Aside from the three main categories of compression, torsion and tension springs, there are a whole host of other springs, such as clock springs, disc springs and die springs that perform vital tasks.
Clock springs take their name from their most common usage, as a component in clocks and watches. Not to be confused with the similarly named clocksprings – used in driving – a clock spring is predominantly made of stainless steel, though here at European Springs we are happy to make them to personal specification. The spring acts as a torsion spring, though instead of the traditional pressure under which the spring is placed, it rotates in a circular motion, revolving around the axis of an object, thus pushing the imparted impulse onto another object via the outer rotating edge of the spring. As such, clock springs are made of flat wire as opposed to round wire for a greater surface contact with the pushed object to provide maximum distribution of force.
Disc springs – also known as a Belleville washer - have been used for over 150 years, and their conical shape affords them an increased resilience over other types of spring. As such, either operating alone or stacked with other disc spring, this spring can handle incredibly large loads with greater ease than other spring types. The versatility of the disc spring in production means that there is a near-unlimited amount of stacking combinations available. You will most commonly find disc springs as part of vehicles as clutch and brake equipment.
Die springs are hyper concentrated version of compression springs, with the main difference being that they are made from rectangular and not circular wire. On average, a die spring can take roughly 30% more force than a regular compression spring, and can be engineered to give predetermined physical force at dedicated compressions. The main reason behind die springs is to take the weight of something that may become heavier over time, for example, perforated or absorbent material. As such, die springs are often used in press tools, moulds and die-casting, as repeated pressure is applied to exert a force. We can provide die springs with both open and closed ends, as well as colour coding according to strength for maximum effectiveness.
For information about our other springs, or for further details on any of our products, contact us today and we will be more than happy to help you.