center length: 80"
  • Hub bolt pattern: 5 on 4-1/2"
  • Drum dimensions: 10-15/16" diameter x 2-11/16" wide
  • Grease cap flange diameter: 1.988"
  • Wheel stud dimensions: 1/2" diameter x 1-1/4" long
  • Axle diameter: 2-3/8"
  • Wheel size: 13" to 15"
  • Limited lifetime 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"

Axle Dimensions

Hub Face and Spring Center Measurements on Standard Trailer Axle

There are multiple ways to measure the length of an axle beam, but the hub-face-to-hub-face and spring-center-to-spring-center lengths are the most accurate. Hub face (A) refers to the length of the axle measured from the base of one wheel stud to the base of the wheel stud on the opposite side of the axle (when hubs are mounted on the beam).

The spring center (B) is the approximate width of your trailer. It is measured from the center of the spring seat on one side of the axle to the center of the seat on the other. This axle beam comes with the spring seats welded on.

If you are replacing your trailer's axle, you should be able to figure out which type you need by determining your trailer's capacity, the bolt pattern of your wheels, the brake type and the aforementioned lengths.

Note: Axle does not come fully assembled.

Pre-Greased Hubs

A trailer hub with the grease cap taken off shows greased bearings

The pre-greased hubs in this kit come with the bearings, races, and seals already installed, which makes for a faster install time and less mess to deal with. After you've put on the grease caps and lug nuts (included), you'll be ready to roll.

etrailer Axles

etrailer axles are made of high-strength steel and come with spindles and spring seats welded on. The spring seats are attached to the underside of the axle so that the leaf springs (sold separately) can mount beneath the axle. The result of this underslung design is a trailer that rides a bit lower for quick and easy loading and unloading.

Each axle is manufactured to create a certain camber angle. This ensures that the angle of the wheels is correct for your towing needs. Because the primary concern when towing is maintaining controlled, in-line movement, each axle is made so that your trailer's tires will run along the pavement evenly, with contact across the width of the tread. The result is excellent straight-line acceleration for steady, in-line tracking. You might notice the bend near the center of the axle; this is what ensures the proper camber angle. Having the center ride a bit higher and the sides of the axle bent lower allows the axle to give just enough to compensate for the load.

Thoroughly Tested for Safety

This hub-and-drum assembly meets the requirements for certification by the Canadian Standards Association (CSA). The CSA creates standards, which when complied with ensure a safe and quality product. This assembly underwent extensive testing to measure stopping distances when braking. This assembly has also been tested by QAI Laboratories for braking performance in a complete automotive setup and under real-world conditions to provide the most realistic scenario for the everyday driver.

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"

BS35RUW95.00080.000 etrailer by AxleTek 3,500 lb Axle Beam - 95" Hub Face - 80" Spring Ctr

B10E-21 10" Electric Brake Assembly for 3.5K Axle - Left Hand

B10E-22 10" Electric Brake Assembly for 3.5K Axle - Right Hand

19-100 Hub-Drum Assembly Compl Boxed - 3.5K - 5 on 4.5 - PG EZ

Customer Satisfaction Score:

Customer Reviews

Trailer Axle w/ Electric Brakes - Easy Grease - 5 on 4-1/2 Bolt Pattern - 95" Long - 3,500 lbs - e52SR

Average Customer Rating:  4.6 out of 5 stars   (111 Customer Reviews)

Trailer axle measures 95" from hub-face-to-hub-face and 80" from spring-center-to-spring-center. Includes electric brake assemblies, hubs, drums, bearings, races, seals, and mounting hardware. Easy Grease spindles for simple lubrication.


Great product and customer service. Perfect replacement for my damaged axle. Would purchase from again.


Quality looks good. 2 bolts missing from brake assembly but service is on the ball sending them.







I ordered two axles to upgrade my trailer capacity to what the frame is rated for, 12,000lbs. The axles have great bearing seats and backing plate studs. The backing plates are fully assembled and ready to connect to the wires already installed into the axle tubes. The hub assembly went smooth and only one set of break shoes needed adjustment. A good buy along with the 5 fully assembled tires and wheels.


I used these axles to upgrade my travel trailer suspension.they Seem to be a good quality item. Good paint job on the axles. Compared to axles that came with the travel trailer. Which helps living on the coast.


Exactly what I ordered packaged nice and pregreased bearings.


etrailer is the best. I've been dealing with them for years. The orders are always right. The products are top-of-the-line.
Delivery was fast and free.. I have ordered online and I have called and spoken to the sales staff there who were very helpful and knowledgeable about their products. If you have trailers and you don't give a trailer look, you are missing out.


Great value. I upgraded a 3500lb trailer and with the added brake it really helps. I use it to haul tools around so it handles the weight much better. Towing is a breeze now. Installation was easy as well. I will be buying more axles and parts in the future.


Aside from not received complete order the first time, I will still recommend etrailer for all your needs


Everything was going great on my new axle install today, until it wasn't. You shiped me the wrong lock washers for the brake backing plate. The correct nuts but the washers are to small. I'll have to pick them up because the customer is expecting the with to be done be today.


looks like exactly what I needed, It is always challenging to find trailer parts, so many different types and sizes, the web listings and videos made it very simple, the items arrived very quickly. everything fits properly.

Very Happy!!


Best thing I did was change axles to these. Went from 3500lb to these 7000lb with brakes on both. Tows and stops incredible.


I was worried about ordering trailer parts from a new company online. Product showed up fast and on time. Beat most other product pricing. A courtesy email was sent when product was delivered, making sure I was satisfied, giving me a direct contact incase I had any issues.
I haven't used the product yet but everything looks good.
Will order trailer product again in the future.


I wish I could give negative stars. My order arrived on time, but it was the wrong axle. The axle I ordered and paid for was a 3500 lb drop axle with electric brakes, they sent a bare 3500 lb drop axle. $[XX] difference. I immediately contacted customer service who required pictures of what I received. When I supplied them, they did not respond and even removed my order from their website so I can't track it to see if they're trying to make this right. They won't answer emails either because Ive sent a few. I'll try to get my credit card to refund me since they won't respond.


The axle seems good. Nice that the ball bearings were grease. We will see over the miles if all goes well. The delivery, besides the break assembly was quick. Not sure why the break assembly was not shipped with the rest.


Piece of cake to install. Pull out the old snapped axle install new axle. Bearings come pregreased.


Was sent an 83 inch axle.


Super fast shipping, excellent packing to protect the product. I have not opened all the boxes yet but plan to work on the install in the morning.


Wrong axle sent did not need the 4" drop down.


Product was exactly what I was after and helps me too get trailer back to work faster.


The guys and gals at etrailer are the b est!


The axle fit perfectly. No instructions but not the first axle I've changed. Backing plate assembly should be pack a little better to keep them from being knocked around. Stellar service, fast shipping. Thanks

Show More Reviews

See what our Experts say about this etrailer Trailer Axles

  • Who Makes etrailer Axle e52SR
    The etrailer axle part # e52SR is made by AxleTek.
    view full answer...
  • What Is The Weight Of The Individual Parts On The Trailer Axle w/ Electric Brakes # e52SR
    When it comes to the individual weights of the parts on The Trailer Axle w/ Electric Brakes # e52SR they are listed below: The trailer axle beam weighs 40 pounds. The brakes weigh 10 pounds apiece so total of 20 pounds, and the hubs weigh 22 pounds apiece so total of 44 pounds. So together the axle will weigh 104 pounds. I attached a review video link below.
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  • Will 95" Hub Face Axle e52SR Work in Place of 93-1/2" Hub Face Axle
    The Trailer Axle with Electric Brakes part # e52SR has a 95" hub face to hub face measurement. If you currently have a 93-1/2" hub face to hub measurement then the axle is going to stick out 3/4" more per side. This likely won't create any issues but you'll want to measure first. The spring center measurement of 80" means the axle offers a bolt-on fit.
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  • Weight of 89" and 95" Trailer Axle w/ Electric Brakes - Easy Grease - 5 on 4-1/2 Bolt Pattern - 3.5K
    We currently offer 3,500 lb axles in two different lengths, 89" and 95" which is measured at the hub face. The 89" Trailer Axle with Electric Brakes part # e43SR weighs around 95 lbs and the 95" Trailer Axle with Electric Brakes part # e52SR weighs around 100 lbs.
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  • Comparing etrailer And Dexter 3,500lb 4 Drop Axles
    The two options you're referring to, the Dexter Trailer Axle w/ Electric Brakes # 7685269-EB and Trailer Axle w/ Electric Brakes # e52SR are essentially the same when it comes to their specs. The only difference is the manufacturer with one being Dexter, which is a very well known brand in the industry, and the other being manufactured by Axle-Tek. Having worked with both I can say there isn't a real distinction in quality so I tend to go with the lower cost of with Axle-Tek components....
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  • How to Tell if Rockwell Brakes and Hub/Drums Will Fit etrailer 3.5K Axle
    The 3.5K 95" Long Trailer Axle Beam with Easy Grease Spindles # e68GR is compatible with the following bearings and seal: - Inner Bearing L68149 - Outer Bearing L44649 - Seal 58846 (Inner Diameter 1.719") If your current hub/drums use these bearings and have this inner diameter for the seal then what you have is compatible with this axle. The Trailer Axle w/ Electric Brakes # e52SR is a great alternative kit if your bearings and seal don't match. This is the same exact axle but it...
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  • Is There a Replacement Hub/Drum For Dexter 8-283?
    I have some part recommendations for you as the Dexter 8-283 hub is obsolete. This used a spindle which is also obsolete. I recommend having a new axle put on as it will be easier to upgrade your axle than having new spindles, brakes and hubs installed. Your hubs were used on a 2,800lb axle and going to a 3,500lb axle will be your best option. We have a axle that is 89" # e43SR or 95" # e52SR from hub face to hub face if that matches your current axle. These both include 10" hubs with electric...
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  • How to Choose a Replacement Axle for a 1980 Apache Ramada
    To choose the correct replacement axle for your 1980 Apache Ramada trailer you'll need to measure the distance between the spring centers and hub faces for your current axle and find one that has the same specs. For a 3.5K axle with brakes we have 3 different options: - SC 74"/HF 89" # e43SR - SC 80"/HF 95" # e52SR - Timbren Kit # A35RS545E The first two options are for traditional trailers while the Timbren kit uses individual suspension parts for better trailering performance so...
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  • How to Measure for Replacement Axle on Dual PWC Trailer
    Since you're looking for a complete axle, hub, and suspension kit the easiest way to go is with the Timbren Axle-Less system. You can use part # A35RS545 for a standard hub or part # A35RS545E for a replacement hub/drum and brake system. These bolt directly to your trailer frame so it's just a matter of following the instructions and making sure you have everything spaced out correctly. You will need to have this same Axle-Less system installed for both axles though so you can't mix this...
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  • Can a 3,500LB Trailer Axle Be Used To Replace a Dexter 3,000LB Axle On a Tandem Axle Travel Trailer?
    A Dexter 3,500LB Axle # 7359765 is going to also have a 2-3/8" diameter axle tube like your Dexter 3,000lb axle. This will require you to have different hubs as the 3,500lb axle is going to have a larger spindle. If the axle you are replacing has Idler Hubs # 84545UC1-EZ that is all you will need. Otherwise if your axle has electric brakes you may have issues with new brakes as the 3,000lb axles commonly came with 7" brake drums while 3,500lb axles commonly use 10" drums. If you can provide...
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  • How to Find Replacement Axle for Hurricane HUR 2178 Boat Trailer
    Finding a replacement axle will require measuring your current axle. Specifically, the hub face to hub face measurement. I would say based on the GVWR it is a 3,500 lb axle. It could possibly be a 3,000 lb axle depending on what they figured for tongue weight, but that would be obsolete so you're looking at 3,500 lbs either way. We only have two length options for 3,500 lb axles so I'll list them below. If you switch from a 3k axle you will also need new hubs. You can choose from the following:...
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  • Replacement Axle, Bearings, and Hubs for 2000 Nitro X TRL Boat Trailer
    Based on that UFP H-1377 hub I can tell you have 3,500 lb axles. We have the following complete axle kits available: -Trailer Axle with Idler Hubs - 5 on 4-1/2 Bolt Pattern - 89" Long - 3,500 lbs # e65GR -Trailer Axle w/ Electric Brakes - Easy Grease - 5 on 4-1/2 Bolt Pattern - 89" Long - 3,500 lbs # e43SR -Trailer Axle with Idler Hubs - 5 on 4-1/2 Bolt Pattern - 95" Long - 3,500 lbs # e52GR -Trailer Axle w/ Electric Brakes - Easy Grease - 5 on 4-1/2 Bolt Pattern - 95" Long - 3,500...
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  • Trailer Brakes and Hubs For Adding Electric Trailer Brakes To a Dump Trailer With 2-3/8" Axle Tubes
    If you do indeed have a 3,500lb axle it will use a 10" Brake Kit # AKEBRK-35-SA per axle on your dump trailer. It is best to remove one of your hubs as this will allow you to measure for the bearings and grease seal and be able to verify you have a Brake Flange # 4-35 for the brake assemblies to mount. A 3,500lb axle will have a Grease Seal # 58846(ID 1.719" / OD 2.565"), Inner Bearing # L68149(ID 1.378") and Outer Bearing # L44649(ID 1.063"). If this matches what you have you will need...
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Do you have a question about this Trailer Axle?

Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video by:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Carrie F
Updated by:
Carrie F
Employee Ryan F
Updated by:
Ryan F
Employee Conner L
Installed by:
Conner L
Employee Mike S
Written by:
Mike S

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