1. Trailer Leaf Spring Suspension
  2. Timbren
  3. Axle Replacement System
  4. Axles
  5. Universal Fit
  6. 1200 lbs
Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Off-Road Tires - 1200 lbs

Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Off-Road Tires - 1200 lbs

Item # A12WS545
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Our Price: $425.61
Trailer Leaf Spring Suspension
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Shipping Weight: 74 lbs
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Trailer Leaf Spring Suspension A12WS545 - Axle Replacement System - 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 leaf spring suspension from Timbren. Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Off-Road Tires - 1200 lbs part number A12WS545 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (172)
  • Q & A (59)
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  • Why etrailer?

Timbren Trailer Leaf Spring Suspension - A12WS545

  • Axle Replacement System
  • Axles
  • Universal Fit
  • 1200 lbs
  • 5 on 4-1/2 Inch Hub
  • Timbren

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 5-bolt wheels with low-pressure, off-road 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 low-pressure, off-road tires
    • Greater distance between hub face and trailer frame is designed for off-road tires
    • Not recommended for triple-axle applications
  • Bolt pattern: 5 on 4-1/2"
  • Weight capacity: 1200 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 5-bolt wheel that has a low-pressure, off-road 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


A12WS545 Axleless Trailer Suspension System by Timbren - Hubs with 5 Studs on 4-1/2" Bolt Circle - Wide Tires - 400 lbs

ASR400S01 Timbren Axle-Less 1200S, P021 Outboard Arm Wide Spindle

88440_2 2500 lb Idler Hubs - 545 1/2" Stud - Qty 2






Customer Reviews

Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Off-Road Tires - 1200 lbs - A12WS545

Average Customer Rating:  4.7 out of 5 stars   (172 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.

- A12WS545
by:

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



- A12WS545
by:

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


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


- A12WS545
by:

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.



- A12WS545
by:

The product got here in great time delivered on time as said. But I had problems with the square hole in two of the suspension brackets -- the had one side of the inside tube that had a large radius that won't fit the square tubing you are going to slide through it. I spent a lot of time trimming the bracket and rounding off the tubing I need to install. I live in a residential neighbor hood and working early in the morning. Fitting the tubing in the hole it gets wedged in and I had to pound it in to get the fit needed. Too noisy and it should fit to start with. If a person knows he is going to use this square hole in assembly then the seller needs to send the brackets that fit properly. I have to build a sub frame for this small trailer because the shelving tubing I am using for the deck is too light of gauge to put the suspension system directly too. And I had to chase the threads on one of the spindles because I couldn't turn the nut with channel locks to adjust the bearing to fit. Hope the rest of the assembly goes easier. Still got lots work to do but too hot in after noon.



- A12WS545
by:

First off let me say these axles are EXCELLENT mainly because of their very good design. From what i can tell Timbren is a 9/10 manufacturer. Welds are fantastic(im a professional welder) and this thing is HEAVY DUTY THICK STEEL. Only defect was some paint scratched and one of my grease fittings came right out when i was done greaseing the joint.I welded these up to my custom fabricated trailer and they are just amazing. I would urge anyone to get Timbren suspensions over leaf spring/torsion ANY DAY..



- A12WS545
by:

This review is limited to eTrailer customer service since I have not yet installed the suspension. The part I ordered was out of stock when my order was placed. An eTrailer representative notified me both by email and by phone informing me of the situation and offering direct shipment from the manufacturer in the event time was an issue. While time was not an issue for me, I was impressed eTrailer took such a proactive approach in dealing with the stock out. Additionally, despite the item being out of stock, i did still receive it in a timely matter (~2 weeks).



- A12WS545
by:

Worked perfectly!



- A12WS545
by:

Impressed with quality and strength of these 1/2 axles. Very impressed. Will be buying more. Also, website easy to navigate. Sudden service and rapid delivery. Thanks.



- A12WS545
by:

This place shipped fast and product arrived sooner than I expected! The item was exactly as described and packaged very well. I would recommend etrailer.com to anyone building or repairing.



- A12WS545
by:

Work like it should.



- A12WS545
by:

Extremely fast delivery! Still building but excited to get these bad boys mounted and the trailer bouncing boulders with us!



- A12WS545
by:

Everything looks good so far just opened the boxes.



- A12WS545
by:

Work great no bounce



- A12WS545
by:



- ASR3500S06
by:

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


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.



- TASR5200S03
by:

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


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)



- ASR3500S05
by:

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


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.



- ASR3500S05
by:

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


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



- A35RS545
by:

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


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


- A20RS545
by:

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


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


- ASR1THDS01
by:

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


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...



- A4WS440
by:

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


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



- ASR1THDS03
by:

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


Hello I just received my order today that I only placed on Wensday. That night at 7:30 pm. I received an email stating your order is ready for shipping! I received my order on Friday WOW FAST FREE SHIPPING. Great product fast shipping. I'm going to start building OVERLAND TRAILERS.


Comments
Fantastic O will ONLY use Timbren Axles on my Overland Campers
Robert - 03/07/2021

Comments
Fantastic O will ONLY use Timbren Axles on my Overland Campers
Robert - 03/07/2021


- TASR5200S03
by:

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


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.



- ASR3500S06
by:

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


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


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Ask the Experts about this Timbren Trailer Leaf Spring Suspension

  • Can I Use Timbren Axle-Less Trailer Suspension System with Hubs on my Boat Trailer
    The Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Off-Road Tires part # A12WS545 can be fully submerged in fresh water to launch your boat. They are designed with a corrosion resistant black powder coat and a lot of our customers use them on their boat trailers. I have attached a video for your reference and the dimensions of the system. I recommend Loadstar Kenda ST175/80D13 Bias Trailer Tire with 13" Aluminum Wheel part # AM31245 with a 5 on 4-1/2 bolt pattern....
    view full answer...
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  • Compatibility of Timbren Axle-Less Suspension on Boat Trailer
    The Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Off-Road Tires - 1,200 lbs # A12WS545 is a great option to replace an axle. It will replace the axle no matter the length and attach to the frame replacing the leaf spring suspension as well. You simply need to run a 2 inch square bar (not included) between the two assemblies into the integrated holes. This will have a max capacity of 1,200 lbs, has no maintenance suspension, and comes with EZ lube spindles...
    view full answer...
  • Timbren Axle-Less System Recommendation for a Tear Style Trailer Towing 500 lbs Max
    Based on the weight of your trailer and how much weight you plan on transporting the 1,200 lb Timbrens would be a better choice for you. Using a capacity system that is matched closer to what your trailer will see will provide you with an overall better ride quality than if you went with a system rated too high. For that you would want the part # A12WS545 that you referenced.
    view full answer...
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  • What is Weight Capacity of Timbren Axle-Less Trailer Suspension System # A12WS545
    The 1,200 lb capacity of the Timbren Axle-Less Trailer Suspension System # A12WS545 is the axle capacity so it's the capacity of both sides together. I attached a link to a review video for this kit for you to check out as well.
    view full answer...
  • Dimensions of Timbren Axle-Less Trailer Suspension # A12WS545 For Utility and Motorcycle Trailer
    Unfortunately there is not a 3D step model available for the Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Off-Road Tires - 1,200 lbs # A12WS545. I've attached the diagrams that will help you with the dimensions for the unit to assist. I've also attached a video and the link to the product that does have a 360 degree photo to assist. This system will work well for the small utility and motorcycle trailers you mentioned. I've also attached an article to assist...
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  • Can Timbren Axle-Less Trailer Suspension Rubber Springs Be Replaced to Increase Weight Rating
    Thank you for your purchase last year of a Timbren Axle-Less Trailer Suspension System with Hubs, part # A12WS545. This system is rated for 1200-lbs overall weight capacity. If you are exceeding the system's capacity you can, according to my contact at Timbren, replace the main compression spring with a heavier-rated unit, part # A00100-55000, which will increase the system's rating to 2000-lbs.
    view full answer...
  • Weight of 1,200 lb Timbren Axle-Less Trailer Suspension System with Hubs
    The Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Off-Road Tires - 1,200 lbs # A12WS545 you referenced has a shipping weight of 75 lbs, so when you subtract packaging it will be approximately 70 lbs. I have added a link to a video review of this system for you to check out.
    view full answer...
  • Wheel Recommendation for Timbren Axle-Less Trailer Suspension System # A12WS545
    After doing some research on the 2011 Jeep Wrangler, it appears the bolt pattern of the OEM wheels is 5 on 5 inches. If that is the case, they will not be compatible with the hubs that come with the Timbren Axle-Less Trailer Suspension System, # A12WS545, that you referenced in your question. The hubs and spindles included are designed for 5 on 4-1/2 bolt patterns. If you are unsure of your wheel's bolt pattern, I have included a helpful article that explains how to measure this. I do...
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  • Comparing The Timbren Axle-Less Trailer Suspension System To The FlexiRide Half Torsion Axle System
    For an off road overland trailer, I recommend you go with the Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Off-Road Tires - 1,200 lbs # A12WS545 and not just because we carry them...as I know seems like a conflict of interest. The Flexiride system even with a 1,400 lb capacity is not made for off road and the suspension is a torsion system with rubber cartridge on each side. The Timbren system uses more of a jounce style bumper that the company is known for regarding...
    view full answer...
  • Recommended Axle for a Trailer and Cargo Weighing 800 lbs
    To determine if an axle will fit your trailer you will first need to the (A) hub-face-to-hub-face measurement and the (B) spring-center-to-spring-center measurement (see attached picture). Since this is the standard measurement for axles it will help you determine what axle you will need from our selection of axles that use the standard leaf spring suspension which has been linked for you to filter through. A great alternative option that takes a lot of the guesswork and calculating...
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  • Shipping Weight of Timbren Axle-Less Trailer Suspension System with Hubs A12WS545
    Timbren Axle-Less Trailer Suspension System with Hubs # A12WS545 has a shipping weight of 72-lbs. Figure about 3 or 4-lbs of that will be packing materials. All of our items have a shipping weight shown, just above the yellow "ADD TO CART" button.
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  • Can Built-In Camber be Adjusted on Timbren Axle-Less Trailer Suspension System with Hubs
    When installing the Timbren Axle-Less Trailer Suspension System with Hubs # A12WS545 referenced in your question, the toe-in will need to be set. However, the system does include shims that will allow you to adjust the camber as needed. I have attached an installation video on this product for you to check out. Right around the 4 minute mark you can see this feature explained. This is a great axle-less suspension system with a weight capacity of 1,200 pounds and a bolt pattern of 5...
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  • Timbren Axle-Less Suspension System for a Tear Drop Trailer Build
    Trailer tires are constructed differently than vehicle tires and you can't use one on the other. Trailer tires are built with a thicker sidewall to handle more vertical load where as vehicle tires are not. The wheels are not as big of an issue but the problem is that vehicle wheels usually have an offset to move them either closer to or further from the body. The vast majority of trailer wheels have no offset so vehicle wheels are not a good idea on a trailer. If you go with Timbren...
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  • Wall Thickness Recommendation for Square Tubing Support For Timbren Axle-Less Suspension
    If I were installing the Timbren Axle-Less Suspension System, # A12WS545, on my trailer, I would use a 2 inch steel tubing with a wall thickness of 1/4 inch. I spoke with my contact at Timbren and he told me that they do not have a minimum thickness that they require as long as it was a 2 inch steel square tube. It is recommended that you add this tube if your trailer does not have a crossmember above the suspension and 1/4 inch is a common wall thickness for a 2 inch square axle.
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  • Would an ATV Wheel Bolt Up to a Timbren Axle-Less Trailer Suspension System
    An ATV wheel with a 5 on 4-1/2 inch bolt pattern would bolt right up to the Timbren Axle-Less Trailer Suspension # A12WS545 that you referenced has the same bolt pattern. Your offset means the wheel would be further away from the trailer so it should clear just fine. On a trailer we strongly recommend the use of trailer wheels and tires since they are specifically designed for use on trailer and an ATV wheel is not rated for the vertical load that trailers will see. I would recommend...
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  • Small Gap Between Trailer Frame and Timbren Axle-Less System After Installation
    The weight of the trailer itself will slightly compress the rubber springs on the Timbren Axle-Less suspension systems such as # A12WS545. Since the gap is so small redrilling the holes won't help. Your best option is to use appropriately sized steel plates between the trailer frame and the Timbren system to close that gap.
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  • Timbren Axle-Less Trailer Suspension and Hubs with 5 on 5 Bolt Pattern
    In order to use idler hubs that have a 5 on 5 bolt pattern you would have to use Timbren Axle-Less system # ASR3500S05. Then you could add 2 of hub # 84550UC1-EZ. But the Timbren system is rated for 3,500 pounds which will be stiffer than the 2,000 pound model # A12WS545. If you can go with a 3,500 system then this is the best option. None of the hubs with 5 on 5 bolt pattern will fit the 2,000 pound Timbren systems.
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  • How Much Clearance Is Needed For Tires When Installing Timbren Axle-Less System Under Trailer
    I called my contact at Timbren to get some information for you about the axle-less systems. For the 1,200-lb systems the distance from the center of the spindle to the underside of the frame where the bracket mounts it is 2-5/8 inches. And for these systems they have a deflection of 2-1/8 inches. I have attached a drawing that shows these dimensions you can check out. You will want at least an inch over the deflection distance. There is no hard rule because it depends on the road conditions...
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  • Replacement Hub Assembly for Timbren Axle-Less System # A12WS545
    Yes, to replace a complete hub assembly on the Timbren 1,200 Pound Axle-Less System # A12WS545 the Dexter Trailer Idler Hub # 8-258-5UC1-EZ will work perfectly. This idler hub assembly includes the bearings, seal, and cap, and is designed for use with the EZ Lube spindles for the Timbren System for easy maintenance. I have attached a short video review on the hub below that you can also check out.
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  • Will a Kenda 215/60-8 Bias Trailer Tire and Wheel Fit the Timbren Axle-Less System part # A12WS545
    Yes, the Kenda 215/60-8 Bias Trailer Tire with 8" White Wheel # AM3H310 is going to fit on the Timbren Axle-Less System part # A12WS545. If you check out the picture I attached you will see that when the Timbren is installed you will have a distance of 6-7/8 inches from the hub face to the trailer frame and the backspacing of the # AM3H310 is 4 inches so there would be more than enough clearance.
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  • Installing Timbren Axle-Less Suspension System on Older Trailer
    The Timbren Axle-Less Trailer Suspension System # A12WS545 referenced in your question can certainly be installed on your older trailer to replace its single axle. The suspension units will fit any frame width and they feature a weight capacity of 1,200 pounds. They cannot really be adjusted but because of how they are designed, they will definitely provide a smoother, quieter ride than what you have gotten used to. The AEON progressive-rate springs will also absorb road shock and better...
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  • Recommended Timbren Axle-Less System with 5 on 5 Bolt Pattern Hubs for Overland Trailer
    I have a solution for you, and it sounds like you're looking for a Timbren system that can be used with 5 on 5 hubs that would allow you to use Jeep wheels. Unfortunately the Timbren # A12WS545 spindle does not have any hubs with that bolt pattern, so instead you would need to use the Timbren Heavy-Duty Axle-Less Trailer Suspension - Straight Spindle - Regular Tires - 2,000 lbs # ASR2KHDS01. If you're looking for a lifted system, the Timbren Heavy-Duty Axle-Less Trailer Suspension - 4"...
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  • Timbren Axle Less System for 2k Axle Replacement with 5 on 4-1/2 inch Hubs and Off Road Config
    The 2k Timbren Axle Less kit you are looking for is the # A12WS545 which has the 5 on 4-1/2 inch bolt pattern hubs and is setup for the wider off-road tires like you mentioned. This does not require 13 inch or smaller trailer wheels either.
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  • Is There a Timbren Axle Less Kit Setup that Fits Jeep Wheel Bolt Pattern 5 on 5 inch
    We have to tell you that you shouldn't use Jeep wheels on a trailer as they weren't intended for use on a trailer. That said we know people do this all the time so you'd probably be fine. We've seen people use the Timbren Axle Less kits with Jeep Wheels too. Part of why the Timbren Axle-Less Trailer Suspension System with Hubs # A12WS545 is for "off road" tires is for this purpose so it's physically possible. The Jeep wheel bolt pattern is 5 on 5 inch like what the part # 84550BX has....
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  • Boat Trailer Wheel Rim with Hub Clamps for 7 inch x 4.5 Tire
    The smallest boat trailer tire and wheels we currently offer is 8 inches. I included links showing you all the 8-inch tires and wheels. Can you provide me your tire size? I am thinking you have 7 x 14.5 wheels. Are they mobile home rims? If so we have wheel rim clamps for mobile home style hubs part # 15-2 but not wheels. Please view the FAQ's I included too.
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  • Timbren Axle-Less Suspension for 10,000 Pound Mobile Hydraulic Lift
    A tow-behind hydraulic lift is going to need to be stable so I recommend using a tandem axle set up just like you mentioned. That would equate to using 2 sets of Timbren Axle-Less systems rated for 5,200 pounds for a total capacity of 10,400 pounds. We have a couple of options in this capacity: # ASR5200S01 has regular spindles; no rise or drop, and # ASR5200S04 has a 4 inch drop spindle meaning that it will lower the trailer by 4 inches. For a hub and drum assembly that will fit...
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  • How Much Does the Axleless Timbren Suspension System A12WS545 Compress When Loaded
    The amount of deflection, or travel, that the Timbren axle less kit part # A12WS545 has is 2-1/8 inches I attached a picture that shows this as well.
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  • Replacement Grease Seal for the Timbren Axle Less System part # A12WS545
    The correct grease seal you would need for your Timbren Axle Less System part # A12WS545 that you have is the # 10-9.
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  • Rust Resistant Wheels Tires and Suspension For Off-Roading With Trailer
    We do offer many options of galvanized and aluminum wheels that do not rust or corrode. The Timbren Axle-less suspension system part # ASR400S02-G does not come in a galvanized option but the Timbren systems are powder coated with black powder coat to resist wear and corrosion. This kit is also made for smaller tires, so it doesn't accommodate a larger tire like you need for off-roading. I recommend Timbren Axle-less 1,200 lb suspension for Off-Road Tires part # A12WS545. This Timbren...
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