asp.net barcode reader free Gas Lubricated Bearings in Software

Printer DataMatrix in Software Gas Lubricated Bearings

Gas Lubricated Bearings
Data Matrix ECC200 Scanner In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Encoding Data Matrix In None
Using Barcode printer for Software Control to generate, create Data Matrix image in Software applications.
737 Aerostatic Spindles
Data Matrix 2d Barcode Scanner In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
Data Matrix ECC200 Encoder In C#.NET
Using Barcode generator for .NET Control to generate, create Data Matrix ECC200 image in .NET applications.
In the 1970s, most lathes only employed rolling element bearing technology A quantum leap in accuracy was achieved when the spindles were replaced with porous graphite air bearing spindles The progress in bearing technology pushes the field of ultra-precision diamond turning to higher levels of accuracy [24] Nowadays, the spindle technology in ultra-precision turning and grinding is an integration of the motor, spindle shaft and the support system The integrated system allows for a greater rigidity and stiffness In order to achieve the highest possible stiffness and accuracy, aerostatic bearings are usually employed as the support for the spindle shaft and the spindle for the grinding tool The low friction characteristic of aerostatic bearings provides a high mechanical efficiency and minimizes bearing heating problems It also gives rise to a noise-free and smooth running, and does not add to sound and vibration levels of the machine in the way that high-speed ball bearings do One of the most important fields of application of aerostatic bearings is undoubtedly in machine tools where the range of machine tool applications is very wide Almost all of the benefits result from three properties of aerostatic bearings, low friction, precise axis definition, and the absence of wear In comparison with spindles with ball or roller bearings, the lower level of vibration of aerostatic bearings is an important advantage This is particularly true in relation to the production of good workpiece geometry and surface finish, and in ensuring the longevity of the cutting tool, drill or the grinding wheel Aerostatic bearings have been employed in machines driven by most types of electric motors and of turbines and in a wide range of machine tool spindles driven by various types of belts and flexible couplings In all these cases, the driving torque is evenly and smoothly applied, excepting for the case of driving by means of a belt, the drive does not apply large loads to the bearings Aerostatic bearings are most successful when operating under these conditions They are much less likely to be successfully applied to machines with pulsating drives, which impose large internal loads on the bearings The air spindle shown in Figure 726 is capable of achieving between 5,000 and 15,000 revolutions per minute and operates at an air supply pressure of 5 7 bar The airflow at 8 bars is about 40 litres per minute with a filter of 005 m (Figure 727) The radial and axial load capacities are 30 and 100 N, respectively, with a run-out value of 035 m The radial and axial stiffness tend to increase with air pressure as shown in Figure 728 The load capacities also tend to increase in a similar fashion The spindle is usually made from a combination of various stainless steels and delerin Any unbalance caused by an uneven mass distribution, the rotor not being mass centred geometrically and service effects such as stress and thermal growth must be avoided An unbalance may reduce the life of the components, and give rise to impaired clearances or tolerances, resonance, excessive vibration or noise and a poor product quality An example of the Toshiba ultra-precision grinding machine is shown in Figure 54 (b), and its actual dimension is shown in Figure 729 The aerostatic bearing spindle is capable of high speeds, high precision and rigidity (Single-Point Asynchronous Error Motion (SPAM) of 002 m) and low
Paint ECC200 In Visual Studio .NET
Using Barcode maker for ASP.NET Control to generate, create Data Matrix image in ASP.NET applications.
Making Data Matrix In Visual Studio .NET
Using Barcode creator for .NET framework Control to generate, create ECC200 image in .NET framework applications.
Precision Engineering
Creating DataMatrix In VB.NET
Using Barcode generation for VS .NET Control to generate, create Data Matrix ECC200 image in .NET applications.
Paint Bar Code In None
Using Barcode encoder for Software Control to generate, create bar code image in Software applications.
Fig 726: A Colibri high-speed spindle [25]
Data Matrix ECC200 Generation In None
Using Barcode maker for Software Control to generate, create DataMatrix image in Software applications.
Generating ANSI/AIM Code 128 In None
Using Barcode creation for Software Control to generate, create USS Code 128 image in Software applications.
heat generation The work spindle utilizes a high-precision cylindrical aerostatic bearing with a diameter of 80 mm at a speed of 20 1,500 rpm On the other hand, the aerostatic bearing in the grinding spindle has a smaller diameter of 32 mm with a speed range of 5,000 40,000 rpm The spindle nose is of the collet chuck type [26] The usual axial load capacity is 1,400 N for work spindles and 210 for the grinding spindles The radial load capacity is 560 N for work spindles and 140 for grinding spindles According to Toshiba Machine Co Ltd [26], the air pressure should be more than 07 MPa with a flowrate of 700 L/min at a temperature of between 20 and 25 C The solid matter in the air must be less than 001 m, whereas the oil content must be below 001 mg/m3 Figure 730 and Figure 731 show the Moore and Precitech version of the work spindle The Moore work spindle is capable of achieving speeds of Fig 727: Relationship between air flow and air pressure [25] between 100 and 2,000 rpm with an
Generating Code 3/9 In None
Using Barcode creation for Software Control to generate, create Code39 image in Software applications.
UPC Code Creation In None
Using Barcode generation for Software Control to generate, create UPC Code image in Software applications.
Make UCC - 14 In None
Using Barcode maker for Software Control to generate, create GTIN - 14 image in Software applications.
Printing DataMatrix In Visual Basic .NET
Using Barcode creator for Visual Studio .NET Control to generate, create Data Matrix ECC200 image in VS .NET applications.
Make Code 3/9 In Java
Using Barcode creation for Java Control to generate, create Code 39 Extended image in Java applications.
Print Barcode In VS .NET
Using Barcode creator for ASP.NET Control to generate, create bar code image in ASP.NET applications.
ECC200 Maker In Objective-C
Using Barcode encoder for iPad Control to generate, create ECC200 image in iPad applications.
Create Code-128 In VS .NET
Using Barcode creator for ASP.NET Control to generate, create Code 128 image in ASP.NET applications.
Create Bar Code In VS .NET
Using Barcode creator for Reporting Service Control to generate, create bar code image in Reporting Service applications.
Bar Code Reader In Visual Basic .NET
Using Barcode Control SDK for .NET framework Control to generate, create, read, scan barcode image in .NET framework applications.
Copyright © OnBarcode.com . All rights reserved.