Multi-functional Air Bearing Machines for NASA

Featured Product from ABTech, Inc.

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Multi-functional Air Bearing Machines for NASA NuStar X-ray Telescope
NASA needed a machine that would safely and quickly produce optics for their long-delayed NuSTAR X-ray telescope. The scientists at NASA challenged ABTech to develop a multifunctional machine that would act as a diamond turning lathe, an indexing tool for raster grinding and an assembly station – all in one. ABTech met the challenge. Two machines were delivered to Columbia University’s Nevis Astrophysics Lab in quick fashion, putting the project back on schedule.

Air Bearing Spindles
ABTech’s high precision air bearing spindles provide the ultimate performance utilizing a proven and robust design. High stiffness, load capacity and very low error motion make these spindles ideal for precision machining, grinding, single point diamond turning, and high precision scanning. Available with integral brushless dc motor and encoder in low speed configurations for work holding or higher speed for grinding and scanning applications.

These orifice compensated air bearing spindles use a single piece of 440 CSS shaft and thrust plate with 660 bearing bronze journal providing a proven, robust and forgiving design. Available in a variety of sizes and speeds with a flange, foot, or a-thermal mounting.

Optional motion controllers incorporate a digital amplifier with easy-to-use programmable controls and digital spindle speed readout. Fully integratable with your existing CNC controller.

With this modular design approach and complete engineering support capabilities ABTech will respond quickly to provide a custom solution to your unique O.E.M. needs for ultra-precision motion. No need to settle for standard catalog offerings for your application.

Configuration Flexibility to Meet Your Specific Needs
Part of our “Pride in Precision” philosophy means providing you with the precise solution needed. We don’t believe selling our customers more, or less, than what their application calls for. For over two decades working with our customers we’ve developed a broad range of options and accessories to address the majority of ultra-precision motion applications. (See options and accessories for a complete list.)
No matter how broad our product options, we realize they don’t address every possible application. Our precision motion experts will work closely with you to configure a rotary motion solution that will meet your exact needs.

Features & Benefits:

  • Ultra-smooth motion with no static friction

  • Orifice compensated air bearing design

  • Low air consumption (0.9 SCFM)

  • Robust construction:
    Hardened 440C stainless steel shaft/thrust plate
    660 bearing bronze journals

  • Built in adjustment for balancing to customer's tooling

  • Liquid cooled motor and bearing housing

  • Flange, foot or a-thermal mounts available

  • Motor controllers and HMI available

  • Total radial error motion <2 μ”

  • Radial asynchronous error motion < 1 μ”

  • Total axial error motion <2 μ”

  • Dual plane balanced to G0.4 specifications

 

Air Bearing Spindles
ABTech offers air bearing spindles from 1,000 RPM to 20,000 RPM for the most demanding machine tool and inspection applications. High load capacity and stiffness with low air consumption, dual plane balanced to exceed the G0.4 specification and minimal radial asynchronous error motions make these spindles ideal for single point diamond turning, work holding, grinding, and polishing applications.

 

Watch>>ABTech Custom Design Solutions

ABTech 
ABTech specializes in unparalleled expertise in the design and development of ultra-precision motion systems and metrology solutions. Our custom metrology gages, air bearing rotary tables, and turnkey multi-axis systems are designed, engineered, and manufactured entirely in-house, giving our customers flexibility at every stage from concept through delivery. Our measurement systems are ideal for applications ranging from precision optics, automotive, aerospace, aviation, and semiconductor to name a few.