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 - Spindle Only - Regular Tires - 1,200 lbs

Timbren Axle-Less Trailer Suspension System - Spindle Only - Regular Tires - 1,200 lbs

Item # ASR1200S02
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Our Price: $404.42
Trailer Leaf Spring Suspension
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Shipping Weight: 59 lbs
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ASR1200S02 - Axle Replacement System Timbren Axles
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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 - Spindle Only - Regular Tires - 1,200 lbs part number ASR1200S02 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (155)
  • Q & A (12)
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Timbren Trailer Leaf Spring Suspension - ASR1200S02

  • Axle Replacement System
  • Axles
  • Universal Fit
  • 1200 lbs
  • Timbren
  • Spindles Only

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 accept trailer 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
  • 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
  • Weight capacity: 1,200 lbs
  • Quantity: 2 suspension units without hubs
    • Works with Dexter 1,000-lb hubs (8-91-05UC1-EZ)
  • 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 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-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



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






Customer Reviews

Timbren Axle-Less Trailer Suspension System - Spindle Only - Regular Tires - 1,200 lbs - ASR1200S02

Average Customer Rating:  4.7 out of 5 stars   (155 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.

- ASR1200S02
by:

I have an old sears game fisher trailer that was modified to fit my 12' Livingston, and you can't find parts to fit those old hubs, etc. so I switched it over using the Timbren system. Installation was a breeze for me and a friend, less than 3 hours total time using regular garage tools, and I couldn't be happier with the results. I went with a square bar instead of "boxing in" the hub members as it was easier and less work. I'd recommend the Timbren Suspension to anyone...



- ASR1200S02
by:

ok, so firstly, the parts came well packaged and undamaged. What you need to know is that you may have to add angle iron or box tube or other metal parts NOT PROVIDED to make the hubs line up with where they were on your previous suspension (if this is a replacement). This is important to assure that the trailer rides at the same height, and that the tires are located in the same place in the wheel wells. In my case I had to add two pieces of box tube to the frame, and a third one that spans across from the left to the right axle-less suspensions. Also check that your trailer frame is square so that the toe-in adjustment is possible. All of this was fairly simple. Now to the satisfaction of the ride... I was replacing a leaf spring suspensions because it was making too much noise over bumps, and not damping the response to bumps well enough, with my very light weight boat (200 lbs). With the new parts installed, and radial tires replacing the bias ply tires I had, I do not hear the trailer at all now. I don't feel it bounce any more either. I completely did what I was looking for. I also want to mention that there were other sources of noise that I took care of as well. The hitch tongue was loose in the receiver, my trailer jack handle was flopping and making noise, as was the handle on the boat crank. With the new suspension and tires, and these fixes, I am ready for my cross country trip with the boat.



- ASR1200S02
by:

400 miles on the trailer, seem to work well. Great paperwork and instructions.



- ASR1200S02
by:

The greatest suspension I have ever had. On my wheel fish house, drive down road and get to lake everything is still where I set it. Can’t believe how smooth it rides. Will buy more when needed.


Comments
Still perfect
Chuck - 01/13/2020



- ASR1200S02
by:

I bought an 18 ft boat trailer and built a rack for carrying kayaks. The axle was rated for 2000 lbs on leaf springs. The trailer bounced like a basketball. After watching the video for this suspension system, I figured to give it a try. This product far exceeded my expectations. The trailer rides like it's floating on air, and the next best thing is all the spring rattling is gone. I would never go back to a leafspring suspension again. I can't believe how well this works.



- ASR1200S02
by:

Every thing is fine.



- 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


- 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...



- 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


- 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.



- 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


We use Timbren's ASR5200S03 on all of our XOC and XOC-R trailers. These suspension are well built and have always performed well for us.



- ASR1200S04
by:

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


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.



- A12WS545
by:

Review from a similar Axle-Less Suspension 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


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


- A12WS545
by:

Review from a similar Axle-Less Suspension 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!


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



- 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



- ASR3500S04
by:

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


Very nice quality, I had to call Timbren with a question very good company to deal with and etrailer is a first class company very good customer service.



- A35RS545E
by:

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


Products were delivered exactly as described. The tracking information and communication during the ordering process was also above expectations. I’d order from etrailer again.



- A20RS545
by:

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


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.



- A20RS545
by:

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


Installed these axels on Custum boat trailer to fit on top of our Jeep... worked perfectly Thanks



- TASR5200S03
by:

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


The perfect application for my custom p roject...



- A35RD545
by:

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


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!!!


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Ask the Experts about this Timbren Trailer Leaf Spring Suspension

  • 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...
    view full answer...
  • What is Total Weight Capacity of Timbren Axle-less Suspension System # ASR1200S02
    The 1200-lb weight rating of the Timbren Axle-Less Trailer Suspension System # ASR1200S02 is the total for both units together, much the same as if they were actually a single axle. In your application for an 8 x 10-foot trailer whose loaded weight will be 2000-lbs you'll need a higher-rated set of Timbrens, say their # ASR2000S01, or for even more capacity their 3500-lb-rated # ASR3500S05.
    view full answer...
  • What is the Spindle Length Where the Hub Fits on the Timbren Axle-Less Trailer Suspension System
    The spindle that is used on the Timbren Axle-Less suspension system, # ASR1200S02, is spindle # R104BTREZ. I took some measurements of the spindle. From the inner bearing stop to the threaded portion is 3-5/16 inches. To the end of the threads it is 4-3/16 inches. And to the end of the zerk fitting it is 4-1/2 inches. I made a video that explains where exactly I measured.
    view full answer...
  • How To Upgrade Weight Capacity on Harbor Freight Trailer
    I do have an option for possibly upgrading the weight capacity of a Harbor Freight trailer but we wouldn't have any traditional setups for this application. Instead, what we can offer is a Timbren Axle-Less Trailer Suspension System like part # ASR1200S02 which replaces the existing axle and suspension. It's rated at 1,200 lbs but that won't be your new limit. The axle rating only needs to be rated for around 85-90% of the trailer's loaded weight. The Timbren Axle-Less Trailer Suspension...
    view full answer...
  • Recommended Timbren Axle and Wiring for Light Custom Made Trailer
    For a 661 pound (300 kg) trailer we have the Timbren 1,200 rated system part # ASR1200S02 that should work great. The Timbren Axle-Less Systems are a great option when building a new trailer since their 2 independent units eliminate the need for a thru axle and they can fit any frame width. For idler hub assemblies that will work perfectly with these spindles I recommend the Dexter # 8-91-05UC1-EZ that features a 4 on 4 inch bolt pattern. There is not an axle kit available that...
    view full answer...
  • Can Timbren Axle-Less Trailer Suspension System # ASR1200S02 be Used with 18.5 X 8.5 - 8 Tires
    The tire size you referenced, 18.5 X 8.5 - 8, has a metric equivalent which is 215/60-8, but this does not come into play when considering the Timbren Axle-Less Trailer Suspension System # ASR1200S02. This Timbren system can be bolted or welded to your trailer frame. What matters for using this system is that your existing hubs must have the same bearings, races and seals as the hubs for which this system is intended. The compatible inner and outer bearings are L44649, races are L44610...
    view full answer...
  • Replacement Axle and Suspension System for Small Boat Trailer
    I have a set-up that may work for you, but unfortunately we do not have exact matches for the parts you are looking for. Since the number of leaves doesn't directly relate to the capacity, the main concern when choosing leaf springs is the length of the spring. The only 26 inch long leaf-spring we have is a 6-leaf spring for 4,500 pound axles, # SP-256275. We do not carry any galvanized axles, and none of the common axles that we carry have an overall length of 54 inches. The best...
    view full answer...
  • 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...
    view full answer...
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  • Replacement Axle Recommendation for a Motorcycle Trailer with Torsion Axles
    The best solution I can recommend for you would be a Timbren Axleless system like part # ASR1200S02 as this will work similarly to what you have and has a 1,200 lb capacity. The lightest capacity straight axle we have is 2,000 lbs so I would not recommend it for you. I attached a page that has all of the Timbren systems we offer in the 1,200 lb capacity range in case you need a drop spindle or want a setup with hub already included.
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  • Replacement Hubs for Old Trailer Axle Using Timken 1380 Inner/17580 Outer Bearings
    The ID for the TImken 1380 is .875 and the 17520/17580 is .625. None of the hubs we offer are compatible with spindles that have a diameter that small. Honestly, you'll likely have a difficult time locating replacement hubs compatible with that spindle and your best bet will be to replace the axle for one that has spindles that are compatible with readily available modern parts. To determine the replacement axle you'll need, you'll need to find the hub face to hub face dimension as...
    view full answer...
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  • Recommended Axle For Narrow Canoe Trailer
    I may have an option that will work for you, but the narrowest standard axle we offer is just over 57" long. Instead I recommend taking a look at the Timbren Axle-Less Suspension which are available in quite a few different weight ratings. There is the 400lb # ASR400S02 which would use idler hub # 8-91-05UC1-EZ that has the common 4 on 4" bolt pattern. The 1200lb # ASR1200S02 which uses the same idler hub # 8-91-05UC1-EZ, and the 2000lb # A20RS545 which comes with idler hubs with...
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  • Trailer Axle Solution for Small Welding Trailer with Narrow Wheelbase
    That's shorter than what we have standard axles for but we can help with a Timbren axle less system like part # ASR1200S02 and then with 5 lug hubs like # AKIHUB-545-2-G-EZ-2K but if you need a standard axle you'd probably need to find a trailer shop near you who can order you in custom axles.
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Info for this part was:

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Expert Research:
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Expert Research:
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Employee David L
Written by:
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