bing tracking image
  1. Trailer Axles
  2. Timbren
  3. 5200 lbs
  4. Universal Fit
  5. Rubber Spring Suspension
  6. Spindles Only
Timbren Axle-Less Trailer Suspension System - 4" Drop Spindle w/ Brake Flange - 5,200 lbs

Timbren Axle-Less Trailer Suspension System - 4" Drop Spindle w/ Brake Flange - 5,200 lbs

Item # ASR5200S04
lowest price pledge
Our Price: $1,378.44
Trailer Axles
This item qualifies for Free Shipping
Shipping Weight: 255 lbs
Quantity: 
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Need help with installation?
Locate installers near me
The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle. Suspension units replace your existing axle and operate independently. The 4" drop spindle allows for a low deck height. Fits any frame width. Lowest Prices for the best trailer axles from Timbren. Timbren Axle-Less Trailer Suspension System - 4" Drop Spindle w/ Brake Flange - 5,200 lbs part number ASR5200S04 can be ordered online at etrailer.com or call 1-833-496-1390 for expert service.
  • All Info
  • Reviews (214)
  • Q & A (0)
  • Photos
  • Why etrailer?

Timbren Trailer Axles - ASR5200S04

  • 5200 lbs
  • Universal Fit
  • Rubber Spring Suspension
  • Spindles Only
  • Timbren
  • Easy Lube Spindles

The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle. Suspension units replace your existing axle and operate independently. The 4" drop spindle allows for a low deck height. Fits any frame width.


Features:

  • Suspension system provides a safe, smooth, quiet ride for your trailer
    • 2 Separate units replace your existing axle
  • AEON progressive-rate main springs absorb road shock and support trailer's load
    • Deliver a smooth, stable ride, regardless of load size
    • Compress and become stiffer as load increases, boosting spring strength
  • Rebound springs act as return devices to minimize rattle and bottoming out
    • Create constant pressure on the arm, so the suspension is never completely relaxed
  • 2 Independent units can eliminate the need for a thru axle
    • Increase ground clearance
    • Lower deck height for easier loading and unloading
    • Reduce roll during cornering
    • Fit any trailer width
  • Built-in camber and toe-in help your trailer to track straight, reducing wear on the tires
  • 4" Drop, EZ Lube spindles accept trailer hubs (sold separately)
    • 4" Drop provides lower ground clearance
    • Spindles can be easily removed from units for simple replacement if damaged
  • Heavy-duty steel construction with black powder coat finish resists wear and corrosion
  • Easy to install and align
    • Bolt or weld to your trailer's frame


Specs:

  • Fits: 1-axle and 2-axle trailers that use drum brakes and regular tires
    • Not recommended for triple-axle applications
  • Weight capacity: 5,200 lbs
  • Quantity: 2 suspension units without hubs
    • Works with Dexter 12" hubs (KBD2-655-19 - sold separately)
  • Spindle/Hub compatibility:
    • Bearings: 25580 inner/15123 or LM67048 outer
    • Seal inner diameter: 2.250"
  • 3-Year limited warranty


Note: The Timbren Axle-Less suspension system may require additional support on your trailer. If your trailer does not have a crossmember above the spot where you want to install the Timbren system, you may need to reinforce the frame. You can accomplish this three ways. First, you can retrofit the trailer with a crossmember. Second, you can build out the trailer frame. Third, you can use 2" x 3" steel tubing to connect the 2 Timbren suspensions together using the built-in hole on each unit.


Ground Clearance

Ride on rubber with Timbren's Axle-Less trailer suspension system. This one-of-a-kind suspension consists of two separate units, each containing rugged steel arms and two strong, hollow rubber springs. Overall, the system safely and effectively absorbs road shock, minimizes trailer bounce and rattle - regardless of load size - and helps to protect your trailer's components and cargo. Built-in camber and toe-in keep your trailer tracking straight to minimize tire wear. Integrated hangers attach to your trailer's frame. And 2" x 3" holes make it easy to reinforce your trailer's frame by adding steel tubing (if needed).


The Axle-Less independent suspension system replaces your trailer's existing leaf spring suspension and can eliminate the need for an axle. The independent action of the suspension reduces roll when your trailer is cornering and allows you to maximize ground clearance and minimize deck height. Your trailer can have the same side-to-side clearance as your tow vehicle. And the low deck height makes it easy to load cargo from either the rear or the side.


Because you're riding on rubber, your trailer will ride smoothly and comfortably, whether you're navigating rocky terrain or highway asphalt.


Timbren Axle-Less Suspension Parts

Components

  1. The AEON progressive-rate main spring supports the weight of your trailer and cargo and easily absorbs road shock. It is constructed of heavy-duty, hollow rubber.
  2. The rebound spring minimizes trailer bounce, rattle and bottoming out. It keeps the suspension under constant tension and ensures that the main spring compresses and expands in a controlled fashion. And it delivers a smooth, stable ride - regardless of how much cargo is on the trailer.
  3. The trailing arm and integrated hanger attach the suspension to the side and bottom of the trailer frame.
  4. The control arm carries the spindle and the hub. It pivots on strong, long-lasting urethane bushings that never require lubrication.
  5. The EZ lube, 4" drop spindle (straight model shown) is simple to grease. If damaged, it can be removed and replaced, saving you both time and money.
  6. The hub is not included with this model.
  7. The built-in hole accepts 2" x 3" tubing. If there is no crossmember above the suspension, you can easily add support to your trailer's frame by inserting 2" x 3" steel tubing through the hole on each suspension unit and then bolting the tubing into place.

Timbren Axle-Less Suspension versus Leaf Springs

Leaf Spring Example

The Axle-Less suspension's progressive spring is a definitive upgrade over leaf springs. Although leaf springs deliver a stable ride when supporting a load, a trailer with leaf springs will bounce and rattle when it's empty or supporting a light or off-center load. On the other hand, your trailer can bottom out on bumpy roads if the load is too heavy. The AEON progressive-rate springs of the Axle-Less suspension always deliver the same reliable performance, no matter the load size. As more weight is added to the trailer, the springs compress and become stiffer, offering more support for heavy loads. And because they rebound more slowly than leaf springs, the AEON springs do a better job of absorbing road shock, thereby keeping your trailer from bouncing and rattling when you're carrying a light load. So with this versatile system you will enjoy a smooth ride whether you're towing an empty trailer or a hefty load.


Unlike leaf springs, Timbren's Axle-Less suspension units operate independently of one another. Each spring activates only when needed. This reduces roll and delivers top-notch performance, even when you're hauling off-center loads. When your trailer with leaf springs takes a turn, one side of the suspension compresses and takes on more weight, and the other side becomes looser and bounces. This causes rattle and can make the trailer lean to one side. But when your trailer with the Axle-Less suspension takes a turn, one side compresses and becomes more rigid to absorb the weight, and the other side expands to normal height to help steady the load and minimize bounce and rattle. The load stays better balanced, even if it is off-center.


Timbren Axle-Less Suspension versus Torsion Axles

Torsion Axle Example

Timbren's Axle-Less trailer suspension system is a great alternative to torsion axles. While both systems allow either side of the trailer's suspension to operate independently, only Axle-Less suspensions are actually separate units. Torsion axles still require a bar that spans the bottom of your trailer, whereas Timbren's system can eliminate the need for a thru axle - giving you the same amount of ground clearance from the front of your trailer to the rear. It also allows Axle-Less suspensions to fit any trailer width - unlike torsion axles, which have to be fitted to an exact frame width.


Axle-Less suspensions operate in a smoother, less stressful manner than torsion axles. Torsion axles use a twisting motion, where the bar inside the axle tube rolls against rubber cords or a rubber wall to create compression and resistance. The up-and-down motion of the main spring and the side-to-side motion of the rebound spring in Timbren's Axle-Less suspension work together to provide smooth, consistent compression - with no twisting - that results in a better ride and less stress on the suspension's components.


Installing the Timbren Axle-Less Suspension

Whether you are building a trailer or retrofitting your existing trailer with the Axle-Less system, you must make certain that the trailer's frame is both perfectly square and sturdy enough to support a heavy load without the aid of a thru axle.


Install Option 1

There are three ways to install the Axle-Less suspension. The easiest method, which is recommended if you are replacing axles on your trailer, is to install a piece of 2" x 3" tubing (sold separately - available at most weld shops) through the integrated hole in the Axle-Less suspension. Then all you need to do is bolt the suspension to the side of the trailer's frame with three bolts (not included).


Install Option 2

The second option for installation is to fabricate an inboard extension plate that attaches the trailer's frame to the Axle-Less suspension.


Install Option 3

The third method of installation is to bolt the Axle-Less suspension's hanger to the trailer's frame and to an existing crossmember that is in the area where you want to install the suspension.


With both the second and third options, you must use three bolts to attach the suspension to the side of the frame. And you also have to use two or three bolts to attach the suspension to the bottom of the frame extension, or crossmember. Both the second and third methods of installation will eliminate the need for a thru axle and provide the most clearance.


Measuring Diagram

Timbren's Axle-Less suspension units should be installed directly across from one another. Before mounting the units, measure back from the coupler and mark the frame to make sure that the two distance measurements (A and B) are within 1/8 inch of each other. Then you can drill holes through the frame and attach the hangers with Grade-5, half-inch bolts (not included).


Dimensions of the Timbren Axle-Less Suspension

Dimensions 1

Dimensions 2

Dimensions 3

Dimensions 4

ASR5200S04 Axleless Trailer Suspension System by Timbren - 4" Drop Spindle - Without Hubs - Regular Tires - 5,200 lbs

Installation Details ASR5200S04 Installation instructionsAlternate Instructions ASR5200S04 Installation instructions




Customer Reviews

Timbren Axle-Less Trailer Suspension System - 4" Drop Spindle w/ Brake Flange - 5,200 lbs - ASR5200S04

Average Customer Rating:  4.7 out of 5 stars   (214 Customer Reviews)

The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle. Suspension units replace your existing axle and operate independently. The 4" drop spindle allows for a low deck height. Fits any frame width.

by:

I received order one box was torn in shipping i think most all the bolts are there . I had 3 surgeries this year i had to put trailer project on hold . I'm ready to get started any day now I'll send pictures when done .




by:

I ordered two sets of these and one set was missing all of the hardware. The other set had all the hardware scattered in a box.




by:


Comments
This set up worked out very well. Losing the Dexter axle is a pane but the long-term gain is very much worth it. The set has been strung together with the 2x3 steel tube but there is still more clearance than before.
Ward - 04/03/2022


by:

Review from a similar Axle-Less Suspension in Trailer Axles


The trailer rides great down the road and no more worries about saltwater and rusty leaf springs. Not a cheap option but I’m very happy with the setup. When installing, just be sure to measure accurately and have sharp drill bits. A drill press type of guide also helps ensure correct drilling angles. The first picture is of a mounting gusset a local welding shop made. One is needed for each side and necessary to provide needed mounting strength-at least on my trailer frame. Pics 2 and 3 show the mounted suspension on one side of the trailer. Pic 4 shows the suspension on one side of the trailer with the axle attached and a separately purchased disc brake assembly mounted on it. Finally, pic 5 shows a 2” box channel between both suspension assemblies. Independent suspensions would have been nice, but I wanted to ensure trailer rigidity was maintained. So, after one year, so far, so good. It’s all smooth sailing down the highway.


Comments
Actually over a year, and still working great.
dale - 04/22/2022


by:

Review from a similar Axle-Less Suspension in Trailer Axles


Trailer suspension and disk brake performance is outstanding big big difference over leaf spring and electric drum brakes.
Installation required modifications to the frame to monut the timbren suspension


Comments
The Timbren axle less suspension and Disk brake and disk brake controller system is still work great. will never go back to drum brakes or leaf spring axle suspension.
Quintin - 01/06/2022


by:

Review from a similar Axle-Less Suspension in Trailer Axles


They have more pros than cons, but the second set I bought broke the flat plate that holds the spindle at about 8 months. The steel quality seemed less than I would expect since it basically peeled it back like a pop can as you can see in the pictures. Otherwise I like the clearance and ride. They last 2-3 years where the torsion axles I replaced would wear out in 4 months after driving down rough gravel roads. There is a grade zerk on the underside which I didn't realize until I bought the second set. That would have helped the first set last longer had I known about it.


Comments
The Timbren Axle-Less Trailer Suspension - 4 Spindle w Brake Flange - Regular Tires - 7K Part # TASR7KS02 has a 3-year limited warranty. I will have Customer Service reach out to you.
-- Etrailer Expert Thomas M - 12/22/2021


by:

Review from a similar Axle-Less Suspension in Trailer Axles


Needed a suspension system that I could make a low profile kayak trailer, that would fit in a specific area next to my garage. These were excellent that I could make the trailer any width I wanted. Easy to install and well made.




by:

Review from a similar Axle-Less Suspension in Trailer Axles


I used these axles in a different way than most would. I needed a trailer that was small, could handle tight switch-backs, carry 600 lbs and be light. I had this idea and as a retired design engineer I saw a great possibility in this axle. I have made four of these trailers now, one as a camp trailer, 2 for trail work for State Parks and one as a utility trailer.


Comments
Really cool work!
-- Etrailer Expert Sierra K - 07/07/2021


by:

Review from a similar Axle-Less Suspension in Trailer Axles


The axle-less suspension worked very well for my boat trailer. The suspension was easy to attach to the trailer frame and provided a lower profile than the traditional leaf spring and axle system.




by:

Review from a similar Axle-Less Suspension in Trailer Axles


Very exicited about these axels, I have been eyeing these for over a year. (Excellent service from etrailer, they had my parts to me in 1 day from the time of placing the order.) These axles seem to be well made and fit nicely with the Dexter hub and drum assembly and the 12" electric brake kit. I installed this all on a M1101/M1102 trailer frame after removing the factory axel assembly. I have not ran these on the road or off as of yet but will give another review at that time. The fit and finish are great and the packaging was good, a little banged up from shipping (missing 1 washer)




by:

Review from a similar Axle-Less Suspension in Trailer Axles


I am not a mechanic so Brandi was real helpful. Had to get some professional help to remove the old suspension and install the new suspension. The only drawback we ran into was the spindle did not extend out far enough to mount the tires in the normal way. We had to put the tires on backwards. It all worked out beautifully. Towed the trailer for over 1700 miles without any problems. Brandi was delightful to talk with and very patient with me. Her help was most appreciated. Sorry, I didn't take any pictures.


Comments
good
R C - 12/19/2021


by:

Review from a similar Axle-Less Suspension in Trailer Axles


Purchased 2 sets of the Timbren 1200 Axle-less systems for upgrading the suspension on an older 30' ft glider trailer. Single axle with small (13") tires made towing tough due to porpoising, dragging on drive entrances do to poor flotation; also German made and metric, no repair parts. GVW 2000 lbs equated to bouncy ride.

Dual sets now allow the trailer to ride over bumps and sharp inclines easily, smoothly, little bounce on country roads; porpoising is history. My glider now rides securely, safely, quietly.

Install time 4 1/2 hours (includes head-scratching). Results are outstanding, units are totally solid. Recommend the square tube interconnect, easy and quick - trailer frame was on the light side, so a precautionary fix. Clean look underneath.

Ordered 5 wheels w/tires, very nice.

Helpful neighbor so impressed he ordered a HD single set for his new DIY snowmobile trailer.

Customer satisfaction 100%, from phone order, online support, product information, immediate shipping, install instructions, followup... HIGHLY RECOMMENDED!


Comments
I have just a little more to add regarding my purchase: Two sets, of the Timbren Axle-less assemblies, 1200 lb, and 5 wheels. I placed the order via phone, and whoever was on-call that day provided great answers and recommendations regarding the units, wheels and tires. At 31 feet, the trailer originally exhibited amplified porpoising on any bumps or dips in the road. Also bouncing and occasional sideways tipping due to the single axle. It made a lot of noise on my mountain community washboards. I speculated that the Timbren units would solve most, if not all of these problems and they have. Installation on my older 31 ft European ie, metric and no longer manufactured glider trailer was a mere 4.5 hours from removal of the old single axle to setting the trailer back down on its new assemblies. Instructions are complete, precise, useful and helpful. Appreciated. Little to comment on as installation was all straight-forward. I would like to describe the maiden voyage to the airport and back, but there is nothing to tell, other than it towed beautifully proper alignment instructions, and all that I viewed from the rear view mirror looked like a magic carpet ride. It rides over washboards and pot holes like a marathon hurdler, the 4-wheel independent suspension is great. Packaging: the shipping boxes all arrived in good condition, but the cardboard component boxes inside them... not so much. Most were ripped and open due to heavy components lightly surrounded with brown packing paper, just token amounts. Parts: all was accounted for minus a pair of spindle axle washers for one set, easily replaced at the local farm and ranch supply. No squawk, just an fyi. I am very pleased with your product and support, and was happy to leave a 5-star review with photos. The upgraded suspension was also a topic this past weekend at the glider port by those who regularly trailer their ships to various soaring events, some as far as a thousand miles away. My compliments to eTrailers, hope you can use my info,
-- comment by: Kelly F - 11/28/2018


by:

Review from a similar Axle-Less Suspension in Trailer Axles


Pleased with ETRAILER, will order here again. Not as happy with the torsion axle setup. 2 inch square opening for tying both axles together with your own 2" square tubing are not shaped to match 2x2x1/8 tubing. Grinding and welding of tubing required to make it fit. Also found the overslung stub axle left the end of the pivot arm without much ground clearance though the unit was intended and spec'd for atv tire off road use. A pivot arm with mounting pads top and bottom would be better and allow the user to choose high or low clearance use. I found the units were perfectly suited to offroad use once I fabricated new mounting pads and welded them to the bottom of the arms.


Comments
After a year of off road use, I couldnt be happier. My trailer rides smooth loaded or unloaded. No of that bunny hopp with leaf springs or rigid mount axles. The small rebound control snubber works perfectly! I modified my components for high clearance but the concept is sound, they work well. Great job Timbren!
Doug F - 06/22/2017


by:

Review from a similar Axle-Less Suspension in Trailer Axles


I rebuilt a 4 x 8 trailer using the Timbren Axle-Less Trailer Leaf Spring Suspension and it works great. I would recommend it to others.


Comments
Working out just fine.
David J - 09/25/2020


by:

Review from a similar Axle-Less Suspension in Trailer Axles


I installed these on my single axle travel trailer to replace the axle and leaf springs. Weight savings was a wash with the required steel tube for added stability. I installed on an I-Beam using aluminum plate as a spacer. It took my friend and I 3 days to install everything. The hardest part was rerouting my black pipe propane line. I also had to install it just back of center due to a steel cross beam being in the way of the middle bolt hole. I replaced the brakes and hubs as well as the wheels to match the new hubs.

Overall we've been super happy with this upgrade. The trailer rides a lot smoother. I'm not finding random screws on the floor after a long bump ride.

We decided to do this after our leaf spring broke 2 times, 12k miles between. We were done dealing with a subpar suspension. I probably would not recommend doing this if your leaf springs are working for you. We put a lot of miles on our trailer. We aren't weekend campers.




by:

Review from a similar Axle-Less Suspension in Trailer Axles


Timbren saved our RV road trip! The leafs on the axle on our 2018 Jayco TT came apart while driving in Maryland. We tried going to the manufacturer, but they were useless. Going to a RV mechanic meant being grounded for at least 2 months. Then we found Timbren. With the help of Timbren's excellent staff we purchased axle-less system through etrailer, who made sure we got as quick as possible. It came ahead of schedule, my husband installed the Timbren system and we were back on the road! The axle-less system is better than the original manufacturers. If you plan on taking your RV or TT farther than 100 miles GET THIS INSTALLED and get it through etrailer.




by:

Review from a similar Axle-Less Suspension in Trailer Axles


A must have suspension if you're building an off-road trailer!


Comments
Its been a year and this suspension is still doing great!
David R - 09/27/2021


by:

Review from a similar Axle-Less Suspension in Trailer Axles


This is as close to a bulletproof suspension as they come. We use this suspension on all of our VORSHEER XOC trailers. They have performed flawlessly as an off-road suspension.




by:

Review from a similar Axle-Less Suspension in Trailer Axles


These units install easily, are well made, and perform great! The trailer doesn't bounce around like you see a lot of trailers do while traveling down a bumpy road. I traveled some unpaved roads with no issues. I am certainly glad I went axleless. I installed with 15" tires. Problem is I didn't go big enough.

I intended to install on an existing trailer that I had. Changed my mind and built a new trailer. The new trailer came in heavier than I had planned. 2k pound capacity is now too small. I have to watch what I load the trailer with so I don't over load the suspension. I intend on buying the 3500 pound units when I have the money.




by:

Review from a similar Axle-Less Suspension in Trailer Axles


The order came in on time and the customer service at etrailer.com (Ashley) and Sean from Tmbren was outstanding. They both were very helpful in my choosing the right product for my needs. The axle less suspension's performance is absolutely superb. It vastly improves ride quality. I am using it on a teardrop camper that often goes on gravel roads and the raddling sound from the leaf axles was horrible. A couple of points to consider before you settle on the axle less suspension: keep in mind that you will lose some hight of the trailer. While you will gain clearance from the lack of the axle, the suspension will make the trailer sit lower than before.i had to lower my hitch by an inch to maintain the trailer leveled. Also it does appear to compress at higher rate than the leaf springs, which makes it softer but easier to reach it's limit. Overall this product is absolutely a must if you are looking to improve the safety and the quality of your towing.




by:

Review from a similar Axle-Less Suspension in Trailer Axles


enclosed are pics of trailer and spindle units. I was very happy with the end result,
lowering ez loader trailer 8 inches for hovercraft. the spindle units were well made,
very strong but had some weld repairs as pictures show.i could not set the needed
adjustments till I cleaned up the units with a stone and file. also please improve the
packaging . these heavy units need something better than cardboard for shipping.
they were dislodged from Styrofoam and partially poked holes thru cardboard. but
fortunately no damage there. again im happy with the installation.thank you!!!




by:

Review from a similar Axle-Less Suspension in Trailer Axles


We use Timbren's ASR3500S06 on all of our XER trailers. We couldn't be happier. It is a well built suspension.




by:

Review from a similar Axle-Less Suspension in Trailer Axles


After a great deal of research, I ultimately chose the Timbren long arm kit to replace the torsion axle under my teardrop trailer. My initial impression is that there is simply no comparison between the two. It now rides better, pulls better and handles better than I could have imagined. The Timbren axle system is incredibly well built and is much more confidence-inspiring. While the spring rate closely matches my trailer weight, the components are much more rugged and robust. The spindles, bearings and brakes are rated at double the capacity of my old axle which gives me great peace of mind. I pull my trailer, both on and off road, anywhere it will fit and the long travel and heavier components are a game-changer for my travels. Installation, while requiring a bit of forethought, was otherwise straightforward and methodical. Documentation available from etrailer and Timbren, is second to none. Instructions were clear and concise with drawings and detail taking the major guesswork out of the equation. Even though, due to the odd frame design of my trailer that required a bit of work to adapt, I ended up making some frame stiffeners, the adaptation was as simple as it could possibly be. I've ordered from etrailer in the past and they were 100% accurate on this order as well. I ordered the Timbren kit without backing plates and hubs due to the requirements of my trailer and etrailer suggested, explained availability and supplied all of the components I needed. They truly a stress-less bunch of folks with an extraordinary website. I'll no doubt turn to them again...




by:

Review from a similar Axle-Less Suspension in Trailer Axles


The parts and prices are great but really for me was Kate Answering my questions and following up later to make sure everything was fine. Hands down best customer service experience I have ever had I don’t see taking my business anywhere else.




by:

Review from a similar Axle-Less Suspension in Trailer Axles


This suspension system did EXACTLY what I wanted. I replaced the leaf springs, axle/hubs on my small trailer. The new suspension improved the capacity, lowered the bed 4+inches, improved ground clearance and allowed me to rebalance the trailer all WITHOUT having to have any welding done. Everything needs to be measured very exactly and the alignment technique is fairly cumbersome and takes a bit of time. In the end, I have a quiet, steady, strong, low riding trailer. What more could you ask for



25
214
Show More Reviews

See what our Experts say about this Timbren Trailer Axles



  • Can Timbren Axle Less System be Used on Tandem Axle Trailer
    Timbren Axle Less systems like the # ASR5200S04 that you referenced can be used in tandem trailer applications. Timbren has told us several times that tandem applications are fine, they don't recommend triple though.
    view full answer...
  • Trailer Frame Mounting Space Required for Installing Timbren Axle-Less Suspension System ASR5200S04
    The Timbren Axle-Less Trailer Suspension System # ASR5200S04 that you referenced will require a trailer frame area of at least 14-5/16" inches long and about 3" tall for proper mounting. I have attached a dimensional diagram below with this and other measurements labeled for the setup (just note that the spindle measurement isn't correct since this model features a 4" drop). When mounting to the frame it's extremely important to use all 3 bolt holes provided, so this full length is needed....
    view full answer...
    Image 1 for
  • Is an Axle-Less Suspension Available With Air Bags?
    Though there are a number of axle-less suspension systems available for a trailer, there are none that have air bags to allow the trailer to be lowered. There are axle-less suspension systems with a 4" drop spindle to allow for a lower deck height such as # ASR5200S04. I've added a link to a video review of this system for you as well as a link to each of our Timbren systems.
    view full answer...
  • Could Timbren Axle Less Suspension System be Used on Fish House Trailer Suspension
    I looked up some fish house suspension setups and there really isn't a reason you couldn't use the Timbren Axle-Less System part # ASR5200S04 on a fish house trailer
    view full answer...
  • Can Timbren Axle-Less System Be Installed On Car Dolly
    There will be no problem using the axle-less system on a car dolly, as long as you do not exceed the weight capacity of the suspension or the trailer. I recommend the Timbren Axle-Less Trailer Suspension System, part # ASR5200S04. This features a 4 inch drop spindle for a low deck height and will fit any frame width. This is a bolt-on or weld-on installation and has a weight capacity of 5,200 lbs. This will work for 1-axle or 2-axle trailers.
    view full answer...
  • Adding a Second Axle to a Food Trailer to Increase Capacity
    You could put a second axle on the trailer you have to help distribute the load better, but I would recommend you either remove your current axle and install two sets of the Timbren axles or match what you currently have and add another axle just like it. Either way your current axle will have to get removed because it will at least need to get moved forward or back so that you have the correct axle placement on your trailer. Basically where your current axle is located is where the center...
    view full answer...
  • Are Timbren Axle-Less Suspensions Available in 7000-lb Capacity
    Timbren axle-less suspension such as the 5200-lb capacity system # ASR5200S04 that you referenced are the highest-rated offered by Timbren. Currently nothing in a 7000-lb equivalent axle capacity is available. These axle-less systems are not recommended for triple axle applications due to the effects of axle scrubbing; when the trailer turns one set of Timbrens will bear the turning load and the other will be dragged along for the ride. This scrubbing is permissible for a tandem application...
    view full answer...
  • Can Timbren Axle Less Systems be Used on an Aluminum Trailer
    There's no reason you couldn't install either the Timbren Axle Less part # ASR5200S04 with 4 inch drop spindles or the part # ASR5200S01 on an aluminum framed trailer.
    view full answer...
  • Replacement 5,200 Pound Trailer Axle
    The 5,200 pound axles we carry are both Timbren axle-less systems that do not use a traditional cross tube axle. Instead they're a universal fit that any width trailer. We have two 5,200 pound systems, one with zero drop # ASR5200S01 and one with a 4 inch drop # ASR5200S04 that will lower your trailer 4 inches.
    view full answer...
  • Replacing 3500-lb Axles with 5200-lb Axles on Enclosed Cargo Trailer
    You can change out the 3500-lb axles on your enclosed trailer with higher-capacity 5200-lb axles but this will not necessarily increase the weight capacity of the trailer. The trailer manufacturer should be consulted (giving them your trailer's VIN) to allow them to determine if the other components in it, such as its frame, have the capacity to allow you to benefit from increasing the axle rating. Also, it will likely be necessary to change your hubs to ones that are higher rated to match...
    view full answer...
  • What is the Weight Capacity of Set of 4 Timbren Axle-Less Suspension Set Up As Tandem Axles
    Each paired set of the Timbren Axle-Less Suspension, like # ASR5200S04 and # ASR3500S04, can be compared as one traditional axle when trying to compare the weight capacities. The Timbren # ASR5200S04 are rated at 5,200 lbs or 2,600 per Timbren unit. If you install 4 total in a tandem axle set-up, then the weight capacity would be 10,400 lbs on the axles. The Timbren # ASR3500S04 are rated at 3,500 lbs per pair and in a tandem set-up the axle capacity will be 7,000 lbs.
    view full answer...
  • Does Timbren Axle-Less Suspension Include Left & Right and Does 4" Lift Spindle Raise Trailer Height
    The Timbren Axle-Less Trailer Suspension System # TASR5200S03 does included both a left and a right side. The 4 inch lift spindle does mean that it will raise the trailer 4 inches. If you need the trailer lower there is a version with 4 inch drop spindles, # ASR5200S04.
    view full answer...
  • Weight Capacity of the Timbren Axle-Less Trailer Suspension System # A35RD545E
    Each of the two hub/suspension assemblies in the Timbren Axle-Less Trailer Suspension System # A35RD545E is rated for 1750-lbs, so together they offer capacity equal to a standard 3500-lb axle. This system can be used to configure a tandem-type trailer if two sets are used. It is not recommended to use three sets to mimic a triple axle suspension. Timbren also offers two higher-rated 5200-lb-capacity systems, part # ASR5200S01 and part # ASR5200S04 with 4-inch drop spindles and brake flanges,...
    view full answer...
  • Drum-Less Hub for Timbren Axle-Less Trailer Suspension System and 17 Inch Wheels
    The Timbren Axle-Less Trailer Suspension System - 4" Drop Spindle w/ Brake Flange - 5,200 lbs # ASR5200S04 can use the Dexter Trailer Idler Hub Assembly for 6,000-lb Axles - 6 on 5-1/2 # 42655UC1 with your 17 inch wheels.
    view full answer...
  • Availability of 5,200 Pound Trailer Axle for 5,200 Pound Disc Brake Kit
    We do not have 5,200 pound regular straight axles but we do have an axle-less system, # ASR5200S04 and it will work with disc brake kit # T4871400. You will also need 2 bearing kits, # BK3-100, since the brake kit does not come with them. If you want a straight axle then you could order one to your specifications from a local tractor or trailer supply store.
    view full answer...
  • Axle-Less Trailer Suspension System Rated for 5,200 lbs
    We do have a solution that can work for you although we do not offer any custom width trailer axles. Instead I highly recommend checking out the Timbren Axle-Less Trailer Suspension System and we have two options available rated for 5,200 lbs, Timbren 4" Lift Spindle w/ Brake Flange # TASR5200S03 and Timbren 4" Drop Spindle w/ Brake Flange # ASR5200S04. The Timbren axle-less suspension systems are simply bolted or welded so you do not have to worry about finding an axle that meets any...
    view full answer...
  • Recommended Replacement Axles for Old Dexter Axle #11 5,200 lb Torsion Axles
    I reached out to my contact at Dexter Axle who said that based off of the numbers you sent in it sounds like you have a #11 Torsion axle rated for 5,200 lbs that is on a Haulmark Trailer manufactured back in 2001 (at least the axle was). Your axle should use 6 lug hubs with EZ-Lube spindles and that it has a 95" hub-face measurement with a 75-3/4" outside bracket measurement (which would be equivalent to spring-center). The closest thing that we have to this is the Dexter Trailer Axle...
    view full answer...
  • Can New 5200-Lb Axles Replace 4400-lb Axles on Tandem Toy Hauler Trailer
    You can change out your toy hauler's axles to higher-rated ones and this will certainly increase the axles' safety margin but it does not necessarily increase the trailer's capacity. The frame and other parts of the overall structure also have to be rated higher than the existing axles in order for you to end up with a higher actual trailer capacity. You can check with Forest River by giving them the trailer VIN number. They can then tell you if the axles are the weakest link and if replacing...
    view full answer...
  • Replacement Axle Options for 91-1/2" Axle with 4" Drop for Boat Trailer
    Our standard drop axles measure 89" long and then 94" long. It's possible to use a larger hub face like the etrailer 94" Long Axle # e35GR but you need to make sure the 78-1/4" spring center measurement lines up and that the 7K weight rating isn't too much for your application. For slipper springs we don't have anything that matches 26" exactly, but we have the 5-Leaf Slipper Spring # e74SR that is made for a 7K axle and measures 26-5/8" long overall. Aside from a standard axle setup...
    view full answer...
  • Recommendation for Timbren Axle-Less Trailer Suspension System with 5,200 LB Weight Capacity
    Timbren offers the Axle-Less Trailer Suspension System, # ASR5200S04, that has a 5,200 pound weight capacity with 4" drop spindle allows for a low deck height. Since this system does not include hubs you would need the following: Hub and Drum Assembly, # 42656 Qty 2 Bearing Kit which includes 15123 and 25580 bearings with 10-36 seal, # BK3-100 Qty 2 OR Idler Hub, # 42655UC1 Qty 2 The idler hub includes bearings, races, seal, and grease cap.
    view full answer...
  • Replacement Axle Solution for 1989 Avion Travel Trailer
    Looks like you have a trailer with tandem Al Ko torsion axles that are dropped and the GVWR is 7,700 lbs so the best solution we have would be the Timbren Axle Less kit with 4 inch drop part # ASR5200S04 for each axle. This would put your spindle height at same height as your current setup and would have more than enough weight capacity. Then for hub/drums you'd want the part # AKHD-655-35-K and for brake assemblies part # AKEBRK-7-SA.
    view full answer...
    Image 1 for Image 2 for
  • What would I Need to Upgrade from 3,500 lbs Tandem Axles to 5,000 lbs Tandem Axles
    We carry the Timbren Axle-Less System rated at 5,200 lbs part # ASR5200S01. The axle-less system mounts to your trailer frame and takes the place of your old axle and springs.# ASR5200S01 is a straight spindle design. Timbren also offers these axles with a 4 inch drop spindle part # ASR5200S04. The Timbren Axle-Less can be mount tandem to repalce your tandem axles. There is no need to install leaf springs, because the Timbren axles have built-in spring system on each axle. However, adding...
    view full answer...
  • Can 3,500 lb Axles be Changed to 5,200 lb Axles and Parts Needed
    The short answer is yes, you can replace your 3,500 lb axle with a 5,200 lb axle. The longer answer is that while you can change to a higher-rated axle, that does not mean your trailer has a higher weight capacity. The reason is, weight ratings are determined by the lowest-rated component, which can be something other than the axle, like the trailer chassis, for example. So you would need to ensure via the trailer manufacturer what the lowest-rated component is. With that said, in order...
    view full answer...
    Image 1 for
  • Should 3,500 lb or 5,200 lb Timbren Axle-Less System be Used for over 3,600 lbs of Loaded Trailer
    Since your axle will ultimately be under the weight of your trailer and it's contents you definitely need to make sure that it is rated for more than what you will be carrying. You need to go with the 5,200 lb weight capacity. For this we have the Straight Spindle # ASR5200S01, 4" Lift Spindle # TASR5200S03, and 4" Drop Spindle # ASR5200S04. This is compatible with the idler hub # 8-213-5UC1-EZ or the hub and drum assembly # 8-201-5UC3-EZ. I recommend going with the hub and drum assembly...
    view full answer...


< Previous
12



Do you have a question about this Trailer Axle?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality trailer axles for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate trailer axle information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Kathleen M
Video Edited:
Kathleen M
Employee Laura H
Written by:
Laura H
Employee Randy B
Installed by:
Randy B
Employee Wilson B
Updated by:
Wilson B
Employee Noah M
Updated by:
Noah M
Employee Zach D
Video by:
Zach D

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.