SUSPENSION SPRINGS PERFECTLY POSITIONED FOR ANY CHASSIS. Egon von RUVILLE GmBH Billbrookdeich 112 22113 Hamburg Germany Tel.: +49 40 73344-0 Fax: +49 40 73344-199 info@ruville.de www.ruville.de NEW IN OUR PORTFOLIO: Pre-tensioned springs Torsion-bar kit for Renault Kangoo rear axle Special tool for torsion-bar kit
SUSPENSION SPRINGS FROM RUVILLE SAFETY AND COMFORT ARE OUR PRIORITY. QUALITY AND PRECISION IN PERFECTION WHY OUR SPRINGS HOLD WHAT WE PROMISE. Tradition and innovation characterised by quality. The engine and chassis spare part solutions from Ruville have been tried and tested for over 90 years. As a specialist in intelligent repair concepts, we operate according to one clear principle: only quality lasts in the long term. Our requirement for all products is therefore always the specification of the vehicle manufacturer. With constant new innovations, we always keep pace with the times and therefore deliver the latest technology. OE quality and innovation are the standards by which we make our mark. This is signified by our quality seal which can also be found on the Ruville packaging. A strong line for our product range: suspension springs. Our quality promise in the chassis area is naturally one that we also honour for the product line of car suspension. Benefit from our technical competence with a product that must be absolutely reliable and obtain suspension springs under the best conditions: Strict supplier selection Independent product testing Latest logistics Comprehensive advice Convincing price-performance ratio High loads demand the best quality. Suspension springs make an important contribution in respect of safety and travel comfort. Over the years, however, the surface coating can be damaged by the millions of compressions and expansions as well as stone chips or extreme loads for example such as overloading. As suspension springs are exposed to dirty and salty water largely with no protection, there is a high risk of corrosion on damaged surfaces. The possible result: impaired durability of the springs and even premature failure. The suspension springs should be checked regularly so comfort and safety do not fall by the wayside even after several years. Quality on the test stand. Before a spring goes into production, all the relevant dimensions and spring characteristics are determined and an initial test phase is conducted on the respective vehicle. Fine tuning takes place on the basis of this result: the spring is calculated precisely and further tests follow, for example such as alignment with the shock absorbers safety is the top priority. The spring type therefore undergoes extensive tests after development and initial production. The intrinsic values of our springs: experience and reliability. Our serial suspension springs are produced on the basis of this knowledge. All Ruville spring types are produced entirely in Europe in high-quality spring steel and in accordance with quality directive ISO 9001. Independent testing to ensure OE standard. The high quality standard of Ruville products is reflected in intensive component testing in co-operation with Germanischer Lloyd and the Rhenish-Westphalian Technical University of Aachen (RWTH). The product line of suspension springs also undergoes extensive testing by our independent testing partners. An example as an illustration: Goods inwards inspection is an important component of our QA system. The OE-compliant series quality is checked here. The following test diagram illustrates the checking of the spring characteristics. Force [kn] 1 0-1 -2-3 -4-5 -6 Spring characteristics 896806 (Ruville no.) and 55020-B11410 (OEM) -7-150 -100-50 0 50 100 150 Travel [mm] 896806 55020-B11410 2 SUSPENSION SPRINGS SUSPENSION SPRINGS 3
MATERIAL SELECTION AND PRODUCTION FIRST-CLASS PRODUCTION PROCESSES FOR TOP-QUALITY SPRINGS. Extremely powerful due to the latest material and production technologies. Maximum tensile strength The basis is a spring wire that has been induction-tempered and surface layer optimised and that has a tensile strength of up to 2050 MPa. Constant quality With the aid of cold shaping, the modern calculation methods and the current winding machines from the latest generation, even complex springs can be wound reliably in constantly uniform quality. Reduced tension The tensions in the material, which occur in the tempered material during the cold winding process, are reduced in an optimised low-tension annealing process without reducing the strength of the material. Optimised material tensions As a result of the pre-setting and setting process, appreciable length variation of the springs during vehicle operation is ruled out. The setting process also optimises the material tensions for long durability of the springs. Long durability Through various combined shot blasting processes, optimum pressure savings are generated in the surface area, which has a great impact on the durability of a spring. High-quality processing In a combined process with thin zinc phosphating and a high-quality powder coating applied over this, Ruville springs are designed for long-term use. Precise testing After surface coating, every Ruville spring is subject to 100% testing. The modern test machines record a strength-travel characteristic curve and automatically compare this with the specifications. REPLACEMENT RECOMMENDATIONS HEAVY STRAIN. DOUBLE DEMAND. Greater focus on springs. Wear is inevitable where strong and constant movements generate dynamic forces. Defective springs affect the driving behaviour and reduce the driving safety. Even in the general inspection, greater attention is therefore paid to the condition of the chassis components i.e. also to the springs. Tips for replacement double lasts longer: Always replace springs in pairs. Springs with different lifetimes on the same axle can cause the right and left sides to respond differently: there is a negative impact on driving behaviour and driving safety is no longer guaranteed. Moreover, unnecessary costs from prolonged workshop visits are avoided. Primary material Winding Setting Surface coating Testing 4 SUSPENSION SPRINGS Broken or fatigued springs also have effects on other components in the chassis for example, the coupling rods are affected more, as there is greater strain on the stabiliser and the bushes. Ruville springs are compatible with all current shock absorbers and perfectly matched to the respective vehicle model. SUSPENSION SPRINGS 5
SPRING TYPES at RUVILLE RANGE IN LINE WITH MARKET REQUIREMENTS. Achieving the best result quickly and conveniently Pre-tensioned springs for straightforward exchange. The most popular types. With Ruville springs, you can cover virtually the entire market demand: Compression springs of the type coil spring are the designs that are used most frequently. A cheap or incorrectly installed spring compressor can result in damage to the surface of the spring even during the repair. Corrosion occurs much sooner and the spring must be replaced again. Our product range offers you the most popular spring types, which are shown here: 1 Mini-block spring with constant wire 2 Cylindrical spring 3 Conical spring 4 Pre-tensioned spring 5 Torsion-bar kit for Renault Kangoo rear axle 2 3 Ruville has therefore developed a pre-tensioned suspension spring, which works with no spring compressor whatsoever. This allows damage-free, easy and quick installation. After proper removal of the old spring, the pre-tensioned spring is inserted, the supporting bearing screwed on, the tensioning straps cut and the suspension strut reattached to the body support. The standing time in the workshop is thus significantly reduced. Ruville provides a 10-year guarantee with no mileage restriction on the pre-tensioned suspension springs within the EU. 1 4 When repairing the suspension springs, the peripheral components should also be checked, for example such as the bushes and joints of the wheel suspension and steering. In this inspection, particular attention should be paid to the suspension strut supporting bearing and the shock absorber protection kit. As a system specialist, Ruville also offers the appropriate replacement here. 5 6 SUSPENSION SPRINGS SUSPENSION SPRINGS 7
TRAVEL COMFORT IN ITS MOST COMPACT FORM MINI-BLOCK SPRINGS WITH CONSTANT AND INCONSTANT WIRE. Ruville now also offers mini-block springs with constant and inconstant wire. The springs, which are used only on the rear axle, resemble a barrel in their compact form hence the name barrel spring. Axle springs with inconstant wire technically display a progressive spring rate. This means that the wire diameter increases as it goes. The mini-block spring primarily stands out for the fact that the windings can lie within each other during compression, without touching. This reduces the number of active windings. Its compact design allows vehicle designers more design scope for example when planning the boot size. Because of the smaller wire diameter at the ends, the axle spring offers a high level of comfort in the case of a light vehicle load. At the same time, the increasing wire diameter guarantees supreme driving behaviour even with a high vehicle load. TORSION-BAR KITS FOR THE RENAULT KANGOO REAR AXLE MAKING SOMETHING COMPLICATED EASIER A lot of Renault models can have a torsion bar break on the rear axle. The problem the surface coating of the torsion bar has been damaged by stone impact, affected by extreme load conditions or for other reasons. When corrosion occurs here, it inevitably leads to torsion-bar damage and sooner or later the vehicle will break down. In response, Ruville is the first company to now offer torsion bars with a zinc-flake coating, a corrosion protection that prevents damage by stone impact. Benefits of the torsion-bar kit include: 8 SUSPENSION SPRINGS all parts in OE quality an efficient, simple and cost-effective repair solution protection against corrosion through zinc-flake surface coating optimized special tool for simple mounting SUSPENSION SPRINGS 9
BENEFIT FROM PARTNERSHIP AS A SPECIALIST, WE ALSO PROVIDE SYSTEMATIC SERVICE. QUALITY FROM one SOURCE COMPONENTS FOR EVERYTHING TO DO WITH THE SPRING. If you are convinced only by our products then we have done only half our job. As your partner, we also support you with other services, which should strengthen your success and get your business rolling. In short: you can depend not only on our products but also on us. Competent advice: Our experts are naturally available for any queries on the subject of the chassis. 2-year guarantee with no mileage restriction: Our criteria for quality in suspension springs are high. If you ever find that your demands are not met then we will quickly assist you with our transparent complaint management. 10-year guarantee: We provide our pre-tensioned springs with a ten year guarantee with no mileage restriction within the EU (in line with the current guarantee conditions). Modern logistics and packaging: Benefit from high delivery capacity and sophisticated storage thanks to efficiently packaged parts. Certified production, ordering and management processes: To ensure consistent service quality, we have our processes guaranteed for example under DIN EN ISO 9001. Supplier qualification: We ensure the constant quality of our suppliers by mans of contractual agreements and careful product tests. Training: With practice-based training we keep mechanics up to date and ensure quality even into the workshop. A good combination. Like the springs, other chassis components also contribute to driving safety and optimal travel comfort. At the time of repair, all the corresponding components should therefore be checked and replaced if necessary. The parts needed for this replacement are available from Ruville naturally in OE quality, for example such as: Suspension strut bearings for light and precise steering and correct power transmission Suspension strut supporting bearings to reliably isolate the shock absorber and spring forces from the body Suspension strut supporting bearings kits including all the necessary accessories Protection kits to protect newly replaced shock absorbers 10 SUSPENSION SPRINGS SUSPENSION SPRINGS 11