Independent Suspension System. mary 06-07-2020 #2. grambini. The book retailers set their own prices which can vary substantially. But all take up needed central space. The centrally located hitch also causes it to adopt a duck-like waggle as it sways. That trailing arm suspension, however, introduces a considerable lever effect (Moment Arm) adding to that sway. Independent suspensions are fairly dear compared to the traditional leaf spring setups. At the time of posting this blog, the prices are: Tandem 7K Independent Suspension and Disc Brakes: $6,499; Tandem 8K Independent Suspension and Disc Brakes: $6,900; Triple 7K Independent Suspension and Disc Brakes: $8,850 Lastly, the new tires are to be inflated to 125psi, much higher than old our tires which were 80psi. The relative merits of independent and non-independent suspension systems – and leaf and coil springs – will not be discussed in this article, but suffice to say, independent set-ups are far more sophisticated in providing more complex movements of the wheels/tyres when subjected to cornering, braking and road bump forces. The HQ19 is the biggest, baddest travel trailer available from Black Series. Superior Ride Control Without question, the patented technology of STi’s independent suspension delivers superior ride control, side-to-side load leveling and axle-to-axle load distribution. Most use far too short stiff leaf springs intended mainly for garden trailers. STi’s custom-made approach allows you to install your suspension without the usual hiccups associated with ill-fitting components that don’t match the existing trailer. We'll aim to keep a selection of the better prices above. Whether in the harsh Australian outback or northern Canada, it’s built to last. • Improved towability & handling • Better protection of trailer, components, & contents from damaging road shock • 5 year warranty • Independent wheel action allows each wheel to walk over bumps Independent suspension and Goodyear Wrangler all terrain tires. Further, a caravan with trailing arm suspension does not roll as such. As time has gone on trailing arm independent suspensions have actually been trickling down to trailers ever lower in their purchase price. First, with so many RV upgrade opportunities, let’s look why you’d want to upgrade your stock 5th wheel or trailer suspension. They also tramp up and down. It is not an engineering issue. It rolls around a diagonal axis that is at tow ball level (and centred) at the very front that causes it to sway around the ground level at its wheels. Any bookshop, whether online or bricks and mortar, can order copies of Why Caravans Roll Over. That wheel acts as does a gyroscope. The company is best known for its high quality running gear range, including axles, brakes and suspension products. Use also the associated shock absorbers. 1-800-753-0050 Independent suspension for the most part allows greater wheel travel and more ground clearance – as such is known to perform better when taken off sealed roads. But is it really as simple as that? On a side note – there is a weight difference of approximately 100Kg between the two variations – with independent … This contains several rubber elements that are placed within the hexagon tube running across the trailer. ), can reach that as it is rated to 150psi, though the dial shows us in the red at 125psi. An independent load sharing suspension system is of the highest quality. Despite their venerable history leaf springs do a pretty good job, and any trailer fitted with them can generally be regarded as being well equipped. A US-led wish for softer suspension, however, caused an unexpected effect. A car-type strut or transverse wishbone independent suspension has a much lower roll centre (the point about which the vehicle will tip over) than a beam/leaf and most trailer independent suspensions are trailing arm types that also have low roll centres. A Guide to Clear Caravan TV Viewing. so, going forward we are considering having the MorRyde independent suspension added to our unit. For many people towing a trailer of any kind – whether it be a caravan, camper trailer, boat or merely a weekend hauler to take junk to the tip – the suspension that’s under that load behind them is nothing more than a conglomeration of springs, shock absorbers, bolts and bars and does the job of separating the wheels from the rest of the package. The chromoly-steel bars are designed to significantly improve handling and side-to-side stability, especially when cornering. Conventional caravans are towed by a centrally-mounted hitch that is about 400 mm above ground. As this article explains, caravan beam axles are generally better. Apart from trivial tyre depression a beam axle caravan‘s chassis always remains vertical to the surface. In this system there is no transfer of impacts from one side of the trailer to the other, the wheels remain vertical throughout their travel and there is a greater range of movement available. A Willow RV is designed purely for your enjoyment while travelling and is outstanding value for money, being one of the most highly competitive vans available on the market. Terms & Conditions Whew! A US-led wish for softer suspension, however, caused an unexpected effect. The Axle-Less Trailer Suspension As noted above, and in the image here from eTrailer.com, the Timbren product consists of 2 modules, a left and a right, that attach to a trailer frame and provide independent suspension for a wheel on each side of the trailer. The caravan‘s springs may deflect – but not by much. The MORryde Independent Suspension System (IS) delivers premium towing performance for 5th wheel and travel trailer owners. Because of this effect side forces cause a trailing arm suspended caravan to sway to a far greater extent. Because torsion axles are designed to work independently, they do not provide equalization between the axles when used in a tandem- or triple-axle system. Explains in detail every aspect of tow vehicle and caravan stability. The system is fully bolted on and doesn’t require any further adjustment. Our compressor, the Viair 400P-RV (which we love, this thing is awesome! It was realised that this issue is inherent with beam axle located steered wheels. Do travel trailers need independent suspension is a marketing issue. When it comes to suspension performance, it's all about suspension travel. For those traveling offroad the lack of a cross-vehicle axle beam can also provide ground clearance advantages. Such sway can be avoided by using the horizontal arms (as on the front of most cars) – or by using two pivoted full-width beams as in the Track Trailer TVan. The Axle-Less suspension has no through axle. Fully insulated walls, floors and ceiling with water-proof undercarriage. Tandem 7K Independent Suspension: $4,199: Tandem 8K Independent Suspension: $4,899: Triple 7K Independent Suspension: $6,399: Triple 8K Independent Suspension: $7,149: Tandem 7K Independent Suspension and Disc Brakes: $6,999: Tandem 8K Independent Suspension and Disc Brakes: $7,499: Triple 7K Independent Suspension and Disc Brakes: $10,399 A variation on the basic trailing arm set-up, in which spring load is born by a metal coil, has been the air ride suspension, with the load being born by a pressurised rubber bag. Do NOT follow this link or you will be banned from the site. This effect is even more so at the extreme rear. Independent Suspension Why to Upgrade. All rights reserved. you will find it tows like a dream. If not adequately dampened, this so-called gyroscopic precession builds up alarmingly. Spring flexes to resist shock and also ensures a smooth ride. While normal suspension systems will break down after extended periods of time going off road, an independent load sharing suspension system will last a long time. These attachment points can be either simple bolts through a bushing manufactured from some durable material such as nylon, or a greasable pin. MORryde offers four different packages for Independent Suspension depending on which weight you want and how many axles you need. A torsion bar is round bars usually made of steel that connect a vehicle’s frame to a control arm — the torsion bar twists and bends with the road to provide a … Leaf springs continue to be manufactured in large numbers and despite having been around for over a century still do an excellent job of absorbing the blows from the rough surface of the road. AL-KO’s Independent Rubber Suspension (IRS) has offered a whole new range of options for those seeking light weight and simplicity in their trailer suspensions, with the manufacturers of a number of lighter caravans now adopting it. SRE4000™ Leaf Spring System for Tandem Axle (SRE2-733X) by MORryde®. As one or other wheel of a softly sprung beam front axle rises or falls over undulations it causes the often fast-spinning wheel to rise and fall in an arc. My Caravan & Motorhome Book goes into this at greater depth. We are very pleased with Custom RV’s responsiveness and their assurance that the issues we are dealing with are not unreasonable to repair. When it comes to a vehicle’s roll-over resistance the beam/leaf combination doesn’t compare with the best independent designs. Do any of you have feedback on this system? Making choices over suspension can require the wise advice of experts, so discussing your options with someone such as the team at AL-KO is a smart move before you invest your hard-earned money. > How To Find Safe Drinking Water In The ... How To Find Safe Drinking Water In The Bush, Mobility Issues? It is a complete bolt-on system which requires no later adjustment, it is self-damping so does not require shock absorbers (though these can be installed to assist in control and handling) and thus can enable complete control over the built height of the trailer. As with a caravan‘s, beam axled car rear wheels are subject to similar forces. Do caravans need independent suspension is a marketing issue. Featuring the same independent suspension design that has made is infamous, that has been adapted into a dual axle design to help disperse the weigh more evenly and help keep a smoother, more stable ride for safer towing. When a side force is applied the sprung mass rolls around an axis that is about the same height as the tow ball. Answer: Yes, the ICS is by the Australian made Campaign and manufactured in our Wynnum workshops by Aussie workers. Independent Caravan Suspension Suspensions in which the left and right wheels can move completely independent of each other are classified as independent suspension. suspension system replaces your trailer's existing leaf spring suspension and can eliminate the need for an axle. Torsion suspension systems are somewhat more costly, on average, than leaf-spring setups. That means you get a better ride, more control and improved performance from your suspension. The independent action of the suspension reduces roll when your trailer is cornering ... EZ-Lube Spindles; Axle Replacement System; Rubber Spring Suspension; Axles; 5 on 4-1/2; Universal Fit; 400 lbs; Timbren; Idler Hubs; 5 on 4-1/2 Inch Hub Go anywhere. However, they do suffer from changing wheel camber as either side of the axle rises and falls as the wheels pass through their arc of travel and any change in geometry on one side of the trailer does impact the geometry on the other because of the interconnecting axle, leading to bump steer issues. The design is a trailing arm style — generally good for stable action. This has traditionally been a set of tempered metal leaves bound into a group or a coil spring fixed between the axle unit or an attached arm and the trailer’s chassis, but the advent of air bags and rubber elements as torsional members in a cross-trailer system has opened the game even further. To receive regular towing hints, tips sign up to our newsletter today! That's the nature of the independent suspension and not necessarily a bad thing. Until 1930 or so most cars had beam axles (typically leaf sprung). INDEPENDENT RUBBER SUSPENSION. whilst swaying. Reyco Granning provides suspension solutions such as steer, drive, and tag axles for both RV and Bus vehicles. Built-In Toughness. Smooth out your ride with an upgraded suspension system for your fifth-wheel or travel trailer. It was custom built heavy gauge 7x5 offroad fully galvanized trailer GVM 1600 kg with Al-Ko Enduro Independent Trailing Arm Suspension, 10 inch Electric brakes, Sunraysia offroad wheels, 20 litre water tank, Galvanised checkerplate electrical storage/ tool box, gas and water bottle mountings, spare wheel, seperate easily accessible comp $5,750 If the Gunbarrel Highway is on the agenda, then a genuine independent suspension with shock absorbers is necessary. AL-KO’s Independent Rubber Suspension (IRS) has offered a whole new range of options for those seeking light weight and simplicity in their trailer suspensions, with the manufacturers of a number of lighter caravans now adopting it. Air ride suspended trailers are said to “glide” over the roughest tracks, but having the capacity to modify the ride or height does require an on-board supply of air, either from a cylinder or an air compressor. AL-KO International Pty Ltd manufactures, markets and distributes a comprehensive range of products for the trailer, caravan and RV markets in Australia and New Zealand. How To Make Your Caravan Holiday Accessible, Get the Picture? The ideal beam axle caravan suspension needs to be similar in concept to that of the front of the superb 4.2 litre TD Nissan Patrol: a few DIY camper trailers actually use that (with a light beam axle). We install and recommend Vehicle Components and AL-KO Enduro Indepedent Suspension which will give you the confidence to go anywhere. The opposite is closer to reality. Just ask.ISBN: 978-0-6483190-6-1, Copyright @ 2002 - 2020 RV Books. The Axle-less trailer suspension can take the abuse of the world’s harshest trails. This system reduces stress on the frame and protects your trailer from road shock. This is what you need to know to be safe on or off the road. Exterior galley with stainless steel countertop and integrated table Customers are welcome to either pickup or take advantage of our low freight rates. For heavier duty purposes leaf springs are generally located by bolts through the eyes of the main leaf at either end, with the rear attached to a pivoting shackle that is itself attached to the chassis. First and foremost, choosing the right suspension for your van comes down to where you’ll be taking it. For caravans the type mostly used (trailing or leading arms) has a major downside. Light trailers, such as those used to carry waste to the tip, often use what are termed ‘slipper springs’, where the front of the spring set is anchored to a pivot point and the rear of the main leaf slides against the chassis inside a metal box. At the RV Service Centre we offer the leading independent suspension products. It is not an engineering issue. A few other had too: Lanchester around 1900, and Morgan a year or two later. Torsion bars are popular in the RV world and may be used in an independent system or in combination with other types of suspension systems. US engineers seemed unaware that Lancia had been using independent front suspension for a long time. Privacy Policy. It was also realised that it can only be fully overcome by having the wheels rise and fall vertically. The major issue now is that the centre of gravity is at much the same height as with as a beam-axled caravan. Independent suspension also offers greater ground clearance, and permits wheel alignment adjustments such as toe and camber. When one caravan wheel traverses a bump (or depression) the front of the caravan rocks around that hitch. Enhance travel experience with smoother towing It attempts to swing sideways. Unable to display Facebook posts.Show errorfunction cffShowError() { document.getElementById("cff-error-reason").style.display = "block"; document.getElementById("cff-show-error").style.display = "none"; }, © 2016 Without A Hitch. This is readily seen by looking in the rear-view mirror as a caravan crosses rough going. Testing out the new DOT trailer with Independent Suspension and comparing it to a leaf sprung DOT. Unlike leaf springs, torsion systems are true independent suspension systems. == Website designed by Daniel Weinstein, Why Caravans Roll Over….and How to Prevent It, Supply cables for caravans – choices of current capacity and length, Weight distribution hitch setting up – how much correction is needed, Battery charging via generator – how to speed it up, Electrical converter problems in caravans – problems when used for free camping, Australian RV rules and regulations – a constantly updated general guide, Napisan and Look-A-Likes safe for Septic Tanks – a professor’s view, Need for a WDH – avoid using one if possible, Dc-dc charging – how to speed alternator charging, Wheels falling off trailers – and how to stop it happening. All Rights Reserved. As a result, many locally-made caravans have soft long-travel suspension that mainly deflects when least needed i.e. A core component of any suspension system is a spring. A pair of high slung spare wheels weighing (say) 80 kg (175 lb) has an effective mass of many times that weight. Learn more about our products on our website. The front wheels swing violently from lock to lock. It’s unrealistic to think that a standard seven leaf spring beam-axle setup will be effective in extreme offroad conditions. The latter has advantages in offering a softer ride but requires regular maintenance and lubrication, especially where used in dusty or wet environment, such as the outback. Conventional trailer suspension consists of one or more axles that are supported by leaf springs. The photos below showcase an onroad Jayco Basestation which our professional team upgraded to an offroad caravan. The IRS or Independent Rubber Suspension provides a plethora of options for those who want their trailer suspensions to be simple and light. This is related to speed – and became increasingly serious as cars became faster. As this article explains, travel trailer beam axles are generally better. Getting to grips with the different types of trailer suspension. This has three rubber elements fitted within a hexagonal tube which runs across the trailer. Given the correct weight distribution etc. | Deep cycle RV battery powers ceiling fan, LED lights and USB ports. Couplemate Trailer Parts sells only the best quality Independent Coil Suspension Kit and caravan spare parts throughout Australia. Essentially a suspension system is designed to connect the wheels and brakes to the body of the trailer and to absorb the worst of the physical blows imposed by the road surface. When traveling down the highway, why worry about protecting your cargo from damaging road shock? About Without A Hitch (The effect when swaying is not unlike a camel bending both legs on the same side.). | You can see extremes of camber and toe on race cars. Application has been deleted. Hence many to this day (particularly 4WDs) retain beam rear axles. About product and suppliers: 2,246 trailer independant suspension products are offered for sale by suppliers on Alibaba.com, of which travel trailer accounts for 56%, trailer parts & accessories accounts for 3%, and other suspension parts accounts for 1%. Without A Hitch is the place you can turn to for up-do-date information... Error: Error validating application. 2000kg rated with iron man shocks and boss air bags suspension includes... $3,250.00 Add to Cart As they are not free to swivel, however, there are no unwanted effects. If you find this of interest please Link to it on appropriate forums – and do please tell your friends to read it. This removes all obstacles on the trail. Sadly, however, little work is done in Australia to develop properly engineered beam axle suspension. These are both light and cheap and easy to install but have limits and are not recommended for heavy use. It is essentially a properly located hollow section (or I beam) axle with well-damped coil springs or airbags. 4. In recent years there has been a strong movement, especially under higher end caravans and camper trailers, to install coil springs on independent trailing arms, such as AL-KO’s new Enduro Cross Country and Outback systems. Until 1930 or so most cars had beam axles (typically leaf sprung). This may not be noticed in normal driving but becomes only too apparent in excess cornering speed, an emergency swerve, or air pressure forces from a passing truck. As the front wheels are connected by a horizontal track rod, if one rises in an arc it causes the other turn likewise. Do anything. huntsman products off road independent air bag suspension. Willow RV Chassis and Suspension. There is one exception but its spring leaves are really too short for caravan use. The Al-KO trailing arm suspension introduces a similar effect but as it has far less movement the sway is minimised. There is thus very little lever effect (Moment Arm) to increase the effect of roll forces. Toe is when the wheel isn’t aligned quite straight with the trailer, pointing inwards or outwards a touch; and camber is when the wheel is leaned in a bit. It must also absorb noise while maintaining the handling of the trailer behind the vehicle. Roadmaster Suspension Solutions| Known for the Comfort Ride line of trailer shocks and slipper springs, Roadmaster Suspension Solutions offers RSS Anti-Sway Bars for late-model full-size tow vehicles. Many have dual shock absorbers per wheel – yet towed by 4WDs that cope adequately with only one per wheel. An independent load sharing suspension system is also good in case you are going to go off the grid. Without A Hitch is the place you can turn to for up-to-date information, practical advice, "how to" guides and handy tips for your caravan, trailer and anything else worth towing. Sleeping area includes queen size mattress and overhead cabinets. This has three rubber elements fitted within a hexagonal tube which runs across the trailer. The spring deflection should be such that (prior to the shock absorbers being fitted) the laden caravan should bounce on its springs at about twice a second. This permits a range of advantages for the user, from control of ride height and stiffness over varying terrain, to levelling options when parked – a very handy item for those in caravans or camper trailers. Well, no, and having a basic understanding of your trailer’s suspension, what it does and how it does it is a useful step towards appreciating the need to maintain and care for it. And independently. The simplest way is to use the rear leaf springs from a Nissan Patrol or Hilux, minus a leaf or two, and a proprietary hollow section steel beam axle (or I beam). Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 3,500-lb axle. 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