1. Trailer Leaf Spring Suspension
  2. Timbren
  3. Axle Replacement System
  4. Axles
  5. Universal Fit
  6. 5200 lbs
Timbren Axle-Less Suspension - Spindle Only - Regular Tires - 5200 lbs

Timbren Axle-Less Suspension - Spindle Only - Regular Tires - 5200 lbs

Item # ASR5200S01
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Our Price: $742.25
Trailer Leaf Spring Suspension
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Timbren Axle Replacement System Trailer Leaf Spring Suspension - ASR5200S01
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Designed for regular tires, the Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle. Suspension units with brake flanges replace your existing axle and operate independently. Fits any frame width. Lowest Prices for the best trailer leaf spring suspension from Timbren. Timbren Axle-Less Suspension - Spindle Only - Regular Tires - 5200 lbs part number ASR5200S01 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Timbren Trailer Leaf Spring Suspension - ASR5200S01

  • Axle Replacement System
  • Axles
  • Universal Fit
  • 5200 lbs
  • Timbren
  • Spindles Only

Designed for regular tires, the Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle. Suspension units with brake flanges replace your existing axle and operate independently. 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
  • Straight, EZ Lube spindles accept either 5,200-lb brake assemblies or idler hubs (sold separately)
    • EZ Lube feature makes it easy to grease bearings without removing the hub
    • Spindles can be removed from units for simple replacement if damaged
  • Brake flanges let you install 5,200-lb rated brakes
  • 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
    • Hubs and bearings sold separately


Specs:

  • Fits: 1-axle and 2-axle trailers that use regular tires
    • Not recommended for triple-axle applications
  • Weight capacity: 5,200 lbs
  • Brake flange configuration: 5 bolt
  • Quantity: 2 suspension units without hubs
  • Spindle/Hub compatibility:
    • Bearings: 25580 inner/14125A outer
    • Races: 25520 inner/14276 outer
    • Seal inner diameter: 2.25"
  • 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-inch x 3-inch rectangular steel tubing to connect the 2 Timbren suspensions together using the built-in square 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-inch x 3-inch holes make it easy to reinforce your trailer's frame by adding 2-inch x 3-inch rectangular 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 spindle 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 square hole accepts standard 2-inch tubing. If there is no crossmember above the suspension, you can easily add support to your trailer's frame by inserting 2-inch 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-inch x 3-inch rectangular 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

The following diagrams show measurements that were taken with electric drum brakes installed on the Timbren Axle-less suspension system.


Dimensions 1

Dimensions 2

Dimensions 3

Dimensions 4



ASR5200S01 Axleless Trailer Suspension System by Timbren - Straight Spindle - Without Hubs - Regular Tires - 5200 lbs

Installation Details ASR5200S01 Installation instructions




Customer Reviews

Timbren Axle-Less Suspension - Spindle Only - Regular Tires - 5200 lbs - ASR5200S01

Average Customer Rating:  4.6 out of 5 stars   (131 Customer Reviews)

Designed for regular tires, the Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle. Suspension units with brake flanges replace your existing axle and operate independently. Fits any frame width.

- ASR5200S01
by:

A little bit pricey, at first. But in the long run they are cheaper. We used to bend or break an axle every 3 or 4 months. But we have had these a couple of years now with no problems. One thing that is nice is on a tandem axle set up you can get a flat and you just have to take the wheel off and run on 3 or 2 wheels without the hubs hitting the ground. 593458



- ASR5200S01
by:

Timbren Axle-Less Suspension - Spindle Only - Regular Tires - 5200 lbs Item # ASR5200S01 Looks great on empty trailer, idea is good, bad execution. When loaded tires "splay out" severely, excessive tire wear, obviously too much play in system somewhere. 584361


Comments
Excessive camber which causes wear on the portion of the tire tread closest to the trailer can be caused by a few different things. 1 The axle-less suspension system has a 5200 lb per set capacity, so youll want to be sure this amount is not being exceeded. 2 The surface of the trailer that the suspension member is added to needs to be an integral part of the trailer that should have NO give in it whatsoever. Any flexing of the side member there will throw off the camber of the tires. I have seen what you describe occur when the suspension system has been mounted to tubular steel that made up the edge of the trailer frame. In that instance, some angle iron was added to stiffen things up. 3 Its not required, but a piece of 2x3 inch tube steel of the appropriate length can be used as a beam connecting the two sides, utilizing the existing hole in the axle-less suspension member. This will help stiffen things up. 4 The suspension system should have included some shims that can be used where the spindle attaches to the suspension portion of the assembly. Using these shims can decrease the camber, but only if the points mentioned above are taken care of. Ive checked with Timbren regarding the above, and they concur.
-- Mike L - 11/21/2018

45920

- ASR5200S01
by:

The products are good quality and durable. Etrailers has good pricing, shipping and an easy transaction. Etrailers provides so many different trailer products, you can't go wrong. Thank you Etrailer. 602615



- ASR5200S01
by:

Used these to replace half torsion axles on drop down ice shack. Hesitant to spend the $$$ but glad I did. Well built, less space and smooth ride. Replaceable spindles a plus. 512341



- ASR5200S01
by:

Work perfectly on my one-off trailer bu ild 313906



- ASR5200S01
by:

Purchased these axle - less suspension sets to build a single axle utility trailer. They arrived in excellent condition and appear well made. Installation instructions are clear and well written. Also ordered hubs, coupler hitch, rims, lights, stake pockets and other heavy items. My order arrived complete, very well packaged and timely in eight boxes. The boxes Etrailer used for packing were heavily made and undamaged in shipping. No missing parts because of the superior way they were packed. I will definitely order from Etrailer again. 229033



- A20RS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


This is my first time in building something like this 774926



- A12WS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Good product and easy to install on my new build of a off road trailer for my side by side. Thanks 628307


Comments
This has been a great product and works great and was easy to install
John V - 04/14/2020

73224

- ASR2KHDS05
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Built a custom trailer to haul an ATV on some bad rural roads in Baja. I used the 2" drop axel-less suspension to allow for full size tires and wheels yet keep center of gravity low. Easy to install on exposed frame, but note that a required brace or 2" square steel bar may be needed and sourced on your own. The finish is not very durable and does not survive the normal bumps, wrench scrapes and scratches of installation; plan on some touch up once installed. Pay attention to the spindle clearance and wheel offset. 317250



- A35RD545E
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Extremely good product. Rides much better than traditional leaf springs. Ordering. A 7,000lb 8 lug set for the big trailer. 593860



- ASR1THDS03
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


I installed these on a small jeep style camping trailer that I built. I plated my frame and also used the suggested two inch square tubing to tie them together. It rides very well, looks like it should be very durable, it's a simple design, simple to install, more economical than other independent systems, has less parts to go bad than other systems, I would highly recommend to any body using a trailer on rough roads! 582196


Comments
We just drove 1200 miles mostly at 75mph. The axles work very well in all conditions, trailer ride very smoothly.
PhilTreeMan - 11/20/2019

63425

- A20RS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


I pull my Sea Doo GTX 300 (that means they are pretty heavy!) PWC's from Wisconsin to Florida twice a year. That said, this last trip to Florida caused me to bend the original straight axle on my trailer. Not fun. I ordered the Timbress Axle -less axles, and after a few hours of work on the trailer, they were installed, square and true. I immediately put the Sea Doos on the trailer to see how the trailer performs with the new axle-less system on it. one word: FANTASTIC!!!! I guarantee if I have to fix this issue again, I will use the exact same product. It is awesome! 736299



- A12WS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


I am pleased with the Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Off-Road Tires - 1,200 lbs. I had a project and it worked out just fine. 254872



- A20RS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Built very rugged. I am glad this is available because all the 2K axles I found were not wide enough for my application. This setup allowed me to keep expenses down and build the trailer I wanted. 326161



- A12WS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


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! 580744


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

46128

- ASR3500S06
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


The suspension I ordered is of high quality and I received it sooner than I expected , its good to do business with a company that produces its products so fast. 271528



- A35RS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Had a broken torsion axle on dual axle boat trailer. Manufacter six to eight weeks to replace. Got this product in week. Installed same day. Very happy .cancelled new Axel order. 263087



- A35RS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


I was amazed at the attention given to me and my order. I was kept up to date untill my order arrived, it also arrived a few days before the expected time. The axle less system looks to be so much easier to install and more functional than the regular spring suspension. If compared by cost and labor to the other spring system, I find that this is considerably less. I have yet to install it, but will send photo of finished product as soon as possible. 178367



- ASR3500S06
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Only been driving around on the axle-less system for about a week now and it has far exceeded expectations. I get better gas mileage, my trailer now sits like it was intended to, my trailer doesn't bounce like it used to, I wouldn't trade this axle system for any other. Just wish I would have known which outboard assembly arm my trailer needed with the axle-less system before I placed my order. Still not a problem though, plan on using the wrong outboard arm to build a different trailer. So far, a great product! 208571



- A20RS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


not happy with one lug nut missing threads!!! but I think they also could supply the wedge plate! the horizontal holes never change and the lower vertical should be slots. for the money I shouldn't have to make a plate. 202996



- ASR2KHDS05
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


I was looking for a low profile axle system for my motorcycle trailer. The primary requirement was to be able to load my motorcycle by myself which required a low-profile trailer. With the 4" drop provided by Timbren, this setup turned out great. I originally intended on using ramps but after I swapped the leaf spring axle out with the Timbren, I found I was able to ride my motorcycle on/off without the need for the ramps. Originally, I was going to go axle-less but I found when torquing down the assembly to my frame it started to compress the aluminum rail. To take the pressure off the frame I added the 2" bar from axle to axle. Pulls smooth and effortlessly. I've had several people comment on the trailer height with one wanting to buy the trailer from me. This person worked at the local Honda Dealership. He thought it was a great design and I would imagine he's seen a variety of trailers come through his lot. The other option I considered was a torsion axle but I was looking for the lowest profile I could get. Therefore, cost was not a key factor. I also like the soft ride the Timbren system provides. Not sure if the torsion design would have been as smooth over bumpy roads. Regardless, I'm pleased with how this project came out. 352952


Comments
Its been a year since Ive installed the new axles on my trailer my comments above still hold true. Im very pleased with the ride quality of the system after a year. The trailer tracks true and has hauled many things other than my motorcycle. Even empty it doesnt hop around like the original stock straight axle did. No regrets on the purchase.
Pat A - 03/15/2018

35909

- ASR2KHDS03
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Excellent, helpful customer service sold me this product, and trust me when I say it's worth the price tag. Pulled the old axle and leaf spring off a 60's era Bantam and swapped out for this with a support bar in between. Bumped up tires to 315/75r16 BFG TA/KO's to match my rig and am amazed at how much better this trailer now pulls. Empty it wad bouncing all over the place with the old axle and leaf spring setup. Now I hardly even know it's there. Was very easy to install, took a couple hours but I am happy with how it turned out. A+++ product and customer service! 172019


Comments
HI Matt,WHat size wheel did you use and which hub did you get to match?Appreciate the info
-- comment by: Conrad S - 04/01/2015

10523
Comments
They are GREAT! I put them on a small offroad trailer that has followed me all over some really rough roads in remote Oregon, Washington, and Idaho. They have performed flawlessly, helped the trailer tow extremely well, and were the single best upgrade I did to that trailer. Very much looking forward to another summer of exploring! Massive upgrade to the stock axle leaf spring combo, and I have had the opportunity to show it off to alot of fellow overlanders. I cant speak high enough of them. I also purchased a set of airbags for my vehicle which unfortunately have not held up terribly well. I have had to field repair one once already, and neither holds air terribly well. Truth be told they seem very underdesigned for the job they perform. From my super secret high tech pocket internet window.
Matt N - 02/06/2016

16696

- ASR2KHDS02
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Great looking parts, robust design, professional looking welds....Nothing missing... I contacted Timbren prior to my purchase and received a prompt, helpful reply... The supplied instructions are complete and straight forward, i'm confident should i have any issues, contacting them will get them resolved... 286117



- A20RS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


This is my favorite suspension system in all the world! Rides like an absolute dream. Easy to set up and install. Works on any trailer frame size. One thing to know: You don't get the ride height you get with a standard leaf spring suspension. Even with 15-inch wheels, the ride height is pretty low - maybe 10-12 inches of ground clearance to the bottom of the main trailer frame. If you need more ride height, get the lifted version. A few areas of possible improvement? It's difficult to bolt the suspension unit to a crossmember using the middle bolted hole, which uses a tacked-on weld nut. You have zero room for error when drilling the hole through your cross member, and you can't really use the suspension as a template. Hmmm ... also, the hanger plate mounting holes are positioned 1-inch from the bottom of the trailer frame. That makes it very difficult, since I use channel side rails, to use standard 1/2-inch USS or SAE washers on the backside. There isn't room. Just an extra 1/4 of a inch would allow me to use standard washers underneath the nuts on a channel frame. Nitpicking aside, it's amazing. 410020



- TASR35HDS06
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


We buy a number of things from E trailer and have always found there support and online cataloging very helpfull. 318927


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Ask the Experts about this Timbren Trailer Leaf Spring Suspension

  • 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...
  • Replacement Axle Needed for Lippert 5,200 lbs Axle with Serial Number 045-001684271
    I do have a solution for you, however when I spoke with my contact at Lippert they said that your axle is rated for 5,200 lbs and the highest rated standard axles that we have are rated for 3,500 lbs. The alternative solution that we have is the Timbren Axle-Less Suspension # ASR5200S01. This system is rated for 5,200 lbs and can be used as a single axle or you can use 2 for a tandem axle trailer. There are a few great things about the Timbren system. It increases ground clearance since...
    view full answer...
  • Replacement Axles Needed for Trailer with Tandem Lippert 3,500 lb Axles
    When you are looking for a replacement axle there are a few measurements that you want to take note of to make sure that you get the correct replacement size. You want to get the same length axle that has the same Hub Face and Spring Center measurements. From the information that you gave me, your current axle has a Hub Face measurement of 86.5 inches and a Spring Center measurement of 68.5 inches. Although we do not have any axles that have these exact measurements I do have a solution...
    view full answer...
  • Can Disc Brakes be Installed on Timbren Axle-Less Suspension for 5,200 Pound Axles
    You could install disc brakes on the Timbren Axle-Less Suspension # ASR5200S01. You would use one of the kits from the link I have included to the right. All of these kits have a 6 on 5-1/2 bolt pattern. The kits linked take the same inner bearing but the outer bearing listed for the Timbren system is different than what the description states. The reason for this is that the spindle takes an outer bearing with a 1.25 inch inner diameter. The outer diameter would need to match the hub....
    view full answer...
  • Replacement Options for a Lippert 5,200 Lb Axle
    I do have an option for you but we do not carry any 5,200 lb standard axles. Instead, the only thing we can offer you is an axle-less system like the Timbren Axle-Less Suspension System part # ASR5200S01. This system actually uses rubber bumpers to replace the leaf springs and will do a much better job of absorbing road shock and support the trailer's load than the traditional leaf springs you have now. It comes with a 5 bolt brake mounting flange and works with hubs that use a 25580 inner/LM67048...
    view full answer...
  • Can I use the Timbren Axle-Less Suspension on my Boat Trailer
    Yes, the Timbren Axle-Less Suspensions # ASR5200S01 have a black powder coat finish on them that helps them resist wear and corrosion. This finish will help the axles to withstand the saltwater environment.
    view full answer...
  • Dimensions of the Timbren Axle-Less Suspension System # ASR5200S01
    We have exactly what you are looking for. Check out the dimensional diagram that I have attached.
    view full answer...
  • Recommeded Axle-Less Trailer System For 8500 lbs Capacity
    For an 8,500 lb capacity trailer, you will actually get a 10,400 lb capacity because of where the axle weights fall. For this I recommend 2 of the the Timbren Axle-Less Suspension - Spindle Only - Regular Tires - 5200 lbs, # ASR5200S01. For the hub and drum assembly, I recommend the Trailer Hub and Drum Assembly - 5,200-lb - 7,000-lb Axles - 8 on 6-1/2 - E-Z Lube, # 42866UC3-EZ. You will also need the brake assemblies of Electric Trailer Brake Assembly - Self-Adjusting - 12" - Left Hand...
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  • Replacement Trailer Axle with 65-1/2 Inch Spring Center Measurement
    I do have an option for you but we currently do not have a standard trailer axle with a distance of 65-1/2" from the center of each spring seat. Instead, I recommend taking a look at the Timbren Axle-Less Trailer Suspension System part # ASR5200S01. This system will actually replace the axle and leaf sprigs with a set of rubber aeon springs that will do a much better job of absorbing road shock and support the trailer's load. This system has a 5,200 lb capacity but higher capacities are...
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  • Can I Replace a Torsion Axle on a Tandem Axle Trailer with the Timbren Axle-Less Suspension System
    You can add the Timbren Axle-Less Suspension System, # ASR5200S01, to your trailer in combination with one of your current torsion axles, but there are two important factors to consider before proceeding. You will want to consider the distance from the center of the spindle to the trailer frame and the amount of deflection. For example, the Timbren Axle-Less Suspension System - 5,200 lbs, # ASR5200S01, will put the center of the spindle 3-9/16 inches below the bottom of the frame...
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  • Parts Needed to Upgrade Trailer Axles and Suspension to 5,200 lbs
    If you are wanting to replace your axles with traditional axles then the first step would be to find what your Hub Face (A) and Spring Center (B) measurements will need to be (see attached picture). From there you will need to mock up your trailer to determine what size you need of the following items: 4 - Double-eye springs 2 - Front hangers 2 - Center hangers 2 - Rear hangers 2 - Equalizers 8 - Shackle straps 14 - Shackle bolts 4 - Spring seats (if needed) 4 - U-bolt sets (8...
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  • Timbren Axle Less System Setup for 6 on 5-1/2 inch Bolt Pattern
    The lug pattern of 6 on 139.7 in inches is 6 on 5-1/2 inches which is a very standard bolt pattern for trailer wheels. Which for a Timbren axle-less kit that will fit a hub with that bolt pattern you would want the part # ASR5200S01 which has a 5,200 lb capacity and then the hubs part # 8-213-5UC1-EZ.
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  • Recommended Replacement Axles For Tandem Axle Boat Trailer
    As long as the frame itself can handle the additional weight, you would need to upgrade all of the other components under that weight capacity including the coupler. I recommend using the Timbren Axle-Less Suspension - Spindle Only - Regular Tires - 5200 lbs # ASR5200S01. This will allow your to simply remove the existing suspension and axles and add a cross beam or add a piece of 2x3 inch tubing between the axles in the integrated holes. With these spindles, you can use the Trailer...
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  • Axle Rating for Timbren Axle Less System Explained
    The weight capacity for the Timbren Axle-Less systems like part # ASR5200S01 is per axle. So if you used this on a single axle trailer you would have the axle capacity of 5,200 lbs.
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  • How to Determine Trailer Axle Position When Building a Home Made Trailer
    Determining axle placement can be difficult when the trailer is not already built. You can use the formulas in the picture as a guide and that should help. Typically on a trailer, 60 percent of the weight is forward of the axle. If you think of a trailer that is 10 feet long overall, the center of the axle would be placed 6 feet back. That is a good place to start and you will likely have to make some adjustments later.
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  • 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,...
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  • Where to Place Axles on Triple Axle Trailer Getting Built
    In order to calculate where the axles would go on your trailer, there are several things that need to be taken into consideration. You will have to mock up the trailer with the suspension and axles to get the weights needed to determine where the axles need to be positioned. I have attached a photo that shows you the formulas needed to determine the correct position of the axles. Basically you want to start with the center axle being 60 percent back from the coupler with 40 percent of...
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  • 5,200 lb Trailer Axle Recommendation
    The only axles we offer that have a high enough weight capacity would be the Timbren setup like part # ASR5200S01. This is actually an "axle-less" system that attaches to the trailer frame and provides an axle setup that is somewhat similar to a torsion setup. If you are looking for more of a standard axle you would need to find a local trailer shop who can custom order you in what you would need. For hub drums you would need the part # 8-201-5UC3-EZ and the brake assemblies # AKEBRK-7R-SA...
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  • Will Replacing a Trailer Axle to a higher Capacity Axle Increase the Trailer Capacity
    A trailer axle is the most important factor in determining the trailer capacity but there can be other factors such as the suspension components, wheels and tires, and even the trailer frame itself. You would probably need to beef up the frame if you are adding a second axle or axle-less suspension system or replacing the axle with an axle-less system such as # ASR5200S01. And you would also need wheels and tires to match the higher capacity. You would need to use hub # 8-213-5UC1-EZ...
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  • What Causes Irregular Inside Tire Wear
    If the brakes are dragging on one side of the trailer then that could cause the tire to wear in certain spots. However, if the wear is only on the inside then that points to either the trailer being overloaded or the spindle is bent. I recommend checking the axle capacity and verifying that the weight of the trailer and cargo do not exceed this. If you do tend to find yourself overloading the axles then it may be time for an upgrade. For this, I recommend taking a look at the Timbren...
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  • Can Timbren Axle-Less Suspension be Used on a Triple Axle Trailer
    I spoke with the engineers over at Timbren. The reason that they do not recommend the axle-less suspension systems, such as # ASR5200S01, for triple axle applications is because there is no equalization between what would be the axles of the trailer. Without that a trailer that is not fully level would put to much stress and/or weight on the other sets. The engineer said that they have done it before and it can be done but unless the trailer is always fully level, when loaded or not,...
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  • Recommended Brakes, Hubs, and Tires for Timbren 5200 lb Axle-Less System
    The Timbren Axle-Less Suspension - Spindle Only - Regular Tires - 5200 lbs # ASR5200S01 will use the 12 inch electric brakes and hubs so you are correct the 10 inch tires won't fit. I recommend brake assembly # AKEBRK-6 and hub/drums # AKHD-865-7-2-EZ-K. These will fit the spindles you referenced. The smallest compatible tires will be 16 inches based on the capacity. The tires that are the smallest as you recommended are 30.78 inches in diameter. They are the Castle Rock ST235/80R16...
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  • Axle Recommendation for Trailer Carrying 9,000 Lbs
    Since you mention that your trailer will max out 9,000 pounds, which I assume includes the weight of the trailer frame and all cargo, I recommend going with the Timbren Axle-Less Suspension, # ASR5200S01. I spoke with my shop manager regarding whether he felt using the 5,200 pound axles would be overkill. He strongly recommends going with an axle that has a higher capacity than the amount of weight that you plan to carry and feels that the 5,200 capacity axles would be a good choice....
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  • Timbren Axle-Less Trailer Suspension for 2011 Gulfstream Visa Travel Trailer
    Timbren axle-less trailer suspensions like # ASR5200S01 and # ASR3500S05 can be bolted on to the trailer frame; welded-on installation is fine too. It's your choice. Since the Gulfstream Visa M-19RSD single-axle travel trailer has a dry weight of 2832-lbs and is rated to sleep 5 persons I would expect its axle is rated for more than 3500-lbs. You want to ensure you replace the standard beam axle with a Timbren kit rated for the same weight capacity. Your OEM axle should have a plate...
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  • Timbren Axle Less Setup, Hub/Drums and Brake Assemblies Recommend for 10k Trailer with Tandem Axles
    You can run Timbren axle kits in tandem for a tandem axle trailer. For the Timbren setup you would want 2 sets of the part # ASR5200S01. For hub drums you would want the part # 8-201-5UC3-EZ which will fit the spindles and will give you a 6 on 5-1/2 inch wheel bolt pattern. For brake assemblies you would want the # 23-459 for the right hand side and part # 23-458 for the left hand side.
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  • Do Timbren 5,200 lb Axle-Less Systems Use Same
    The Timbren Axle-Less Suspension System # ASR5200S04, which has a 4" drop spindle and # ASR5200S01, which has a straight spindle, do use the same EZ Lube spindle that fits inner bearing # 25580, outer bearing # LM67048 and grease seal # RG06-070.
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  • Parts Needed to Wire Electric Brakes on Homemade Trailer From Scratch
    Since your trailer is being wired from scratch, I recommend a 7-way molded connector like part # H20046, a junction box # 38656, and an appropriate length of duplex cable, # 10-2-1 for the brakes and 4-wire cable # 16-4B-1 for the lights. To complete the installation you will also want ring terminals and butt connectors # DW05702-1, # 44-5310A, # DW05745-10, and # DW05744-10.
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  • Dimensions of the Timbren 5,200 lb and 7,000 lb Axle-Less Suspension Systems
    Yes, the dimensions of the Timbren Axle-Less Suspension (5,200 lbs) part # ASR5200S01 and the Timbren Axle-Less Trailer Suspension System (7,000 lbs) part # TASR7KS01 are pretty much identical with the exception of their deflection which is 2-3/4" for the 5,200 lb system and 1-7/8" for the 7,000 lb system. I have attached a photo of each of their dimensions for you. If you need a hub or hub/drum please let me know what bolt pattern you have and I would be glad to offer my recommendation.
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  • Disc Brakes for Timbren Axle-Less Suspension
    To answer your first question, the Timbren Axle-Less Suspension # ASR5200S01 you referenced is compatible with disc brakes that use a 5-bolt mounting flange, the Kodiak Disc Brake Kit # K2HR526D. This is a hub and rotor kit; you will also need Bearing Kit # BK3-100, which has the correct bearings, races, and grease seal for the hub on this brake kit. In regards to your second question, I took a look at the installation manual for the Timbren # ASR5200S01 and it specifies using 2"...
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  • Can Timbren Axle-less Suspension be Added to a Trailer to Increase its Capacity
    Technically, no, adding a Timbren axle-less system like # ASR5200S01 would not increase the trailer capacity. The capacity, which is mainly set by the axles, also is determined by several other factors including tires, wheels, suspension components, and the actual construction of the frame. Adding the system would provide more support but you would likely have to adjust the location of the existing axle to get the right spacing between it and the axle-less system and measurements from...
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Info for this part was:

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