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  1. Trailer Axles
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  5. Spindles Only
  6. Drop - 4 Inch
Timbren Axle-Less Trailer Suspension - Standard Duty - 4" Drop - 5 Bolt Flange - 7,000 lbs
Timbren

Timbren Axle-Less Trailer Suspension - Standard Duty - 4" Drop - 5 Bolt Flange - 7,000 lbs

Part Number: TASR7KS02
$1,479.29
Trailer Axles
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Get more ground clearance and a smoother ride when towing with Axle-Less trailer suspension. Built-in shock absorption limits rattle and bottoming out. E-Z Lube, 4" drop spindle lowers deck height for easy loading. Fits any trailer frame width. Great Prices for the best trailer axles from Timbren. Timbren Axle-Less Trailer Suspension - Standard Duty - 4" Drop - 5 Bolt Flange - 7,000 lbs part number TASR7KS02 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Trailer Axles - TASR7KS02

  • 7000 lbs
  • Universal Fit
  • Spindles Only
  • Drop - 4 Inch
  • Rubber Spring Suspension
  • Timbren
  • Standard Grade

Get more ground clearance and a smoother ride when towing with Axle-Less trailer suspension. Built-in shock absorption limits rattle and bottoming out. E-Z Lube, 4" drop spindle lowers deck height for easy loading. Fits any trailer frame width.


Features:

  • Delivers a smooth, stable, quiet ride - regardless of load size
    • Jounce springs absorb road shock and support trailer's load
    • Rebound springs minimize body roll, rattle, and bottoming out
    • Built-in camber and toe-in reduce wear on your trailer's tires
    • Units work independently - what affects one side of your trailer won't affect the other
  • Eliminates axle beam to increase ground clearance and fit any trailer frame width
    • System replaces 1 trailer axle and suspension components
    • 2 Separate units bolt directly to your trailer's frame
  • Designed for your on-road adventures
    • Strong steel construction is built to last
    • Black powder coat resists rust and corrosion
  • Lowers trailer deck height for easier loading and unloading
    • 4" Drop spindle is built in
  • Allows for simple bearing maintenance with built-in grease zerks


Specs:

  • Application: single- and tandem-axle trailers that use regular tires
    • Tandem-axle trailers require 2 complete systems
    • Not recommended for triple-axle trailers
  • Quantity: 2 suspension units (without hubs)
  • Weight capacity: 7,000 lbs
  • Brake flange configuration: 5 bolt
  • Bolt hole diameter: 5/8"
  • Suspension travel: 2-1/2"
  • 3-Year limited warranty


Tire, Wheel, and Hub Compatibility

  • Tire size: ST235/85R16 or smaller
  • Wheel diameter: 16" or smaller
    • This assumes a wheel with zero offset
  • Bearings (sold separately)
    • Inner: 25580
    • Outer: 14125A or 15123
  • Races (sold separately)
    • Inner: 25520
    • Outer: 142376 or 15245
  • Seal: 10-36 (sold separately)
    • Inner diameter: 2.250"
    • Outer diameter: 3.376"

Note: This Axle-Less system requires crossbeam support. If your trailer frame doesn't have a crossmember in place, you can retrofit it with one, or you can add a support by running a piece of 2" x 3" steel tubing through the square holes cut into these units. You could also add a steel reinforcement bracket to the inside of the trailer frame.


Get more ground clearance and a more comfortable ride when you're towing with Timbren's Axle-Less trailer suspension. This suspension system provides great shock absorption to comfortably get you where you need to go and to protect your precious cargo as you travel - even on rough pavement. With 2 independently operating units, you'll get better handling when making tight turns. And because this system eliminates your axle and has drop spindles built in, you'll get a lower deck height without sacrificing clearance.


Timbren Axle-Less Suspension vs. Other Suspension Systems

There are many suspension options for your trailer or camper. So, what makes Timbren Axle-Less different?


Leaf Spring Example

Axle-Less systems are a definitive upgrade over traditional leaf springs, in part because they allow you to do away with your thru-axle, allowing for maximum clearance. As you've probably noticed, having a leaf spring suspension means that your axle will always hang at least a few inches below your trailer's frame, resulting in limited ground clearance and a high deck height. This may make it difficult to navigate rough roads and to load items into your trailer.


In addition, while leaf springs do a great job of supporting an even load, they may cause your trailer to bounce and rattle when it's empty or to bottom out with a heavy load. And they don't offer any type of shock absorption for a smooth ride - unless you have upgrades built in. With Timbren's Axle-Less system, gone are the days of dealing with these annoyances - this suspension is designed for a quiet, balanced ride, whether your trailer's fully loaded or empty.


Torsion Axle Example

A torsion axle is a step up in terms of shock absorption, and it provides more clearance than a traditional, leaf spring suspension, but that crossbeam will still hang down some. And if your torsion axle gets damaged in any way, it can't be repaired - you'll have to replace the entire thing with a setup that matches your exact trailer frame width.


With the Axle-Less system from Timbren, you won't have a low-hanging axle beam to get in the way when you're driving on rough roads. The drop spindles on this setup will also lower your deck height, making loading and unloading your trailer way easier. And the rubber springs and independent operation both combine to absorb shock and deliver a smooth, easy ride. In addition, the Axle-Less system can be easily maintained over time, and it will fit any trailer frame width, so you don't have to worry about potentially ordering the wrong size like you might with other systems.


Timbren Silent Ride Example

Another suspension upgrade on the market is Timbren's Silent Ride. This setup is a great option to reduce bounce and rattle because it has the same AEON rubber springs as the Axle-Less system. But the Silent Ride still requires an axle, so you won't get the same ground clearance or low deck height as you will with the Axle-Less suspension.


Timbren Axle-Less Suspension Parts

The Timbren Axle-Less suspension is designed with you in mind. All of the parts work together so you can tow your trailer comfortably - regardless of load size.


Timbren Axle-Less Suspension Parts Diagram

  1. The jounce spring supports the weight of your trailer and cargo. It easily absorbs road shock and is constructed of AEON heavy-duty, hollow rubber.
  2. The rebound spring delivers a smooth, stable ride - regardless of how much cargo is on the trailer. It controls the movement of the jounce spring to minimize trailer body roll, bounce, rattle, and bottoming out.
  3. The trailing arm with integrated hanger attaches 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 polyurethane bushings that never require lubrication.
  5. The E-Z Lube, 4" drop spindle is simple to grease. If damaged, it can be removed and replaced, saving you both time and money compared to a traditional axle.
  6. The built-in hole accepts 2" x 3" steel tubing (not included) to add support to your trailer's frame. The tubing sits higher than a trailer axle, providing additional ground clearance.

Installing the Timbren Axle-Less Suspension

Measuring Diagram

The first step in installing the Timbren Axle-Less suspension is to make sure that the mounting points for each unit are directly across from each other. The easiest way to measure this is to mark the desired mounting points on your trailer's frame. Then measure the distance between these points and the center of your trailer coupler. These measurements (A and B) need to be within 1/8" to keep your trailer frame square.


Once you have your mounting points lined up, you'll be ready to install the system. Drill 3 holes into your trailer frame at the desired mounting points. Then bolt each unit to the frame with Grade 5, 5/8" bolts (not included).


Keep Your Trailer Frame Square

Because Timbren's Axle-Less system eliminates your trailer's thru-axle, you'll have to find another way to get the crossbeam support that keeps your trailer frame square. You have a few different options to do this depending on your application and how much fabricating you're comfortable doing.


Crossmember Installation

If you're building a trailer, the best option is to begin building with the Timbren Axle-Less in mind and include a crossmember where you want to install the units on your frame. You can also retrofit an existing trailer with a crossmember.


Steel Tubing Installation

If you don't have a crossmember where you want to install the Axle-Less system (and you don't want to add one), pick up a section of 2" x 3" steel tubing from a nearby weld shop. This tubing will serve as a support to keep your trailer square. It will hang only about an inch down from your trailer frame, providing more clearance than a thru-axle.


After you've mounted both of the units to your frame, you'll need to drill 3 holes into the steel tubing and into the built-in, square holes. Then, insert the tubing through the holes and secure it with 3 bolts (not included) on each side.


Reinforcement Bracket Installation

The last option is to fabricate a reinforcement bracket that can be attached to the inside of your trailer frame and to the Axle-Less suspension. It may be a little harder to fabricate a compatible bracket than to mount steel tubing, but you may get additional clearance with this method.


Dimensions of the Timbren Axle-Less Suspension

The following diagrams show measurements taken on the Timbren Axle-Less suspension system.

Axle-Less dimensions front view

A B C D E F
14-5/16" 18-3/8" 1-1/2" 6-1/4" -3/8" 5"


Axle-Less dimensions top view

G H I J K L
5-3/4" 6-1/4" 5-3/4" 2-1/4" 3-1/4" 5-1/4"




ASR7KS02 Axleless Trailer Suspension System by Timbren - 4" Drop Spindle - Without Hubs - 7,000 lbs

Installation Details TASR7KS02 Installation instructionsAlternate Instructions TASR7KS02 Installation instructions



Ratings & Reviews

4.7

119 reviews
Get more ground clearance and a smoother ride when towing with Axle-Less trailer suspension. Built-in shock absorption limits rattle and bottoming out. E-Z Lube, 4" drop spindle lowers deck height for easy loading. Fits any trailer frame width.

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See what our Experts say about this Timbren Trailer Axles

  • Parts Needed to Add Tandem Timbren 7k Axle Less System to Trailer
    Hey Tyson, yeah I'd say you got everything right! Using the Timbren Axle Less kit part # TASR7KS02 will work great in a tandem setup. The hubs part # AKHD-865-7-1-K are correct for the spindles of that kit, the brake assemblies part # 23-464-465 match these hub/drums, and the wheels part # AM20761B fit the hubs as well. The fenders part # HP92VR would work too. Do you have a tire picked out already?
    view full answer...
  • Will 8 On 8 Inch Hub Work With Timbren Axle-Less Suspension System
    Unfortunately, the Trailer Hub Item # AH60880FCOMP will not fit the spindles of the Timbren Axle-less Suspension System, Item # TASR7KS02. Like you pointed out, this is the only 8 on 8 inch hub option we have for you. We do have other hub options that would fit the Timbren Axle-less Suspension System, Item # TASR7KS02, like Trailer Hub and Drum Assembly, Item # AKHD-865-7-2-EZ-K, but they are 8 on 6-1/2. Please let me know if I can help you with any other questions.
    view full answer...
  • 7k Timbren Trailer Axle that Gives Lower Profile
    It's hard to give you an exact deck height you'd have with the Timbren Axle Less kits we offer like the part # TASR7KS01 as it depends on the wheel/tire size you use and frame height, deck thickness etc. But if you are looking for the lowest profile possible the 4 inch drop version part # TASR7KS02 is the kit for you. To give you an idea on overall height though this will put the center of your trailer wheel exactly 3/8 inch below the frame of the trailer. So you could calculate the diameter...
    view full answer...
  • Hub/Drum Recommendations for the Timbren Axle-Less Trailer Suspension # TASR7KS02
    For the recommended hubs/drums that work with the Timbren Axle-Less Trailer Suspension # TASR7KS02, we suggest the Dexter Trailer Hub and Drum Assembly - 7K lb E-Z Lube Axle - 12" - 8 on 6-1/2 # 42866UC3-EZ. With these hubs, they not only maximize the total weight capacity of your Timbrens, they are also perfect for the E-Z lube spindles. This complete kit comes with races, bearings, and grease seals.
    view full answer...
  • Oil Bath Disc Brakes for Timbren Axle-Less Trailer Suspension
    Hey Donny, welcome back! The # ASR1200S04 uses a 3,500 lb axle bearing combination so for oil bath disc brakes you can use the Kodiak # KOD77FR. Then for the 7k # TASR7KS02 you can use the Kodiak # KOD33FR. Let me know if you need anything else.
    view full answer...
  • Trailer Hub Options For Timbren Axle-Less Trailer Suspension # TASR7KS02
    With the Timbren Axle-Less Trailer Suspension # TASR7KS02 rated for a 7,000lb capacity you will want to use either 2 of the Idler Hubs # AKIHUB-865-7-2-EZ-K or Hub/Drums # AKHD-865-7-1-EZ-K. We do have the Brake Kit # AKEBRK-7-SA if you go with the drum brakes. Either of these will pair well with the Karrier ST235/80R16 Radial Trailer Tire with 16" Aluminum Wheel # KE39JR or Kenda Karrier ST235/85R16 Radial Trailer Tire with 16" Black Mod Wheel # AM32743B depending on the size tire you...
    view full answer...
  • Axle Replacement for Dexter SLR P12 #13 Torflex Axle
    It took a little while to get your information from Dexter. Your axle is a #13 Torflex Axle which is rated for a capacity of 8,000 lbs. We don't have an 8,000 lb capacity replacement, but we do have 7,000 lb capacity Axle-less Systems you may want to consider or tandem axle applications to get you to your capacity needs. For the Axle-Less system you may want to consider the Timbren Axle-Less Trailer Suspension # TASR7KS01 or the 4 inch drop axle # TASR7KS02. These will allow you to...
    view full answer...
  • Will the Timbren Silent Ride Raise or Lower My Trailer Height?
    It seems like the end goal for this is going to be to lower your trailer a little bit; if I'm misunderstanding what the end goal is here please let me know. I'll start this off by saying that the Timbren Silent Ride # TSR14KT01 is not an air ride system and there are no components that inflate or deflate, so it's not going to be adjustable in the manner that you're hoping. What the Silent Ride system will do is create a much softer ride for your toy hauler by using rubber springs to cushion...
    view full answer...
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  • Which Disc Brake Kits Are Compatible With Timbren 5200lb and 7000lb Axle-Less Systems?
    The Timbren Axle-Less Trailer Suspension System - 4" Lift Spindle w/ Brake Flange - 5,200 lbs # TASR5200S03 you mentioned are indeed compatible with the Kodiak Disc Brake Kit - 12" Hub/Rotor - 6 on 5-1/2 - Dacromet/KodaGuard - 5,200 to 6,000 lbs # K2HR526DKG you mentioned. You will need two of the bearing kits # DBRKHW6EZ as the brake kit does not include bearings, grease seals, or grease caps. The Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange - Regular Tires -...
    view full answer...
  • Replacement Drop Axle for Trailer with Square axle and Brakes
    The parts I can see in the photo are a square tube drop axle, and the backing plate for drum brakes. Without knowing the capacity of the trailer axle, I can only make a guess and give you something approximate. We don't carry any square tube axles and don't carry any through axles that have a drop, but we do carry the Timbren Axle-Less Trailer Suspension with a 4" Drop Spindle w/ Brake Flange with 7,00 lb capacity # TASR7KS02. This will require a square tube to be used in the integrated...
    view full answer...
    Image 1 for
  • Where Will Hub Center of Wheel Be In Relation to Trailer Frame With Install of Timbren TASR7KS02
    When the Timbren Axle Less system part # TASR7KS02 is installed the center of the spindle will be 3/8 inches above the bottom of the trailer frame when unloaded. At full deflection (compression of the systems rubber springs), it will end up sitting 2-1/2 inches lower that that as well. So it would be then 2-7/8 inches above the trailer frame. I attached a diagram that has all of the dimensions of this system as well.
    view full answer...
    Image 1 for
  • Lowest Height 7,000LB Trailer Axle Along With Electric and Disc Brake Components
    We have a 94" # e35GR, 95" # e95GR or the Timbren Axle-Less Trailer Suspension # TASR7KS02 which are all 7,000lb axles with a 4" drop. These are going to be the lowest possible height 7,000lb axles we carry. As they come with a bare spindle you will need a brake kit like the Dexter Nev-R-Adjust # 23-464-465, and 2 Hub/Drums # 42866UC3-EZ. We also have a Disc Brake Kit # DE53YR if you are wanting to go with the superior braking from hydraulic brakes.
    view full answer...
  • What is Difference Between Timbren Axle Less Kits TASR7KS01 and TASR7KS02
    The difference between the two kits is that the Timbren Axle Less kit part # TASR7KS01 is a standard height kit where the axle center would be 3-1/2 inches below the trailer frame and the # TASR7KS02 has a 4 inch drop which puts it's axle center right at 1/2 inch above bottom of trailer frame. The bolt pattern of a 3 year old Dexter setup is going to be current as trailer bolt pattern standards haven't changed.
    view full answer...
  • Replacement for 7,000 lb Axle
    The axle you have is 87 inches long from hub face to hub face and 68-1/2 inches from spring center to spring center. While we do not have any axles of that size we do have a great option, the Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange - Regular Tires - 7K # TASR7KS01 or Timbren Axle-Less Trailer Suspension - 4" Drop Spindle w/ Brake Flange - Regular Tires - 7K # TASR7KS02. The Timbren axle-less suspension systems are simply bolted or welded so you do not have...
    view full answer...
  • Why Shouldn't Timbren Axle Less System be Used on Triple Axle Setup
    The problem with using the Timbren axle less with a triple axle setup is the lack of equalizers which distribute the weight of the trailer over uneven terrain like bumps evenly between the axles. With a triple axle Timbren Axle Less setup the full weight of the trailer would be on an individual axle at any given moment which would exceed the axle's individual capacity.
    view full answer...
  • Where Does Spindle of Timbren 7k Axle Less Install Relative to Trailer Frame
    The spindle height relative to the trailer frame that the Timbren Axle Less kit part # TASR7KS02 you referenced is correct as I verified this with Timbren just now. It is -3/8 inches because this is a drop spindle setup which means the trailer is designed to sit closer to the ground.
    view full answer...
    Image 1 for
  • How is the Weight Capacity of the Timbren Axle-Less Suspension Determined?
    If you are looking at a Timbren Axle-Less system like the # TASR5200S05, it is designed to replace one single 5,200 pound axle. This means that this is a combined weight capacity for both sides together. If you need more weight capacity, we also carry the 7k version # TASR7KS01 and the # TASR7KS02 (with 4-inch drop).
    view full answer...
  • Which Hub/Drum and Brake Assemblies Will Fit a 7k Timbren Axle-Less Suspension
    The parts you mentioned are all compatible and good choices to use together, so there's no worries there. I've listed the shipping weights of these parts below: Provider 235/75R17.5 Radial Tire w/ 17-1/2" Solid Center Wheel # TA56VR weighs 122-lbs total per combo (individual weights of these are not available) Dexter Trailer Hub and Drum Assembly - 7K lb E-Z Lube Axle - 12" # 42866UC3-EZ weighs 39-lbs each Timbren Axle-Less Trailer Suspension # TASR7KS02 weighs 181-lbs for the pair Dexter...
    view full answer...
  • Timbren Axle Less Kit for 6k Rated Utility Trailer
    We have a 7k rated Timbren Axle Less system with the part # TASR7KS01 which would work really well on a 6,000 lb trailer. This kit has brake flanges and a straight spindle and we also have a drop spindle option as well # TASR7KS02.
    view full answer...
  • Do You Have a 8,000 lbs Timbren Axle-Less Suspension System?
    No, I am sorry we do not. I checked with Timbren's website and their 7,000 lbs item # TASR7KS01 and item # TASR7KS02 are the highest capacity ones you can get with a spindle. Did not see an 8,000 lbs capacity option. The Timbren Silent Ride Suspension for Single Axle Trailers w/ 3-1/2" Round Axles item # T54FR, is rated to a 8,000 lbs capacity. If you let me know what lug pattern your wheels are I can find you a brake hub set up. What kind of trailer are you upgrading? You can comment...
    view full answer...
  • Recommended Axle-Less System For Two Tandem Trailers
    We do not offer beam axles that have the 7,200-lb capacity you mentioned, but we do offer axle-less systems from Timbren that have a 7K capacity that I recommend. I have attached a link to those systems you can check out. Although a bit more expensive, there are many fewer parts with the axle-less system, and they are much easier to install and maintain. The axle-less system I recommend is part # TASR7KS01. This has the 5-bolt brake flange attached. This system also has an EZ lube spindles,...
    view full answer...
  • Recommendation for Smallest Tire to Create Lower Deck Height on 7 Ton Trailer
    The best trailer tire for your setup is going to depend on the amount of axles that are on the trailer. This info is needed to ensure that the combined load capacity of all the tires will meet or exceed the 7 ton loaded weight of the trailer. For example a tandem axle setup would give you 4 tires so each tire by itself would need a load capacity of at least 3,500 pounds. For this type of capacity you are going to need at least a 16 inch tire and wheel. The smallest 16 inch tire we have...
    view full answer...
    Image 1 for
  • Timbren 7,000 lb Axle-Less Suspension System
    The system you attached a photo of is the Timbren Silent Ride Suspension for Tandem Axle Trailers w/ 2-3/8" Round Axles - 7,000 lbs # TSR7000T04 which we absolutely offer. I'm not 100 percent sure if you were looking for this or the axle-less suspension system, which we do carry with a 7,000 lb capacity. For that you would need the Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange - Regular Tires - 7K # TASR7KS01 or the same system with a 4" drop, the Timbren Axle-Less...
    view full answer...
  • What Timbren Axle Setup do You Recommend for a Custom Trailer with 5500 GVWR?
    Since you are planning on a custom fabrication for a customer that has a 5500 GVW, a great option is the Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange - 7K # TASR7KS01 or the same model with a 4-inch drop # TASR7KS02. A tandem axle system will ultimately give you more support, but a single-axle system will work just fine as it is (especially with a 7k weight capacity). Since the Timbrens come with EZ lube spindles, I recommend the Dexter Trailer Hub and Drum Assembly...
    view full answer...


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