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spindle speed of bearing using method

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  • [PDF] Bifurcation Analysis of High Speed Spindle Air ...

    This paper employs a hybrid numerical method combining the differential transformation method and the finite difference method to study the bifurcation behavior of a high speed spindle air bearing (HSSAB) system. The analytical results reveal a complex dynamic behavior comprising periodic, sub-harmonic, and quasi-periodic responses of the rotor center.

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  • Optimization of Bearing Locations for Maximizing First ...

    2014-7-28 · Spindle-bearing systems have been widely applied in mechanisms, such as machine tools, that need relative rotary motion to accomplish desired machining functions. Recently, to alleviate high-speed rotation, motorized spindles have been successfully developed and used in high-speed machine tools. This type of spindle is equip-

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  • Dynamic Design of a High-Speed Motorized Spindle

    2010-3-1 · This technical brief presents a dynamic model based on the traditional transfer matrix method (TMM) and Jones–Harris nonlinear rolling bearing model to study the effects of the extended structure parameters on the vibration behavior of a high-speed motorized spindle-bearing system. The first critical speed and the dynamic stiffness of the ...

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  • Spindle bearing and lubrication method introduction ...

    Due to the fact that the grease-type electric spindle is used for disposable grease, its service life is limited. Usually, the oilless bearing can be used for three months at full speed. Grease recommends the use of KLUBER's FIEX NBU-15 High Speed Grease. The filling amount is approximately 1/6 of the bearing clearance.

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  • Design and Analysis of Machine Tool Spindle

    2017-7-6 · Only the bearings suitable for high speed spindle, such as angular ball bearings and cylindrical roller bearings, are used for machine tools, especially for drilling machine spindles. Angular Contact Ball in the machine tools, This type of bearing has balanced essential properties for the high speed and high accuracy spindle.

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  • Reliability analysis of machine tool spindle-bearing ...

    The main calculation methods of resonance speed are the transfer matrix method (TMM) and the finite element method (FEM) [5 , 11 12]. The TMM equalizes the rotor to a disc, a Measurement Science and Technology Resonance speed measurement of high-speed spindle using …

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  • Resonance speed measurement of high-speed spindle

    This paper describes machining characteristics of high spindle speed micro electrical discharge machining (EDM) using the electrostatic induction feeding method. In this method, non-contact electric feeding allows the tool electrode to be rotated at high speed up to fifty thousand rpm. In micro EDM, it is considered that higher spindle speed is ...

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  • High Spindle Speed Micro EDM Using Electrostatic

    2021-5-1 · Consideration of temperature rises during the development of spindle bearing systems can contribute to the design of bearing-related components, in terms of the bearing types, loads, and material, lubrication method, spindle operational speed, and life and maintenance of the system [21,26,27]. The effects of temperature increases have thus ...

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  • An analysis of a thermally affected high-speed spindle ...

    2015-2-27 · maximum spindle speed of 7000 rpm and a bearing bore diameter of 85 mm. 2.1. Bearing Heat Generation The externally driven grinding spindle investigated in this research is assembled with sealed universal bearings with small steel balls. Figure 1 illustrates the basic method used for defining heat transfer through the spindle and housing.

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  • Mechanical Spindle Working Principle And

    2017-9-5 · Spindle parts are usually composed of spindle, bearing and drive parts (gears or pulleys). ... Reduce the working temperature of the bearing, often using the method is lubricating oil. Lubrication methods are, oil and gas lubrication methods, lubrication fluid circulation two kinds. ... Mechanical Spindle Variable Speed A... Oct 11, 2017. High ...

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  • Modeling Method Analysis of the Friction Torque for High ...

    2018-12-15 · Modeling Method Analysis of the Friction Torque for High Speed Spindle Bearing Songsheng Li1,2, HuihangChen1,2, Haibing Ding1,2, Guoye Zhang1,2 and Juan Shao1,2 1 School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China, 200072 2 Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, Shanghai University, Shanghai, China, 200072

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  • Design and Analysis of Machine Tool Spindle

    2017-7-6 · Only the bearings suitable for high speed spindle, such as angular ball bearings and cylindrical roller bearings, are used for machine tools, especially for drilling machine spindles. Angular Contact Ball in the machine tools, This type of bearing has balanced essential properties for the high speed and high accuracy spindle.

    Get Price
  • A defect-driven diagnostic method for machine tool

    spindle speed [11], even though spindle damage is not speed-dependent. For example, Fig. 1 shows that the long term spindle condition (LTSC) metric from ISO/TR 17243-1 [2] rates a new spindle, with only 510 h of operation time and excellent performance, as a ‘C’ and ‘not suitable for long term operation’. Method for estimating spindle ...

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  • Spindle Speed | Scientific.Net

    Milling of Ti-6Al-4V was carried out using tungsten carbide cutting tool while varying spindle speed (120,150, and 180 rev/min), depth of cut (1, 1.5 and 2 mm) and the feed rate remained unchanged at 4.6 mm/min. Subsequent to milling, characterization of subsurface …

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  • Dynamic Design of a High-Speed Motorized Spindle

    2010-3-1 · This technical brief presents a dynamic model based on the traditional transfer matrix method (TMM) and Jones–Harris nonlinear rolling bearing model to study the effects of the extended structure parameters on the vibration behavior of a high-speed motorized spindle-bearing system.

    Get Price
  • [PDF] Bifurcation Analysis of High Speed Spindle Air ...

    This paper employs a hybrid numerical method combining the differential transformation method and the finite difference method to study the bifurcation behavior of a high speed spindle air bearing (HSSAB) system. The analytical results reveal a complex dynamic behavior comprising periodic, sub-harmonic, and quasi-periodic responses of the rotor center.

    Get Price
  • (PDF) IJIRAE::Analysis Of CNC Lathe Spindle For

    optimization of thicknesses of inner and outer races of a deep groove ball bearing using fem (ansys) By Ajinkya Karpe IJIRAE::Review: Composite Flywheel for High Speed Application

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  • Fatigue Analysis of VMC 450 Spindle - IRJET

    2016-11-6 · that the maximum rotating speed of the spindle was smaller than the natural resonance region speed, and the static stiffness of the spindle can meet the requirements of the design. V. V. Kulkarni et. al. [3] has presented analysis on CNC lathe spindle for maximum cutting force condition and bearing life using FEM.

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  • The vibration of machine motorized spindle based on

    2018-12-13 · Lin C.-W. Simultaneous optimal design of parameters and tolerance of bearing locations for high-speed machine tools using a genetic algorithm and Monte Carlo simulation method. International Journal of Precision Engineering and Manufacturing, Vol. 13, Issue 11, 2012, p. 1983-1988.

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  • Mechanical Spindle Working Principle And

    2017-9-5 · Spindle parts are usually composed of spindle, bearing and drive parts (gears or pulleys). ... Reduce the working temperature of the bearing, often using the method is lubricating oil. Lubrication methods are, oil and gas lubrication methods, lubrication fluid circulation two kinds. ... Mechanical Spindle Variable Speed A... Oct 11, 2017. High ...

    Get Price
  • [PDF] Bifurcation Analysis of High Speed Spindle Air ...

    This paper employs a hybrid numerical method combining the differential transformation method and the finite difference method to study the bifurcation behavior of a high speed spindle air bearing (HSSAB) system. The analytical results reveal a complex dynamic behavior comprising periodic, sub-harmonic, and quasi-periodic responses of the rotor center.

    Get Price
  • A defect-driven diagnostic method for machine tool

    spindle speed [11], even though spindle damage is not speed-dependent. For example, Fig. 1 shows that the long term spindle condition (LTSC) metric from ISO/TR 17243-1 [2] rates a new spindle, with only 510 h of operation time and excellent performance, as a ‘C’ and ‘not suitable for long term operation’. Method for estimating spindle ...

    Get Price
  • (PDF) IJIRAE::Analysis Of CNC Lathe Spindle For

    optimization of thicknesses of inner and outer races of a deep groove ball bearing using fem (ansys) By Ajinkya Karpe IJIRAE::Review: Composite Flywheel for High Speed Application

    Get Price
  • Study of dynamic characteristics about motorized

    2019-4-10 · Abstract: The dynamic characteristic is the key factor that affects the stability of motorized spindle at high-speed. According to the effects of bearing lubrication condition on motorized spindle rotor-bearing system dynamic characteristics, considering contact stiffness and elasto-hydrodynamic oil-film stiffness between balls and ring raceways, based on finite element method, this paper ...

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  • (PDF) Experimental Analysis on the Influence of

    Experimental Analysis on the Influence of Spindle Vibrations of CNC Lathe on Surface Roughness using Taguchi Method. International Journal of Current Engineering and Technology, 2015. vijay mohan shetty. Vamshi Reddy. Mahesh Pallapothu. vijay mohan shetty.

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  • Vol. 5, Issue 5, May 2016 Design, Analysis and Testing of ...

    2020-11-30 · Bearing calculations were carried out as per the standard procedure using SKF Catalogue for spindle diameters starting from 30mm. The bearing of diameter 55mm satisfies the conditions of speed and strength.

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  • Dynamic analysis of a spindle-bearing system based on ...

    2017-8-22 · the spindle-bearing systems is similiar to those developed in rotor-dynamic. The main purpose of this study, an ANSYS Parametric Design Language (APDL) program based on finite element method has been developed for obtaining full analysis of rotordynamic in order to investigate the spindle-bearing dynamic behaviors.

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  • Bearing preload optimization for machine tool spindle

    2017-2-7 · The results show that there is a minimum bearing preload value for avoiding the bearing ball skidding; the bearing temperature rise more than 30°C can be hardly achieved in the normal speed range, the fatigue life decides the biggest bearing preload; and the method is applicable to machine tool spindle …

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  • Measurement Research of Motorized Spindle Dynamic ...

    High speed motorized spindle has become a key functional unit of high speed machine tools and effectively promotes the development of machine tool technology. The development of higher speed and more power puts forward the stricter requirement for the performance of motorized spindle, especially the dynamic performance which affects the machining accuracy, reliability, and production efficiency.

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  • Bearing preload optimization for machine tool spindle

    2017-2-7 · The results show that there is a minimum bearing preload value for avoiding the bearing ball skidding; the bearing temperature rise more than 30°C can be hardly achieved in the normal speed range, the fatigue life decides the biggest bearing preload; and the method is applicable to machine tool spindle …

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  • Trapezoidal Thread Spindles and Nuts DIN 103 –

    2019-2-7 · n is effective spindle speed in min-1 nkr is the critical spindle speed in min-1 according to the diagramme above. fk is the corrective factor of the critical spindle speed, under of the spindle bearing method. Values for fk see above. Tension Pressure Critical Buckling Force Fk in …

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  • Lightweight design of 45 000 r/min spindle using full ...

    2011-2-28 · a proper way for a high-speed spindle. In the four- column combination, the stiffness of a single bearing was 49 N/μm, and the spindle presented a motor embedded structure. Table 1 Specifications of spindle Specification Description and value Maximum rotational speed/(r·min−1) 45 000 Bearing arrangement DBB Preload method Front: fixed position,

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  • Dynamic analysis of a spindle-bearing system based on ...

    2017-8-22 · the spindle-bearing systems is similiar to those developed in rotor-dynamic. The main purpose of this study, an ANSYS Parametric Design Language (APDL) program based on finite element method has been developed for obtaining full analysis of rotordynamic in order to investigate the spindle-bearing dynamic behaviors.

    Get Price
  • Predicting time-varying preload of spindle bearing based ...

    2019-11-4 · Predicting time-varying preload of spindle bearing based on two measured temperatures Jin H. Huang1, ... inverse method, spindle INTRODUCTION Spindle with complex structure is an importance component in machine tools. To create high stiffness ... on the spindle worked at low speed and heavy load. However, the preload using fixed position may ...

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  • Optimal design of spindle-tool system for improving the ...

    2020-2-25 · high speed over the dynamic and thermal behaviour of high-speed spindles. To identify the process parameters, a flow chart was proposed. Jiang and Zheng [10] studied the effect of structural parameters on vibration behaviour of high-speed spindles using the transfer matrix method and Jones-Harris bearing model. Peng et al [11] studied the

    Get Price
  • Optimization of Design and Analysis of Y-Axis Spindle for ...

    2018-4-24 · determination of critical speed of the spindle. First design calculations for the spindle and bearings were carried out for optimizing the span length and outer diameter of spindle using CMT design handbook and bearing catalogues. Microsoft Excel sheet was used to carry out several iterations and to arrive at optimum results.

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  • MACHINE TOOL SPINDLE BEARING SELECTION &

    machine tool spindle bearing selection & mounting guide 7 Ultra High Precision Angular Contact Ball Bearings High performance bearings developed specifically for internal grinding or high-speed motor

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  • Vibration reduction of spindle-bearing system by design ...

    2018-4-18 · can be achieved by using these spindles [1]. Moreover, the benefits of using high precision bearing encouraged machine tool engineers to contribute for development in technology of this spindle-bearing system. The fundamental methods for designing machine tool spindle-bearing system can be seen in reference [2]. An important function when ...

    Get Price
  • Variable speed fluid bearing and method of use - Ford ...

    A fluid bearing assembly for rotatably supporting a rotary-driven spindle having smooth bearing surfaces. Each bearing has a stationary housing holding an annular bearing race that presents a smooth continuous bearing surface facing a complementary bearing surface of the spindle; together the race and spindle define a continuous, thin, uniform crevice space.

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  • Spindle speed control using feed-forward estimation

    Spindle speed control using feed-forward estimation in a hard disk drive ... FIG. 7 is a plot of simulation results illustrating a change in spindle speed wherein a method in accordance with one embodiment of the present invention is applied. ... The air bearing resists the spring force applied by the suspension 242.

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  • Thermal Behavior of Externally Driven Spindle ...

    2015-2-27 · maximum spindle speed of 7000 rpm and a bearing bore diameter of 85 mm. 2.1. Bearing Heat Generation The externally driven grinding spindle investigated in this research is assembled with sealed universal bearings with small steel balls. Figure 1 illustrates the basic method used for defining heat transfer through the spindle and housing.

    Get Price
  • Trapezoidal Thread Spindles and Nuts DIN 103 –

    2019-2-7 · n is effective spindle speed in min-1 nkr is the critical spindle speed in min-1 according to the diagramme above. fk is the corrective factor of the critical spindle speed, under of the spindle bearing method. Values for fk see above. Tension Pressure Critical Buckling Force Fk in …

    Get Price
  • Optimal design of spindle-tool system for improving the ...

    2020-2-25 · high speed over the dynamic and thermal behaviour of high-speed spindles. To identify the process parameters, a flow chart was proposed. Jiang and Zheng [10] studied the effect of structural parameters on vibration behaviour of high-speed spindles using the transfer matrix method and Jones-Harris bearing model. Peng et al [11] studied the

    Get Price
  • Optimization of Design and Analysis of Y-Axis Spindle for ...

    2018-4-24 · determination of critical speed of the spindle. First design calculations for the spindle and bearings were carried out for optimizing the span length and outer diameter of spindle using CMT design handbook and bearing catalogues. Microsoft Excel sheet was used to carry out several iterations and to arrive at optimum results.

    Get Price
  • Bearing Runout Measurements - Keysight

    2000-9-3 · is at 131 Hz. Analysis of the bearing design, using the equations in table 1, indicates this runout component occurs at the ball spin frequency of the bearing. This indicates the runout is caused by the out-of-roundness of the balls themselves. It is also interesting to look at the markers which denote the harmonics of 60 Hz (the spindle speed ...

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  • Vibration reduction of spindle-bearing system by design ...

    2018-4-18 · can be achieved by using these spindles [1]. Moreover, the benefits of using high precision bearing encouraged machine tool engineers to contribute for development in technology of this spindle-bearing system. The fundamental methods for designing machine tool spindle-bearing system can be seen in reference [2]. An important function when ...

    Get Price
  • Protect your bearing investment Proper run-in

    2020-11-18 · There are two common methods of bearing run-in. The first method, called continuous run-in, gradually increases speed until the final operating speed is reached. This procedure, which can require up to 10 hours to complete, allows the operator to detect potential problems before they can cause damage. Consider using this method for new equipment.

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  • US7009354B2 - Method for spindle bearing friction ...

    Temperature of the disk drive is measured using components of the disk drive without the need of including a separate temperature sensor to optimize performance of the spindle motor during startup. To measure temperature, the resistance of the VCM winding is measured and used to estimate the spindle bearing temperature. Back emf is measured from VCM windings and used during startup to ...

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