MESYS Japan List of Products and Services

A new version of the MESYS shaft and rolling bearing analysis software equipped with new features has been released. The rolling bearing analysis software allows for the calculation of load distribution within bearings and bearing life in accordance with ISO/TS 16281, and it is integrated into shaft system calculations with additional features such as modal analysis, shaft strength calculations, and interfaces for gear calculations. Currently, this software is used by customers in 31 countries across 4 continents. 【Features】 - Calculation of bearing stiffness - Optimization of preloading - Prediction of bearing life - Calculation of critical speed - Strength calculations for gears 【Gear Calculation Features】 - Calculation of cylindrical gear pairs - Calculation of gear shapes in accordance with ISO 21771-1 - Gear strength calculations in accordance with ISO 6336 parts 1, 2, 3, 5, and 6 - Support for load spectra - Graphics for single teeth, full gears, and manufacturing or meshing tooth profiles - Graphics for slip ratio, safety factors based on life, and allowable torque based on life - FEA-based tooth shape stress using 2D-FEA - 3D gear shapes can be exported in STEP format

• Software (middle, driver, security, etc.)

We would like to introduce the technical documents handled by MESYS Japan. In "How to Determine the Internal Clearance Dimensions of Rolling Bearings for Motor Shafts," we provide a detailed explanation of how to determine the required axial clearance using the parameter variations of the MESYS shaft calculation. Additionally, we have prepared documents on topics such as "Bearing Design for Machine Tool Spindles," "Bearing Design for Planetary Gears," and "Stiffness and Bearing Design for Ball Screws." [Contents] ■ How to Determine the Internal Clearance Dimensions of Rolling Bearings for Motor Shafts ■ Bearing Design for Planetary Gears ■ Stiffness and Bearing Design for Ball Screws ■ Bearing Design for Machine Tool Spindles *For more details, please refer to the PDF documents or feel free to contact us.

• Structural Analysis

In the main spindle of machine tools, multiple rolling bearings are incorporated, playing a significant role in the design of spindles that require high precision, high speed, and high load capacity. By utilizing the MESYS Shaft System program to consider the nonlinear stiffness of each bearing, it is possible to examine the selection, arrangement, clearance, and preloading of suitable bearings. This document includes information on frequency response calculations and load spectra. Please feel free to download and read it. [Contents] ■ Selection and arrangement of various bearings ■ Natural frequencies and Campbell diagrams ■ Frequency response calculations ■ Optimization of rolling bearings ■ Load spectra *For more details, please refer to the PDF document or feel free to contact us.

• Structural Analysis

The planetary gear system consists of multiple gears that mesh with each other, and multiple shafts are held by bearings, enabling the transmission of large forces and allowing for gear reduction ratios. By using the MESYS Shaft System program, it becomes possible to verify the meshing conditions of the gears and the load distribution on the bearings from the early stages of design. This document includes information on gear connection settings, positioning, and detailed shapes of three-dimensional elastic carriers. Please feel free to download and read it. [Contents] ■ From simple models to 3D elastic models ■ Gear connection settings and positioning ■ Detailed shapes of three-dimensional elastic carriers ■ Bearings for planetary gears ■ Line loads for planetary gears ■ Bearings for helical planetary gears (case study) ■ Modeling of planetary gear flex pins *For more details, please refer to the PDF document or feel free to contact us.

• Structural Analysis

The ball screw that converts rotational motion into linear motion is one of the important mechanical elements, requiring high rigidity and the ability to handle high loads. By utilizing MESYS Software's "Shaft System" and "Ballscrew," we can understand the complex load distribution between the screw shaft, rolling elements, nut, and supporting bearings, thereby supporting the development of ball screws with high rigidity and long lifespan. This document includes information on the overall system modeling and the configuration of the ball screw. Please feel free to download and read it. [Contents] ■ Overall system modeling ■ Ball screw configuration ■ Calculation execution and result output - Load distribution of the ball screw - Overall load distribution of the system ■ Parameter survey function and load spectrum *For more details, please refer to the PDF document or feel free to contact us.

• Structural Analysis

This product is the rolling bearing design calculation software for machine designers, version 2022. New bearing types such as toroidal roller bearings and double-row axial cylindrical roller bearings have been added. Similar to self-aligning roller bearings, curvature ratios fi/fe/fr are used instead of directly inputting the radius, and the curvature ratios are based on the outer ring diameter de. A new option for calculating frequency response has been added via [Calculation] -> [Frequency Response]. Loads are specified as dynamic forces, and displacements, velocities, or forces at the selected position can be displayed, showing both amplitude and phase. 【Features】 <Extensions in the Bearing Calculation> ■ Added double-row axial cylindrical roller bearings as a new bearing type ■ Multi-layer fits can also be defined at the request of several customers ■ Gaps between bearing rings and shafts/housings can be considered ■ Another shaft can be selected for axial contact *For more details, please refer to the PDF materials or feel free to contact us.

• Software (middle, driver, security, etc.)

This product is the 2021 version of rolling bearing design calculation software for mechanical designers. In "General Extensions," reports can be generated in XLS or XLSX format. It is now possible to import data from XLSM files. Additionally, the general fit calculation function has been expanded to provide results for maximum axial force and maximum torque. Other features such as "Extensions in the Bearing Calculation" and "Extensions in the Shaft Calculation" are also introduced. 【Features of General Extensions】 - The database content has been updated, allowing users to encrypt the database. - Width and friction coefficient have been added to the fit calculation. - A file menu and automatic backup function have been added, and report formats now support XLS and XLSX. *For more details, please refer to the PDF document or feel free to contact us.

• Software (middle, driver, security, etc.)

This product is the 2020 version of rolling bearing design calculation software for mechanical designers. In "General Extensions," new methods have been added to the COM interface, making it easy to use with Python. Additionally, calculations involving large load spectra or 3D elastic components that take a long time can now be canceled using a button on the status bar. Other features include "Extensions in the Bearing Calculation" and "Extensions in the Shaft Calculation." 【Features of General Extensions】 - Updated databases from Schaeffler and SKF - Addition of JTEKT's KOYO bearing database - Internal shape data approximated based on catalog data - GMN, IBC, and CSC including internal shapes are available - Made easy to use with Python *For more details, please refer to the PDF materials or feel free to contact us.

• Software (middle, driver, security, etc.)

To model a gear mechanism (gearbox), we will define the shaft shape, select various types of rolling bearings, and set the gear specifications. Considering rotational torque, various load conditions, internal clearances of rolling bearings, and fitting conditions, we will perform calculations for the entire system. In the calculations, we can determine the deflection of the shaft, the stiffness of the rolling bearings, the load distribution, and find the maximum contact stress and bearing life for each rolling bearing. [Contents] ■ Load distribution and life of each rolling bearing ■ Shaft displacement diagram under gear load ■ Line load of gears and gap width ■ Line load under various load conditions *For more details, please refer to the PDF materials or feel free to contact us.

• Structural Analysis

When using angular ball bearings as bearings for the motor shaft, it is necessary to determine the axial clearance of the system. This document introduces a method to determine the required axial clearance using parameter variations from the MESYS shaft calculation. [Contents] - How to determine the internal clearance dimensions of rolling bearings for the motor shaft - Input for parameter variations - Bearing life and natural frequency of bending in relation to bearing clearance - Friction moment and spin-roll ratio in relation to bearing clearance *For more details, please refer to the PDF document or feel free to contact us.

• Structural Analysis

In the MESYS shaft calculation or shaft system calculation, it is possible to consider FEA-based 3D elastic components to calculate the system's stiffness more accurately. Shafts, housings, planetary carriers, or gear bodies can be regarded as 3D elastic components, and the elastic deformation of the shaft and housing can be considered as the elastic deformation of the bearing raceway. This document includes information on elastic planetary carriers, elastic housings, and more. Please take a look. [Contents] ■ Integration of 3D elastic components into the shaft system ■ Elastic planetary carriers ■ Elastic housings ■ Elastic bearing raceways ■ Elastic gear bodies *For more details, please refer to the PDF document or feel free to contact us.

• Structural Analysis

The "Axial Radial Roller Bearing Structural Analysis Software" is software that considers the deformation of the bearing raceway using the finite element method. The geometric shape of the rotationally symmetric components can be defined by the user using polygons, and it is possible to define an arbitrary number of cylindrical rollers. Types of rolling bearings are supported, including "Axial Radial Cylindrical Roller Bearings," "Radial Cylindrical Roller Bearings," and "Cross Roller Bearings." 【Features】 ■ Considers the deformation of the bearing raceway using the finite element method ■ The geometric shape of rotationally symmetric components can be defined by the user using polygons ■ Can define an arbitrary number of cylindrical rollers ■ Capable of performing a series of calculations with varying loads and calculating load spectra ■ Supports rolling bearing types such as Axial Radial Cylindrical Roller Bearings *For more details, please refer to the PDF document or feel free to contact us.

• Structural Analysis

The load distribution within the ball screw is calculated as a result of axial and radial loads, as well as tilting moments. The lifespan is calculated from the load distribution in accordance with ISO/TS 16281. The track can be designed as a gothic arch or a full radius. 【Features】 ■ Calculation of load distribution for axial, radial loads, and tilting moments ■ Lifespan calculation in compliance with ISO/TS 16281 ■ Integration with shaft calculations

• Structural Analysis

Module for calculating load distribution of gear mechanisms (gearboxes), planetary gears, etc. Calculates overall stiffness and misalignment considering gear meshing and bearing stiffness. 【Features】 ■ Shaft combinations based on gear pairs ■ Calculation of rotational speed and torque ■ Load spectrum and gear shifts ■ Modeling of planetary gears, bevel gears, and worm gears ■ Calculation of gear line loads

• Structural Analysis

A module that calculates the stiffness when a load is applied by placing bearings on the shaft (axis), considering nonlinear bearing stiffness, and performs analysis on shaft displacement, strength, bearing life, and vibration. 【Features】 ■ Consideration of nonlinear bearing stiffness, integrated analysis of bearings and shaft ■ Shaft strength calculation (in accordance with DIN 743) ■ Calculation of natural frequency and frequency response ■ Load spectrum (variable load)

• Other analyses

The "Rolling Bearing Analysis Software" calculates the lifespan of rolling bearings in accordance with ISO/TS 16281, taking into account the internal shape of the bearing. Additionally, when considering the load distribution within the bearing, the internal clearance and tilt angle affect the results of the bearing lifespan. 【Features】 ■ Load distribution within the bearing ■ Lifespan calculation in accordance with ISO/TS 16281 ■ Consideration of the effects of internal clearance, tilt angle, centrifugal force, and load spectrum ■ Calculation of track rollers considering the outer ring as an elastic body ■ Various parameter survey functions *For more details, please feel free to contact us.

• Metal bearings