General industrial machine manufacturing industry c. Bearing calculation formulas inventor 2016 autodesk. Skf bearing calculator cnet download free software. Skf uses cookies on our web site to align the information shown as closely as possible to the visitors preferences and to tailor our web site user experience in general.
Misumi ecatalog, the best way to procure products of mechanical components for factory automation. These advantages are considered in the calculation of the basic. Skf how to mount and dismount wheel bearings using the skf tool vkn 600, vkn 601 and vkn 6021 duration. It utilizes estimated load ratings and estimated product specifications to provide estimated bearing life. Ball bearings fatigue life and load ratings calculator. Cobraehl analyzes the interaction of up to 6 bearing rows on a rigid shaft under combined radial, thrust, and moment loading in 3 degrees of freedom.
Technical calculation is also available online in order for you to perform both simple and more advanced bearing calculations. Considering the load distribution within the bearing, clearance and tilting angle will affect the resulting bearing life. The main focus is the sizing of machine elements like gears, shafts, bolts, rolling bearings and more. It is not about calculation software, mesys rolling bearing calculation software would be one place to look for that. Mesys rolling bearing calculation introduction this rolling bearing calculation version 042017, file version 3. If handled, mounted, maintained, lubricated and used in the right way, the life of the bearing will normally reach and even exceed the calculated l 10 life. The skf bearing calculator makes it easy to perform complex bearing calculations. The rolling bearing calculation software determines the load distribution within the bearing and calculates the reference life according isots 16281. Early stage concept bearing analysis using romax concept. Fatigue life calculations assume the dispersion in life of identical ball bearings operating under identical conditions, a statistical result is obtained for bearing fatigue life. Antonio gabelli, armel doyer and guillermo moralesespejel. We are world leading experts, covering bearing life, durability, bearing selection and failures. Bearing 3 this spreadsheet calculates the loads on linear motion.
It should not be used to calculate life for critical applications. Bearing life life millions of revolutions l10 is when p 0. The product and manufacturing program includes linear bearings and profiled linear guideways as well as measuring systems, gear racks, slides, positioning systems and mineral casting. The skf plain bearing calculator supports basic plain bearing analysis based on and limited to the theory explained in the section bearings, units and housings. With this app you can calculate rated bearing and grease life or search for other information like bearing frequencies or shaft and housing fits. Schneeberger stands for pioneering innovations in the field of linear motion technology. Calculation of bearings in accordance with din iso 281 mdesign. It is determined via the life required of the bearing. While the answer depends on the product, our guide will explain terms such as rated life, basic dynamic load rating, and rated life estimation so you can see exactly how to calculate the life of your linear system, as well as.
The skf bearing calculator makes it easy to perform complex bearing calculations,with this app you can calculate rated bearing and grease life or search for other information like bearing. Centrifugal forces and gyroscopic moments are considered for high speed ball bearings. Basic rating life for simplified calculations and to obtain an approximate value of the bearing life, the socalled handbook method is used to calculate the basic rating life. Only refer to this sheet for axes that use 3 bearings other calculations are incorrect. New skf engineering software for the evaluation of bearing. This has prompted researchers to update standards for bearing life to take into account progress in engineering technology. In the following example the rating life and expanded modi ed rating life are to be calculated. Bearing life is commonly defined in terms of l10 life, which is sometimes referred to as b10.
Using technical calculation, you will be guided through a series of selection stages allowing you to select the most appropriate bearing for your application. Another great strength of the software is that it enables customers to select bearings directly from skfs new rolling bearings catalogue 17000, ensuring that the latest updates are taken into account. Bearing life calculated by the bearing technical calculation tool is basic rating life. Beemer, a pennsylvania corporation, having its principal place of business at 230 new york drive, fort washington. Bearings application knowledge menu ball bearings suppliers bearings and bushings products and supply. To open the bearing calculator, click the bearing calculator icon. This innovative software is an actual engineering aid designed to apply the calculating power of the computer to your complex design computations. A criterion for gearbox design and reliability optimization. And of course, exact calculations for the internal load distribution in the bearing are performed. The pretension can be individually set for each bearing. As you will see it in the following, there is more than just one bearing life calculation method, but in all cases the bearing life equation is.
But how is this calculation derived, and what does it mean in the real world. The maximum bearing life can be found out by identifying and optimizing those parameters with a major influence in it. This bearing calculator and engineering assist agreement the agreement governs your use of the bearing calculator and engineering assist both, as defined below and any related services provided by beemer precision, inc. Typical life requirements for various machine categories are listed below. Fill out the form below for the basic bearing fatigue life calculator. The rolling bearing analysis software is calculating the life of rolling bearings according isots 16281 considering the inner geometry of. The rolling bearing calculation software determines the load distribution within the bearing and calculates the reference life according isots. Ball bearing fatigue life calculator using equivalent. Rolling bearing calculations are not available anymore in this application. In the case of single row ball bearings and where a, a2, a3 can be considered equal to one, the equations may be simplified as follows. This section contains the bearing data that is needed for calculating the load and life of rolling element bearings, including 1. The rolling bearing analysis software calculates the life of rolling bearings according isots 16281 considering the inner geometry of the bearing. Gmns globus calculation program makes it easy for you to calculate the lifetime of gmn ball bearings.
The worlds top six bearing manufacturers use our software and services. All plain, prt, spherical and ball bearings can be found with extensive information, and. The drawing displayed is only for general representation and may not be identical to the selected bearing variant. Timken and koyo, have been essential to extending the range of bearings in our packaged software. This page provides information about rolling bearing analysis and calculation methods.
Ntn corporation bearing technical calculation tool. Fast and reliable bearing selection, informed by accurate. Bearing expertise lies at the core of romax technology. As in skfs product catalogs, one will immediately be able to see whether the bearing has skf explorer performance quality or is a popular item. That constant stationary load under the influence of which a rolling bearing has the same life as it attains under the actual load conditions.
The formulas are simply a guideline and should no be relied upon for critical applications. Life can vary considerably, it is affected by many variables that the formulas cannot account for. We define the factor for temperature of the slide as ft and values are tabulated in the following table. Calculation software for mechanical engineering bearing news. The basic rating life of a bearing according to iso 281 is where. The basic life formula, also know as the l10 life formula is used to calculate the number of revolutions before a failure occurs. Calculation example rolling bearings according to to din. Overview of bearing technical calculations there are five technical calculations that can be performed within the ntn electronic catalog. With our software you can now determine actual stresses while taking shaft deflection and rolling bearing deflection behavior into account. Using the software the load distribution, life and stiffness can be calculated dependent on the pretension of the bearing set. This also allows checking if the pretension is large enough and the bearings get load in.
The bearing calculator allows you to calculate the bearing capacity and basic life values in a simple to use interface. Engineers typically learn that the bearing l10 life can be estimated using the so called cp method or the basic rating life of the bearing, a method rooted in the 1940s. Ntn bearing technical calculation tool usage method 258 11. Please note that ft is listed assuming that polymer ball. Mesys rolling bearing calculation mesys ag software. Select one of the items below and click the update button.
Essential for calculating the bearing life, misalignment and loading algorithms are based on bearing calculations that the bearing design and manufacturing companies use, including iso 16281 and iso 281 standards. Calculation of bearing life according iso 281 and iso ts. Adequate bearing spread for load accommodation is achieved by mounting either two bearings or one doublerow bearing. Figure 348 shows bearing life scatter following a weibull distribution function with a dispersion parameter equal to 1. The mesys rolling bearing analysis software is calculating the life of rolling bearings according isots 16281 considering the inner geometry of the bearing. Excessive temperature can reduce the hardness of loadbearing slide components and lower the life of the slide due to wear and fatigue. Mesys ag in zurich switzerland develops software for technical calculations in mechanical engineering.
Due to a recent update to the thk technical support site, we need you to register some additional information to your optimal product selection tool account. The program, which delivers the information straight to your smart phone or tablet, is fast, simple and easy to use. Calculate bearing life maintenance worldmaintenance. For this purpose, some features of the software can be easily used, thus. Cobraehl tm elastohydrodynamic lubrication version 4. The skf formula for rolling bearing life evolution online. Describes a method to calculate an estimated wear amount to estimate the service life of bearings based on the conditions such as a load, velocity, etc.
Mesys offers standard software for shaft and bearing analysis and develops custom. Rolling bearings are used to support shafts and still allow a rotation of the shaft. Skf manufactures heavyduty spherical plain bearings with the multigroove feature in the outer ring bearings and rod ends requiring maintenance. In addition to standardized software also custom software is developed. Misumi ecatalog, the catalog companys website supplying linear motion, rotary, transmission and locating products of mechanical components for factory automation such as linear shafts, set collars, linear bushings.