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Timbren Axle-Less Trailer Suspension System with Hubs - 4 on 4 - Regular Tires - 1,200 lbs

Timbren Axle-Less Trailer Suspension System with Hubs - 4 on 4 - Regular Tires - 1,200 lbs

Item # A12RS440
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Our Price: $856.45
Trailer Axles
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Shipping Weight: 66 lbs
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Trailer Axles A12RS440 - 1200 lbs - Timbren
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The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle, allowing for maximum ground clearance and a low deck height. Suspension units replace your existing axle and operate independently. Fits any frame width. Lowest Prices for the best trailer axles from Timbren. Timbren Axle-Less Trailer Suspension System with Hubs - 4 on 4 - Regular Tires - 1,200 lbs part number A12RS440 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Trailer Axles - A12RS440

  • 1200 lbs
  • Universal Fit
  • Rubber Spring Suspension
  • 4 on 4
  • Idler Hubs
  • Timbren
  • Easy Lube Spindles

The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle, allowing for maximum ground clearance and a low deck height. Suspension units 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 with hubs accept any 4-bolt wheels with regular tires
    • EZ Lube feature makes it easy to grease bearings without removing the hub
    • Spindles can be easily removed from units for simple replacement if damaged
    • Bearings, races and seals are included with hub
  • 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 regular tires
    • Not recommended for triple-axle applications
  • Bolt pattern: 4 on 4"
  • Weight capacity: 1,200 lbs
  • Quantity: 2 suspension units with hubs
  • Spindle/Hub compatibility:
    • Bearings: L44649 inner/outer
    • Races: L44610 inner/outer
    • Seal: 10-60
  • 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 standard, 2-inch 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 holes make it easy to reinforce your trailer's frame by adding standard, 2-inch-square 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 accepts any 4-bolt wheel (5-bolt model shown) that has a regular tire.
  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-square 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

ASR1200S02 Axleless Trailer Suspension System by Timbren - Without Hubs - Regular Tires - 1200 lbs

88440-2 Timbren Idler Hub 440 1/2" Stud - Qty 2






Customer Reviews

Timbren Axle-Less Trailer Suspension System with Hubs - 4 on 4 - Regular Tires - 1,200 lbs - A12RS440

Average Customer Rating:  4.7 out of 5 stars   (207 Customer Reviews)

The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle, allowing for maximum ground clearance and a low deck height. Suspension units replace your existing axle and operate independently. Fits any frame width.

by:

Shipped fast. Parts look good.



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


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


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


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


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


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


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


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


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


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


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


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


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



by:

Review from a similar Axle-Less Suspension in Trailer Axles


revolutionary. i will never go back to a standard axle ever again. great ride and performance regardless of loading. no need for separate shocks is a real game changer too.



by:

Review from a similar Axle-Less Suspension in Trailer Axles


Best suspension you can get for off-road trailers. We use this suspension on all of our VORSHEER XER trailers.



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


Fast service from etrailer sending me my Timbren kit. They are always very helpful. Unfortunately it looks like UPS mishandled one of the 3 boxes and had to re-tape it all over. I just rcv'd the shipment, so I will have to open the box when I get home and make sure everything is inside. This is no fault of etrailer, just the shipping companies these days.


Comments
I will have our customer service team reach out to you.
-- Etrailer Expert Jenny N - 11/21/2021

by:

Review from a similar Axle-Less Suspension in Trailer Axles


So far great! I used one of the Timbren Axles in a mountain trail camp/SAR trailer I just finished building. I have only had the trailer on roads because all the trails I want to try it on are still under snow...but it is melting fast. I have included a couple of photos.


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Ask the Experts about this Timbren Trailer Axles



  • Timbren Axle-Less Trailer Suspension System Recommendation for a 1977 13 ft Scamp Trailer
    Converting a torsion axle trailer to a trailer with a Timbren Axle-Less Trailer Suspension System has been done before and most people who have done this really prefer the smoother ride and increased ground clearance. Timbren 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...
    view full answer...
  • Recommended Axle-Less Trailer Suspension System For Trailer With Springs 42 Inches On Center
    We don't have an axle compatible with center of spring to center of spring dimension of 42 inches. We do however have an axle-less system that will work. I recommend the Timbren Axle-Less Trailer Suspension System with Hubs - 4 on 4 - Regular Tires - 1,200 lbs # A12RS440 or the 2,000 lb capacity system # A20RS440. This will replace your leaf spring suspension and give you the 4-on-4 idler hubs. It will bolt directly to your trailer frame and give you greater ground clearance because...
    view full answer...
  • Is the Spindle Attached to the Assembly on the Timbren Axle-Less Trailer Suspension System
    For the Timbren Axle-Less Trailer Suspension System with Hubs # A12RS440 that you referenced, the spindle is assembled to the backing plate, and you do not have to do any welding. I have checked with my contacts at Timbren, and you will have to install the backing plate on the control arm of your assembly, but this is a bolt on application. Please note that you will need to properly pack the bearings with grease before installing them on the spindle. This is an EZ Lube Spindle, but you...
    view full answer...
  • Dimensions of the Timbren Axle-Less system part # A12RS440
    I attached all of the dimensional drawings we have for the Timbren Axle-Less system part # A12RS440 that you referenced.
    view full answer...
    Image 1 for Image 2 for Image 3 for Image 4 for
  • Recommended Axle-Less System For Small Trailer
    If you are looking for axles with 48 inches spring-center-to-spring-center length, we offer several but they have a weight capacity of 2,000 or 2,200 lbs. I have attached a link to the product page for these axles you can check out. The closest we come to the 1,000 lb axles you mentioned is our axle-less systems like part # A12RS440. This is a system that has 1,200 lbs capacity and includes a 4 on 4 hub. This is a nice system because you do not have to worry about the width of the trailer...
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  • Realigning Axle-less Trailer Suspension on Motorcycle Trailer
    I recommend checking the alignment of your spindles before purchasing a new axle. Unless there is something wrong with the system itself, it may only need to be realigned. An easy way to check the alignment at home is to measure from the end of the spindle to the centerline of the trailer at the coupler. I have attached a diagram showing this measurement for you. A trailer shop, or other fabrication shop, should be able to help you re-align the trailer by removing and repositioning...
    view full answer...
    Image 1 for
  • Axle Recommendation for Small Camper Trailer Towed Behind Motorcycle
    You'd be a good candidate for the Timbren kit part # A12RS440 which is an axle-"less" kit that attaches to the trailer frame directly. I attached a picture that shows how it attaches to a trailer frame. It wouldn't require you to measure out the exact axle length you need either. The capacity is 1,200 lbs.
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  • Changing Hubs with 4x100 Wheel Bolt Pattern for Hubs with 4 on 4 Wheel Bolt Pattern
    Your best option is going to be to replace both the axles and the hubs. We unfortunately do not have any hub that use the same inner and outer bearings as your current hubs. If you decide you want to replace your trailer axle, the Timbren Axle-Less Trailer Suspension System with Hubs - 4 on 4 - Regular Tires - 1,200 Pounds # A12RS440 is a great option. This system doesn't use a traditional through axle, but rather works independently on each side and will fit any frame width trailer. The...
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  • Will Timbren Axle-Less Trailer Suspension System Cause Galvanic Corrosion On Aluminum Frame
    The Timbren Axle-Less Trailer Suspension System part # A12RS440 can be used on trailers with an aluminum frame. The powder coated bracket will do an okay job of preventing galvanic corrosion but I'd still recommend an extra barrier which could be something as simple as a layer of durable tape between the surfaces.
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  • Replacement Axle on Boat Trailer
    I may have solution for you but unforunately we don't carry an axle with those measurements. If you'd like a traditional axle you might be better off sourcing one locally so it can be ordered with the exact specs you need. Another option is a universal fit axle-less suspension. You'll need to purchase a system based on your boat trailer's axle capacity. For example, part # A12RS440, replaces 1,200 pound axles and has the bearings and hubs with a 4 on 4 bolt pattern. I've attached a...
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  • Weight Capacity of Timbren Axle-Less Trailer Suspension System # A12RS440 Explained
    The 1,200 lb weight capacity of the Timbren part # A12RS440 is the axle capacity which means the capacity of both sides together. This is a solid choice to replace a Torsion setup so this would work great for you.
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  • Can the Timbren Axle-Less Trailer Systems be Used on the Highway
    The Timbren Axle-Less Trailer Suspension System # A12RS440 that you referenced can definitely be used on the highway.
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  • Recommended Timbren Axle-Less Trailer Suspension System for Harbor Freight Trailer
    As you can see in the attached dimensional drawing of the Timbren Axle-Less Trailer Suspension System part # A4RS440, the distance from the center of the spindle to the bottom of the trailer frame is 2-1/2". If you required a greater distance between the center of the spindle to the bottom of the trailer frame, you would need to go to the next size system which is part # A12RS440 that has 2-5/8" of clearance. Both of the above spindles come with hubs that have a 4 on 4 bolt pattern. For...
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  • Recommended 1,200lb Timbren Axle-Less Suspension For A Small Trailer
    We do have the Timbren Axle-Less Trailer Suspension System with Hubs - 4 on 4 - Regular Tires - 1,200lbs # A12RS440 for your trailer but unfortunately do not carry wheels with the 4/156 bolt pattern you're wanting. I've attached our selection of wheels that will fit the 4 on 4 bolt pattern of the Timbrens.
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  • Recommended Axle-Less System with Idler Hubs and 8 Inch Tire and Wheel Combinations
    For your hostile duty portable cart/trailer, I recommend the Timbren Axle-Less Trailer Suspension System with Hubs - 4 on 4 - Regular Tires - 1,200 lbs # A12RS440 or the 2000 lb capacity # A20RS440. These assemblies only require a 2 inch square tube to be used to fit in the integrated holes if a cross bar is not present in the frame at the axle location. These spindles have the integrated hubs and suspension to make things easy and also allow greater ground clearance than a traditional...
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  • Is Timbren Axle-Less Trailer Suspension System # A4WS440 Rated for 400 Pounds Total
    The 400 pound capacity for the Timbren Axle-Less Trailer Suspension System # A4WS440 is for the set not for each. If you were to get two sets of these that would be a total capacity of 800 pounds. You would need to go up to the next highest capacity, # A12RS440, rated for 1,200 pounds for one set.
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  • Are Tires Included With Timbren Axle-Less Suspension Systems
    The Timbren Axle-Less Systems do not come with tires included. The description states it can be used with regular tires so that may be where the confusion comes from. The Timbren system # A12RS440 does come with idler hubs that have a 4 on 4 wheel bolt pattern. The # A20RS545 system has idler hubs with a 5 on 4-1/2 wheel bolt pattern. I have attached a link to our product page for the tire/wheel combinations we offer. You can use the page filters to find the combos that would work best...
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  • Recommended Replacement Axle For 1993 Shorlander B167F
    We do have axles that will fit your boat trailer, but they will not be a thru axle. What we have that is compatible is the Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 -1,200 lbs # A12WS545 or the Timbren Axle-Less Trailer Suspension System with Hubs - 4 on 4 -1,200 lbs # A12RS440. This will give you the replacement you need and will be compatible with your tires as long as you choose the assembly that matches your bolt pattern. This will replace your suspension...
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  • Options for Updating Older Thule Utility Trailer with New Hubs and Axle
    I checked with my contact at Thule about the specs for the wheel supplied with their former range of utility trailers. These have not been offered for long enough that they no longer have any parts left nor do they even have access to the specs, such as wheel offset, for those originally supplied. I will still try my best to help you. The linked page displays all trailer wheel/tire combination products with your 4-on-4 wheel bolt pattern and with your tire size 175/80-13. I checked the...
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  • Axle Recommendations for Homemade Motorcycle Trailer
    I can help you determine which Timbren Axle-less system is the right one for your trailer. If your total trailer weight including the weight of the motorcycle is under 400lbs. then the Timbren # A4WS440 system will be a good fit for you. These axle-less systems provide a smooth and quiet ride without having to sacrifice any ground clearance. Depending on what your total trailer weight ends up being you may want to go up to the next highest capacity set rated at 1,200lbs. # A12RS440. If...
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  • Upgraded 2,000 Lb Axle for an Alltrade Trailer
    The weight capacity of a trailer is always going to be limited by its weakest component. The weakest component on a trailer is generally the tires followed by the axle so if you were to upgrade these two components then in theory you will have a higher weight capacity. For a new wheel/tire, I recommend the Kenda 5.30-12 Bias Trailer Tire with 12" White Wheel part # AM30859. This tire comes with a load range D rating which is suitable for use up to 1,250 lbs per side and comes with a two...
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  • Recommended Replacement Spindles and Suspension for Harbor Freight Trailer
    The Harbor Freight trailers are notorious for not being compatible with standard bearing replacement sizes. Unfortunately there is not a simple bearing replacement I can give you. The spindles of those trailers are an odd size that work well only with their bearings which we do not carry. My recommendation is to replace your trailer with a new one of the same quality for the cost of the replacement parts or upgrade your axles to the Timbren Axle-Less Trailer Suspension System with Hubs...
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  • Recommended Axle-Less Suspension To Replace Standard Axle On Small Trailer W/ 1200lb GVWR
    Absolutely! I recommend the Timbren Axle-Less Trailer Suspension System with Hubs - 4 on 4 - Regular Tires - 1,200 lbs # A12RS440 which has a 1200lb combined weight rating to match the 1200lb GVWR of your trailer. The built in AEON progressive-rate main springs will provide a smooth ride no matter the size of the load and is a great option to replace your current axle with leaf springs. If your current wheels have the 4 on 4 bolt pattern you could reuse them, or you could replace the...
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  • Is the Capacity of the Timbren Axle-Less Suspension System the Total Capacity?
    The listed weight capacity of the Timbren Axle-Less systems is the combined capacity of the pair. The 1,200 lb systems are the lightest we offer and there are a number of options for you depending on what you need. For example, the # A12RS440 has hubs with a 4 on 4 bolt pattern while the # ASR1200S02 is a spindle-only system. I've added a link to a video review on these systems for you to take a look at, as well as a link to each of our Timbren systems so you can find the best one for...
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