Disc springs always need a guide element to prevent lateral movement. Disc springs act as a compensator of thermal expansions during their working. As a pioneer of the disc spring application adolf schnorr founded the familyowned company in 1908. Space saving high spring forces with small deflection.
Normally this stainless steel is processed in forged form for disk thicknesses of more than 6 mm. 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. Used for safety and load washers according to din 6796. A disc spring is a conical shell which can be loaded along its axis either statically or dynamically. 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. This chromiumvanadium alloyed stainless steel is used in rolled condition according to din 1024 or acc. Disc springs can be used as single disc or arranged in stacks. Disc springs are manufactured to din 2093 and designed as. The introduction of this bearing flat also moves the position of the. Other materials are available for special applications. Prediction of loaddisplacement of th e disc spring with the.
Disc springs are available with or without contact flats. Schnorr disc springs at producto diemakers supplies. Disc spring din 2093, disc springs, manufacturers, suppliers. Schnorr has now manufactured disc springs for over 60 years. Original schnorr bearing preload springs type k, nonslotted. Disc springs for bearings areassembled with the ball bearings to act as retention devices. This chromiummolybdenumvanadium steel according to din en that can be quenched and tempered has proved very well for the use of heatresistant disc springs. Ball bearings run smoothly and noise free when preloaded with our original schnorr k disc springs.
Home about us products literature product by industry news contact. Pdf prediction of loaddisplacement of the disc spring with. However, the information provided is theoretical and may sometimes be necessary to consider other factors of the application, such as friction, to correctly predict the behavior of the springs. 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. Disc springs support a lot of dynamic processes in a skillful, safe and efficient way often under extreme force and load conditions. They are available in slotted and nonslotted versions for bearings up to a diameter of 360 mm. The 1942 issue, 60 years ago, already contained characteristic diagrams for 21 standard springs.
Disc springs are conicallyshaped, washertype components designed to be axially loaded. Typical disc spring application 40 disc springs 4147. This standard compiles all requirements disc springs shall meet so their function is assured. 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. Infinitely variable spring characteristics can be achieved by. The catalog reflects 800 of our 10,000 finished belleville disc springs in stock. Belleville spring washers these springs are conical spring washers that are able to achieve high loads with a very small deflection. However, steel has the disadvantage of high density. Din 20922093 disc springs are manufactured to close tolerances and are made from high quality spring steel strip and forgings. How to order k disc springs when ordering k disc springs to preload the outer ring of the bearing it is suf. In order to meet customer requirements, schnorr has con stant ly. Belleville washers engineering data belleville washer stacking example.
Schnorr disk spring k notched springs schnorr free. The disc springs are prestressed scragged and the machining and radiusing of the inside and outside diameters remove stress raisers, which. Compared to standard oil springs, the disc spring has a number of advantageous properties. Disc springs with contact flats and reduced thickness. 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. A disc spring stack can consist of disc springs either used in series or parallel sets. Loaddefelection curve of straight, progressive or regressive character, according to the design requirements. Custom special springs, service parts, spec stock springs, spec stock washers, schnorr disc springs, stripping spring units, unikix spring pins, century springs, lee springs. Disc springs are also used in internal combustion engines, turbine and jet systems, nuclear power components, for mechanical power transmission, and in aerospace applications. For one of many possible applications, schnorr disc springs are ideal for small spaces where high spring. With the demand to develop and manufacture perfectly fitting solutions for various applications, schnorr, offer an extensive standard range of disc springs.
Schnorr free cad models original schnorr disc springs. They can be statically loaded, either continuously or intermittently, or cyclically deflected i. 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 the guide elements and abutments should be hardened if possible to a minimum of 60 hrc minimum case depth of 0. Handbook for disc springs, which had its origin in the 1930s, is a mirror of schnorrs. To calculate the spring response of a stack of disc belleville springs calculation description this sheet calculates the spring response for a disc spring stack with no contact flats using equations from disc spring manufacturers handbook the equations used in this calculation give approximate values for the spring force and stress. Highest load in the smallest space effective january 2017 the familiar din standards for disc springs din 2092calculation of disc springs and din 2093quality requirements, dimensions have been withdrawn. In all other cases please give application details schnorr k disc springs. 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. Thus, adolf schnorr is considered as the pioneer of the disc spring. Disc springs market growth, industry insights and key. Infinitely variable spring characteristics can be achieved by the arrangement of disc springs into stacked columns. Large loads can be delivered through a short movement or small space. 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.
They also absorb ball bearings maintaining axial load recommended by the manufacturer of the bearing. This standard has been prepared by the springs standards committee af at din, the german institute for standardization e. Our stock range includes disc springs to din 2093 and din 6796 specifications, bearing preload disc springs, medium and light duty serrated safety. An optionally linear, degressive or progressive course of the load deflection curve. Disc springs are conical shaped washers, designed to be loaded in the axial direction f only. An optionally linear, degressive or progres sive course of the load deflection curve. Search lee spring s inventory of belleville washers by part number or by specifications. Iis disc springs offer a welldeveloped solution to many engineering problems. Schnorr, 2003, handbook for disc springs, schnorr corporation. Schnorr disk springs engineering tolerance fatigue material. The large dimensional range in which disc springs are made requires very different production methods. Discover all cad files of the belleville spring washers category from suppliercertified catalogs solidworks, inventor, creo, catia, solid edge, autocad, revit and many more cad software but also as step, stl, iges, stl, dwg, dxf and more neutral cad formats. Depending on the purpose for which they are used one or more disc springs may be specified.
By combining the springs in various ways, it is possible to obtain different forces and characteristics. Key bellevilles stock metric series provides reduced material thickness on disc springs with turned contact surfaces. 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. Precision disc spring catalog pdf mw industries, inc. Disc springs, belleville washers mubea disc springs. Schnorr disk spring k notched springs schnorr free 3d. 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 local markets. In conventional disc springs, alloy spring steels have been the materials of choice. Disc springs market by covid19 impact analysis, growth. The contact surfaces have a width of approximately de150. To minimise the possibility of bearing point misalignment when disc springs are stacked in series i. Schnorr disc springs mechanical engineering engineering.
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. China spatula steel china spring steel plate china is spring steel. Discover all cad files of the schnorr category from suppliercertified catalogs solidworks, inventor, creo, catia, solid edge, autocad, revit and many more cad software but also as step, stl, iges, stl, dwg, dxf and more neutral cad formats. Schnorr disc springs can be used singly or combined.
A disc spring, also known as a belleville spring or spring washer is a conical shell which can be loaded along its axis either statically or dynamically. The belleville springs also known as belleville washers are designed as per american standards for static or dynamic aplications where high spring loads are required. Schnorr disc springs k schnorr disk spring k notched springs 3d cad models. Browse by imperial or metric units for your convenience. Performance considerations a similar device is a wave washer. 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. The original schnorr disc springs today din 2093 divides three manufacturing methods depending on the relevant thickness. Loaddeflection curves of straight, regressive or progressive character according to design requirements.