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Full Range and Cheapest Parabolic Leaf Springs


What is a parabolic spring?

Basically a Parabolic Spring is a spring that consists of two or more leaves. The leaves touch only in the center, where they are fixed to the axle and at the outer ends, where they are fixed to the vehicle. In between those two points the leaves do not touch each other as they do with conventional leaf springs.

Each leaf represents a complete spring in it’s self and will act as such. To enable this the leaf is tapered, from the center (thick) to the outer ends (thin). This tapering is parabolic, it means that every centimeter (or inch) the thickness of the leaf decreases in an amount that relates to the square function of it’s length.

what is parabolic spring


Above: Tapering in an “ideal” mono leaf spring. You can see that one leaf has a similar shape as a multi-leaf spring.
Below: You can see the tapering in the leaves of the spring. The leaves taper from the center till the end (eye) and are separated by distance blocs to prevent contact.

This may sound complicated but in fact it is very simple. Every single leaf will have, more or less, the shape of a
complete multi leaf spring and thus it’s capable to cope with the same forces. This means that the ideal parabolic spring could have only one leaf, however, this type of “mono leaf” spring will have very limited articulation/weight ratio due to high internal stresses so a 2 or 3 leaf parabolic spring can divide the stresses more evenly across the
other leaves and thus more axle movement is possible. That is why we designed 2 and 3 leaf springs. An other reason to increase the number of leaves on a parabolic spring is to increase the rate (load capacity). Because every leaf is one spring we can ad or take out leaves without compromising the strength of the leaf it self. So for example we have a 3 leaf rear spring and we ad one similar leaf the rate will go up for about 30% which means that the load capacity increases by +/- 30% (depending on the shackle effect)

Makers, manufacturers and sellers of Parabolic springs and suspension systems

Xiamen Wabco Leaf Spring Factory is a professional leaf spring manufacturer in China,which is founded more than 15 years.
Our company is incorporated into a combination of design, production and sales.Currently employs more than 300 peoples,with a total area of 50,000 square meters.Trailer-Leaf-Spring_4

There are 6 production lines in our factory.The yearly turnout is over 60,000tons.We are successfully certified with TS16949 and ISO9001/2010 quality control system.
We own accurate production equip ment, testing equipment and advanced production technology.
And we have a strong production management team and Technical Team which have accquired a number of national patents.

We strictly regulate product testing process to ensure customers receive qualified products.And we adhere to the people-oriented, quality first, continuous improvement; We developed a full range of leaf springs with different sizes.The main products are Conventional Multi-Leaf Spring, Parabolic Leaf Spring and Z-type leaf spring which are used for heavy duty Trucks (Mercedes Benz, Man, Volvo,Howo, Kamaz) and light duty trucks,trailers, buses, boat trailers and agricultural equipments.
Our high quality leaf springs have been stably exporting to Europe,North American,South America, Asia,Oceania,Africa,and Middle East in the worldwide.
And our Parabolic Leaf Springs have already won good reputation in the market.

Advantages of Parabolic Springs
Parabolic springs are leaf springs that consists of two or more leaves that only make contact in the center and at the outer ends. Each leaf in a parabolic springs is tapered to be thicker at the center and slowly thins out towards the ends. This is different from the conventional leaf springs wherein the leaves are in contact with each other and in which each leaf has uniform thickness from end to end.
parabolic springs180-12-Parabolic-Leaf-Spring
Compared to conventional leaf springs, parabolic springs are able to resist more compression and have better flexibility. The flexibility results to better ride quality. The vertical speed movements are also easier to adjust with these types of springs. Due to the structure and components involved, parabolic springs are also lighter. This is an important factor when the priority is for maximum performance.
Another great application for parabolic springs is for off-road vehicles in which the flexibility of the spring is more effective in keeping the wheels always in contact with the ground compared to stiffer conventional springs.
The only downside to parabolic springs is that it has lesser capability when it comes to carry heavy loads. As such, these types of springs are used for when comfort is more preferred such as the cases with passenger buses. Only the coil springs are offer more comfortable than parabolic springs. However, coil springs which are often attached only to a single point of the chassis have the disadvantage when it comes to load distribution.
There are also newer developments with parabolic springs with brings it close to coil springs when it comes to comfort

Do Parabolic Springs require any maintenance?650-23-Parabolic--ZType-Leaf-Spring

A little light oil between the leaves will deter corrosion and prevent squeaks. The rubber bushings should be checked
occasionally. It is also very important to check that the ‘U’ bolts are torqued up to 70 ft lb. The ‘U’ bolt torque should be checked frequently under difficult conditions. You should also check that the shackles are tight by loosening the lock nuts and tightening up the shackle bolts. The condition of the axle buffers and check straps should also be checked occasionally.

I notice you use a larger rubber bushing in your spring eyes. Why is that?

Parabolic springs flex more than conventional springs and having an eye 18% larger allows us to use a bushing which can withstand flexure much better than a conventional one. The larger bushing also reduces stresses in the spring eye of the main leaf and insulates the Land Rover better from transmitted road noise.

 What are some of the features of the leaf springs that you offer?110-12-Parabolic-Leaf-Spring-3-Leaf
All leaf springs are OEM replacement parts that have been powder coated to protect from rust and other weather elements. These leaf springs are made to fit and additional hardware is readily available throughout the rest of our site. Feel free to check out our u-bolts and eye bolts. To further help you in deciding the right leaf spring for your vehicle, we have Leaf Springs for Truck, SUV, Van reviews and ratings, with a average rating of 5 out of 5 based on 8 ratings throughout.

 Where are your leaf spring replacements manufactured?
A: We we deal with a wide range of manufacturers both overseas as well as local. However, all of our springs are designed with the same specifications and materials as the vehicle’s manufacturer. All leaf springs that we offer are put through extensive quality testing before we stock them in our warehouses to ensure you receive springs that are the same quality as the OEM leaf springs.

Production Process:95-19-Parabolic-Leaf-Spring-3

Cutting-Punching-Rolling-Quenching -Tempering-Shot Blasting – Assembling – Pre-Compaction – Painting –Testing-Packing


Leaf Spring connect the axle to the vehicles body,and it plays a role of Buffering, shock absorption and
power transmission.

Material Info.

Description China USA Japan German England France ISO
Shop Sign Shop Sign Shop Sign Shop Sign Shop Sign Shop Sign
Spring Steel 85 1084 SUP3 CK85 FMR86 TypeDC
55Si2Mn 9260 SUP6 55Si7 251H60 56SC7 56SiCr7
60Si2Mn H92600 SUP6 60SiCr7 25H60 61SiCr7 61SiCr7
55CrMA H51550 SUP9 55Cr3 525A58 55Cr3 55Cr3
50CrVA H51500 SUP10 50CrV4 735A51 50CrV4 51CrV4

Note: We could design and produce any type leaf springs as per customers’ drawings and samples.


Actualité de Kim Kardashian et ses deux demi-soeurs


Kim Kardashian et ses deux demi-soeurs, Kylie et Kendall Jenner, ont été photographiées lundi soir à New York, près du lieu de tournage de «Ocean’s Eight». Le film, dont la sortie est prévue en juin 2018, avait déjà fait parler de lui grâce à son casting prestigieux.

Les trois stars de «L’incroyable famille Kardashian» ont été aperçues quittant le tournage, habillées de robe de soirée. Le spin-off de la célèbre saga de Steven Soderbergh, «Ocean’s Eleven», mettra en scène la soeur de Danny Ocean, héros des précedents films, incarnée par Sandra Bullock. S’ajoutent au casting d’autres grands noms d’Hollywood, comme Cate Blanchett, Anne Hathaway, Helena Boham Carter, Sarah Paulson, et même la chanteuse barbadienne Rihanna.

Le choix de Kim Kardashian peut paraître surprenant puisque le film, réalisé par Gary Ross, tournera autour d’une équipe de braqueuses décidées à s’emparer d’un collier. Un clin d’oeil au braquage de bijoux vécu par la star de téléréalité à l’automne dernier, alors qu’elle séjournait dans un hôtel parisien.

De nombreuses apparitions

La scène dans laquelle Kim Kardashian et ses deux jeunes soeurs sont censées apparaître se déroule lors d’un Met Gala fictif. Rien de surprenant alors que la production ait fait appel aux trois jeunes femmes, habituées de ce genre d’événements.

D’autres célébrités devraient faire des apparitions pour, à l’instar des Kardashian, jouer leur propre rôle et crédibiliser la scène. Anna Wintour, la terrible rédactrice en chef de Vogue, et le créateur Alexander Wang participeraient eux aussi à ce spin-off.

Kim Kardashian de nouveau sur le devant de la scène

La star avait déjà fait son retour début janvier après plus de trois mois d’absence sur les réseaux sociaux. Les internautes avaient cependant remarqué un changement dans les choix esthétiques de la star, passant de clichés dénudés à des photos principalement axées autour de sa vie de famille.

Ce futur cameo marque le retour de la star sous les projecteurs. Ses apparitions au cinéma dans le passé se limitent à trois films : «Film Catastrophe» en 2008, «Deep in the Valley» en 2009 et «Tentation : Confession d’une femme mariée» en 2013. Elle a aussi joué son propre rôle dans des séries télévisées, comme «30 Rock» en 2012 ou «2 Broke Girls» en 2014.

Er is niet Kopen Nike Air Max Huarache


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Hard to Find Leaf Springs for Classices Cars at New Truck Spring


You may have heard of the old saying, “They don’t make them like they used to anymore!”

In part, this is quite true when it comes to the automotive industry. Earlier cars were considered a luxury for only the rich, and they weren’t mass-produced on the level that they are today. Resources were plenty and the demand for such vehicles for those who could afford it was substantial, but for today’s numbers, the ownership of classic cars are still quite low.

As a result, the materials used back then were heavier, bulker, and today—expensive! What’s more, when it came to the smaller parts of the vehicle like the suspension system, inventors were still in the earlier stages of discovering what makes up a smoother ride—and in essence, still are today!

The Challenge of Finding Replacement Parts

Whether you want to refer to these earlier cars as old or classic, the truth somewhat remains that indeed, they don’t make them like they used to! So for car collectors and classic car owners who may have received their treasure through an inheritance, an auction, or the sheer luck of stumbling upon it in a junkyard, chances are you’re probably having a challenge finding replacement parts for your leaf spring.

The chances are quite slim that you’ll find leaf springs for a classic car at your local automotive store. Even if you’ve gotten by with combing junkyards for parts, when it comes to classic cars, you won’t have much luck. Even if you contacted the manufacturer, the response that you’ll most likely get is that particular model is obsolete and yes, they don’t make them anymore!

So if the manufacturer doesn’t make leaf springs for their earlier models, and finding replacement parts makes finding a needle in a haystack look easy, what exactly are your options? You could, like most ex-classic car owners, scrap the parts out and sell the material, or you can call New truck Spring, a leaf spring replacement and manufacturing company in New Century, KS.

About New truck Spring

New truck spring belongs to Wabco group which is a leading supplier in auto parts. Our headquarters is located in Xiamen.

We own several factories and joint-ventured manufacturers in China which are successfully certified with TS16949 and ISO9001/2009 quality control system.

With more than 10 years’ development, we can supply a full range of spare parts for full trailers, semi-trailers, heavy & light duty trucks agricultural machines and engineering machines. Our main Products are Leaf Spring, Coil Spring, Wheel Rim,Landing Gear,Trailer Jack,Jockey Wheel, Axle, Mechanical Suspension, Air Suspension, Agricultural Suspension, Bogie Suspension,Turntable, Fifth Wheel, King Pin, Brake Chamber, Container Lock, Coupling, Towing Eye, Drum, Hub, Mudguard, Lamp, Excavator Bucket, Bucket Teeth, Track Link, and other Chassis Parts.

With our advanced technology and professional team, we can supply high quality products with competitive price and best service.Being an OEM and after market service supplier, our sales network covers North America, South America, Europe, Middle East,Africa, Southeast Asia and Oceania. Our products enjoy a high reputation in the market. Warmly welcome all over the world friends to visit our Xiamen showroom and our factories to set up a long-term cooperation relationship.

New Truck Spring Inventory

We stock leaf springs for Chevy, Ford, Dodge, Plymouth, Chrysler, Oldsmobile, Mercury, Mazda, Jeep, Toyota, AMC, GMC, and Suzuki Samurai. Because we are the leading authority in leaf spring replacements, we have competitive prices that rival other distributors, giving you the best price possible. We also ship our suspension parts out anywhere in the United States. For quality assurance, we check each product before it’s shipped out to make sure that there’s no damage to your purchase.

Le lendemain shuning fait


Une ‘ rosée ‘ mitaines et plus facile que de faire, après tout, les doigts aura beaucoup moins de temps. Ning, tenter de mettre fin à la soirée quand il le portait à la fois d’écrire quelques mots, en plus quelques pages d’un livre, crier. Tongshi et remis la production officielle ERMO peach et Floyd peu, mais cette fois, elle a également rejoint l’équipe de production, son mari et leur tissage sur une paire, également créateur de shuning également tiré pour aider.

Nanjing fin portant des gants ‘ rosée ‘, provoquant un émoi parmi ses amis, envié pour suivre. Zhang Bao épouse habilement fait mouton ‘ chaud ‘ gants ‘ laine ‘, remarquées à un collègue, a demandé. Temps, Mongolie marchands mouton ‘ laine ‘ couverture invendables autre ‘ laine ‘ était en bref offre, pour un chaussure de foot pas cher bon prix de vente, plus d’entreprises intelligentes avec des moutons après que qu’ils avaient parlé de l’entreprise ‘ poilus ‘.

Le tourbillon de neige, toujours en vertu de l’arrêt, a subi fait froid partout dans la ville de gens cherchent un bon moyen de garder au chaud pour l’hiver. Mouton ‘ laine ‘ inspiré des gants, quelqu’un est venu avec le style de soie collier de gants coton, brodé sur le dessus pour attirer favori des femmes ‘ femmes ‘. Même s’il n’y a pas assez d’argent pour faire une soie ou une chèvre ou un mouton aussi est venu avec des gants ‘ Mao ‘ ‘ Mao ‘, fait des gros clips cassés ou de chiffons de coton. Était également dans les autres parties des efforts, tels que des chaussettes en coton, chaussures en coton, laine de mouton ‘ ‘ bottes, chapeau de cuir souple, mouton écharpe en ligne tissé ‘ laine ‘ et chaussure de foot pas cher ainsi de suite. Dans le temps, la ville beaucoup plus moderne hiver de Royal vêtements, il y a gens qui vendent à l’intérieur, qui fit fortune.

Shuning regarda ce qu’ils pensaient ont été faites par d’autres, également vendu fait une fortune, a eu la sagesse du soupir anciens.

Bonnes gens de famille, vous pouvez emprunter ces choses contre l’hiver, mais aucun argent ne reste pour les pauvres et que pouvez-vous faire ?

Heureusement, Feng Tian fu Yin Nathalie est un homme capable, mais sa semaine Fu cheng, Qin Tongzhi, Zhi Zhang Bao et chaussure de foot pas cher autres personnes, sont aussi bon travail dur. Nathalie, puisque après avoir lu le gant zhangbaodailai, juste en parler. Maintenant la récolte de coton, coton très bon marché, le coton est aussi facile d’obtenir quelque chose. Total meurent chaque hiver dans le passé plusieurs qui ne faites pas attention à la Cour impériale, mais toujours systématiquement réprimandés. Cette Cour dans le nord de l’ancienne guerre ‘ laine ‘, victoire, était heureuse. En ce moment si Fengtian a été gelé à la mort est trop désagréable, irrité l’empereur, Yu se bloque, il ne peut pas aller mieux.

Voulait arrêter, il a réuni des responsables, a déclaré son plan : il a l’intention d’utilisation ‘ femme ‘, swaps de la corvée approcher afin qu’ils utilisent le chaussure de foot pas cher moins cher hybride de denim de coton, certains froid fournitures telles que des couvertures, des gants, des chaussettes, pour distribution aux pauvres de la ville, peur qu’il être figé à la mort.