We specialize in the design, manufacture, and distribution of high quality belleville disc springs servicing customers worldwide. Schnorr has now manufactured disc springs for over 60 years. Disc springs are manufactured to din 2093 and designed as per din 2092. The most common approach to designing with disk springs is to use a manufacturers catalog e. At the same time, each impact on the behaviour of these components may give rise to a malfunction or even failure of entire facilities. The disc springs are prestressed scragged and the machining and radiusing of the inside and outside diameters remove stress raisers, which could otherwise reduce disc spring fatigue life. Disc springs support a lot of dynamic processes in a skillful, safe and efficient way often under extreme force and load conditions. Disc springs are conical washers with elastic properties. These springs are resistant to axial loads, proportionally to the displacement produced in the piece.
Original schnorr safety washers are now used world wide where secure fastening connections to counter the effect of vibration are required. The guide can be on the outside d e or the inside d i of the springs, but inside guidance on a bolt or shaft is preferred to the outside guidance in a sleeve, because it offers design and economic advantages. Schnorr disc springs at producto diemakers supplies. They are known as belleville springs, disc springs, spring washers, safety washers, or load washers. Schnorr disc springs support a lot of dynamic processes in a skillful, safe and efficient way often under extreme force and load conditions. The calculations of almen and laszlo assume that a spring flank rotates around a centre of rotation during deflection, placed in. As a highly progressive load increase occurs at the end of the spring deflection when the load washer is flattenedthe load has been indicated as double the calculated value. Excel belleville spring calculatorradigan engineering.
These springs are also known as belleville springs, disc springs, spring washers, safety washers, or load washers. Make a request and we will contact the manufacturer. Schnorr would like to acknowledge and thank all of its colleagues at the t echnical universities of braunschweig and darmstadt for their suggestions and developments in the. Disc spring din 2093, disc springs, manufacturers, suppliers. Production of disc springs, disc spring elements, disc spring stacks, high duty safety washers as well as special manufacture without 8. Disc springs, belleville washers mubea disc springs. With the demand to develop and manufacture perfectly fitting solutions for various applications, schnorr offers a wide standard range of disc springs, numerous special sizes as well as. As a pioneer of the disc spring application adolf schnorr founded the familyowned company in 1908.
They can be statically loaded, either continuously or intermittently, or cyclically deflected i. The main characteristic of these elements is the capacity for offering very high forces in reduced spaces, improving what we would obtain with another. The contact surfaces have a width of approximately de150. Springs with a thickness of 6mm and over are machined all over and are given latheturned contact surfaces at the inner and outer support edges. These load washers conform to din 6796, edition oct. Original schnorr disc springs schnorr disc springs disc spring dimension tables standard materials spring steel material grade 1.
In order to meet customer requirements, schnorr has con stant ly. Disc springs are used singly, or in stacks, to achieve a desired load and travel. This period has been marked by extraordinary technical developments and disc springs have found many new and important applications due to their special characteristics and advantages. Schnorr has now manufactured disc springs for over 50 years. A belleville washer is a type of spring shaped like a washer. It is the frustoconical shape that gives the washer its characteristic spring. These materials, in general, have lower tensile strength than standard materials and should only be specified if absolutely necessary. This method is insufficient for many applications though because of the nonlinear nature of the load. Nov 12, 20 the most common approach to designing with disk springs is to use a manufacturers catalog e. Thus, adolf schnorr is considered as the pioneer of the disc spring. Precision disc spring catalog pdf mw industries, inc.
Market value has been estimated considering the application and regional segments, market share, and size, while the forecast for each product type and application segment has been provided for the global and. Large online inventory with specifically sized prestressed disc springs available. Disc springs are particularly suited for use in applications that require a high force but have limited space. Mw industries maryland precision spring location is a leader in custom, precision disc springs and belleville washers, having designed and manufactured thousands of custom disc springs for a range of unique applications. Disc springs are conical shaped washers, designed to be loaded in the axial direction f only. Schnorr is a manufacturer of conical spring washers. A large inventory of standard sizes is available for same day shipment from our ann arbor, michigan facility.
Complete engineering and manufacturing support for custom belleville disc springs from concept to finished product. Custom special springs, service parts, spec stock springs, spec stock washers, schnorr disc springs, stripping spring units, unikix spring pins, century springs, lee springs. Schnorr disk spring k notched springs schnorr free. Schnorr, key bellevilles, mcmastercarr and choose from the available options using the published values for load at maximum deflection. Din 20922093 disc springs are manufactured to close tolerances and are made from high quality spring steel strip and forgings. This research report comes up with the size of the global disc springs market for the base year 2019 and the forecast between 2019 and 2025. Schnorr disc springs k schnorr disk spring k notched springs 3d cad models. Belleville springs has been trading in the spring industry for over 40 years and is a leading uk manufacturer and stockist of disc springs and belleville washers who export their products worldwide. These springs have a lower overall height than comparable sizes made of standard materials, resulting in lower spring force. An optionally linear, degressive or progressive course of the load deflection curve. Din 2093 springs are conical washers with elastic properties.
Original schnorr disc springs the following dimension tables describe. The original schnorr disc springs the inner and outer. A disc spring sometimes called a belleville washer after the inventor consists primarily of a convex disc supported at the outer periphery by one force and an opposing force on the center of the disc. Schnorr safety washers are in the form of a disc spring but with a trapezoidal crosssection and serrations on both sides. We specialise in customising spring products for demanding applications in all industries where technical superiority and value are paramount. Disc spring sftaf, din 2093 group 1 and group 2 springs group 3 springs disc springs for static and dynamic load disc springs are particularly suited for use in applications that require a high force but have limited space. Schnorr disk springs engineering tolerance fatigue. With the demand to develop and manufacture perfectly fitting solutions for various applications, schnorr, offer an extensive standard range of disc springs. The company has a global network of currently 39 branch offices. Preload disc springs slotted type are available with an outside diameter of 9. Schnorr disc springs support a lot of dy namic processes in. Springs high disc springs may be used singly or in combination. Their continued collaboration will ensure that the schnorr handbook continues to be the sour ce of technical advise on disc springs.
Established in 1908, schnorr disc spring engineering is an iso 9001 and ts 16949 certified manufacturer of conical spring washers. The operating temperature and thickness ranges can serve as reference. Schnorr disc springs guiding the disc spring disc springs arranged in stacks require a guide to prevent lateral movement under load. Schnorr disk spring k notched springs schnorr free 3d. Home schnorr disc springs basic calculation calculation for a single spring calculation for a single spring. As a pioneer in disc spring applications, adolf schnorr founded the ownerrun family company in 1908. At the same time, each impact on the behaviour of these components may give rise to a. Key bellevilles stock metric series provides reduced material thickness on disc springs with turned contact surfaces. Disc springs support dynamic processes efficiently and predictably. Springs can be readily manufactured upon customers request. A key advantage of the disc spring is that it can raise a high elastic force with a small. As a manufacturer of disc springs and belleville washers, our disc springs are made to meet the highest quality standards in the world.
These springs are manufactured according to the specifications of din 2093 standard, which establishes all the characteristics these pieces have to meet. Disc springs are available with or without contact flats. Furthermore, it has to be taken into consideration that with increasing temperature of the elasticity module of the material the strength diminishes. How to order k disc springs when ordering k disc springs to preload the outer ring of the bearing it is suf. Disc springs schnorr disc springs support a lot of dynamic processes in a skilful, safe and efficient way often under extreme force and load conditions. Original schnorr disc springs effect of spring forces the importance of disc springs on machines and control systems is very often underestimated. In order to meet customer requirements, schnorr has constantly. Guides may be located on the inside diameter d or in the outside diameter d of the springs, but the internal guide is to be preferred. A belleville washer, also known as a coneddisc spring, conical spring washer, disc spring.
The advantage of a disc spring is that it generates high force in a very short spring length and with. Belleville springs, disc springs, spring washers, safety washers, or load washers. The catalog reflects 800 of our 10,000 finished belleville disc springs in stock. Aternatively you can download out disc spring pdf stock list below.
The disc spring has a special place in the range of springs commonly. They are commonly known as disc springs but sometimes they are called belleville washers. The large dimensional range in which disc springs are made requires very different production methods. Standard materials c75s and 51crv4 page 1116 corrosionresistant materials x10 crni 188 page 1619. Disc springs always need a guide element to prevent lateral movement. If you are looking for a part with more travel and similar loads, you may consider a. This method is insufficient for many applications though because of the nonlinear nature of the loaddeflection. Disc springs 258 258 392 320 282 382 537 020 035 035 nag 00 ogg oge 122 4122 033 035 05g asg 028 035 aye 155 22 en newton 0. Schnorr handbook, schnorr, 2016, archived from the original on 20161003. Disc springs are conicallyshaped, washertype components designed to be axially loaded. Disc springs can be used as single disc or arranged in stacks. Schnorr disc springs support a lot of disc springs dynamic processes in a skillful, safe and efficient way often under extreme force and load conditions. Schnorr has manufactured disc springs and continually opened up new applications with its many domestic and foreign customers. A disc spring stack can consist of disc springs either used in series or parallel sets.
Precise adherence to force and dimension requirements. Torsion springs, belleville washers and specialty parts. Standard, k disc springs, z disc springs, bolting series washers spec stock precision engineered components stock springs and spring washers, compression, extension, torsion and constantforce springs, belleville, finger and curved spring washers. Infinitely variable spring characteristics can be achieved by the arrangement of disc springs into stacked columns. Loaddefelection curve of straight, progressive or regressive character, according to the design requirements. Belleville springs has been trading in the spring industry for over 40 years and is a leading uk manufacturer and stockist of disc springs and belleville. Slotted type pre loaded disc springs can be filtered by outside diameter, inner diameter, thickness, reduced thickness as well as othe specifications.
By combining the springs in various ways, it is possible to obtain different forces and characteristics. The 1942 issue, 60 years ago, already contained characteristic diagrams for 21 standard springs. Handbook for disc springs, which had its origin in the 1930s, is a mirror of schnorrs endeavours. In all other cases please give application details schnorr k disc springs. What makes disc springs unique is that based on the standardized calculations of din en 16984 formerly din 2092, the deflection for a given load is predictable and the minimum life cycle can be determined. The original schnorr disc springs today din 2093 divides three manufacturing methods depending on the relevant thickness. With the demand to develop and manufacture perfectly fitting solutions for various applications, schnorr, offer an extensive standard range of disc springs, together. Today, after more than 100 years of company history, schnorr has grown into a international leading problem solver in the field. This website uses tracking mechanisms by means of technically unnecessary cookies to provide its services, to constantly improve them, and to offer individualized content. This must be taken into consideration when using these materials. A belleville washer, also known as a coneddisc spring, conical spring washer, disc spring, belleville spring or cupped spring washer, is a conical shell which can be loaded along its axis either statically or dynamically.
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