Practically all high performance applications use coil springs where possible and if the budget permits. The two main drawbacks to a coil spring suspension are cost and load-bearing. This brings us to a conclusion that each of these suspension systems have their applications unique to their functionality and are used accordingly!
Suspension Systems. Recent Posts Leaf Springs Vs. By using this website, you authorize the use of cookies for statistical purposes and to improve your navigation. Allow Know More. Both coil spring and leaf spring are suitable for vehicle suspension system and railway buffer system; however, no one can fulfil each and every requirement for such purpose.
A coil spring , also called helical spring , consists of a small diameter wire bent in the form of helix. Apart from material, wire diameter, helix angle, gap between two adjacent coils of the helix, and also end type of the spring can vary one spring to another. Such springs are simple in construction, have light weight, and requires minimum space for installation. When installed in vehicle, they offer jerk-free motion but they cannot withstand under heavy load.
On the other hand, leaf spring also called laminated spring consists of a number of flat semi-elliptical plates of varying length clamped together. They can endure heavy load but show poor vibration damping capability. Various differences between coil spring and leaf spring with respect to vehicle suspension are given below in table format. How the springs are made? A leaf spring consists of multiple flat plates of varying length clamped or laminated together using rebound clips and bolts.
Each flat plate is termed as leaf. The leaf length gradually decreases from top to bottom. The top most leaf, the longest one, is called master leaf and it is bent at both ends.
Each leaf is of semi-elliptic shape and the overall spring also have similar shape. On the contrary, helical spring is made by winding a constant diameter coil or wire in the form of helix. Although the wire remains in the form of helix, overall helical spring occupy a hollow cylindrical shape.
Such deflection is also useful while taking sharp turns. Coil spring can provide such flexibility in cross-movement. Thus this type of spring is suitable for such cars which are meant for running in rough, hilly and village road conditions. Leaf spring provides no such cross-deflection of the suspension system. This translates into considerable cost-savings for the surrounding assembly, resulting in a net saving that far outweighs the cost variance between the wave spring and coil spring.
Bottom line? Wave springs may potentially have a higher piece price, but overall cost savings may be seen when designing a wave spring into your application.
So you're telling me a wave spring can make my assemblies smaller and potentially save me money, why wouldn't I use this for everything? Let's take a pogo stick for example. A spring in a pogo stick must have a large travel and the load output to rebound the weight of a human, making it better suited for a traditional coil spring.
Other applications where an alternative spring should be used is in cases where extension or torsion is required. Wave springs are designed for compression only. What do I need to know to find the wave spring best suited for my application? Since a wave spring is typically not a direct replacement for a coil spring, a good place to start is to provide us with the parameters in which the wave spring will be working.
Please fill out our Spring Application Checklist and a Smalley Engineer will contact you shortly to discuss your application. Interested in learning more about wave springs? Check out our new E-Book below. Search form Search. Home » Blog » Wave Spring vs.
Coil Spring. What's the difference between a wave spring and a coil spring? Wave Springs Save Space The key advantage of using a wave spring is in the axial space savings. Can a wave spring replace a coil spring? Are wave springs cheaper than coil springs? Wave springs are the ideal solution for tight radial and axial spaces. Significant cost savings may be seen with a smaller, more light-weight assembly , as it takes less time and material to produce.
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