--- title: 5 Spindle Applications:Air-Bearing Spindles Deliver Ultimate Precision description: Explore high-precision spindles with advanced air bearing technology and durable mechanical spindle designs. Engineered for accuracy and made in the U.S.A. image: https://blog.abtechmfg.com/hubfs/SP138spindles.png --- [![](https://blog.abtechmfg.com/hubfs/ABTech_August2023/Images/ABTech%20inc..png)](https://www.abtechmfg.com/) [(603) 585-7106](tel:603-585-7106) ** ** - Solutions ** - [**Specialty Design Solutions**](https://www.abtechmfg.com/specialty-designed-solutions) - [**Precision Motion Components**](https://www.abtechmfg.com/precision-motion-components) - [Rotary Tables](https://www.abtechmfg.com/precision-motion-components/rotary-tables) - [Spindles](https://www.abtechmfg.com/precision-motion-components/spindles) - [Linear Stages](https://www.abtechmfg.com/precision-motion-components/linear-stages) - [**Custom Measurement Systems**](https://www.abtechmfg.com/custom-measurement-instruments) - [MicroForm Roundness Gages](https://www.abtechmfg.com/measurement-systems/microform-roundness-gages) - [MicroTIR™ Gages](https://www.abtechmfg.com/turbine-engine-assembly-systems/mtir-plus) - [**Turbine Engine Assembly Systems**](https://blog.abtechmfg.com/turbine-engine-assembly-systems) - [GE Engines](https://blog.abtechmfg.com/turbine-engine-assembly-systems/eas) - [MicroTIR Gages](https://blog.abtechmfg.com/turbine-engine-assembly-systems/mtir-plus) - Resource Center ** - [Whitepapers & Case Studies](https://www.abtechmfg.com/whitepapers-and-case-studies) - [Technical Papers](https://www.abtechmfg.com/technical-paper-resource-library) - [Videos](https://www.abtechmfg.com/videos) - [Blog](https://blog.abtechmfg.com/) - About ** - [About ABTech](https://www.abtechmfg.com/about) - [Careers](https://info.abtechmfg.com/careers) - [Contact](https://info.abtechmfg.com/contact) # 5 Spindle Applications Where Air-Bearing Spindles Deliver Ultimate Precision ![ABTech - Spindles and it applications](https://blog.abtechmfg.com/hubfs/SP138spindles.png) Across all advanced industries, from aerospace to semiconductor, there is a relentless push for tighter tolerances, superior surface finishes, and higher performance. Achieving these goals often requires motion systems that can operate beyond the limits of traditional precision components like a mechanical spindle. This is where air bearing technology becomes an enabling technology. Utilizing a proven and robust design with **high load capacity and stiffness**, our high-precision spindles meet the most extreme demands with frictionless, vibration-free motion and **nanometer-level accuracy** across a wide performance range from 0 to over 30,000 RPM.   Here are five critical spindle applications where ABTech’s custom spindles deliver superior performance. ## **1. Optical Lens Manufacturing & Finishing** **The Challenge:** In optical lens manufacturing, the surfaces of high-performance lenses, mirrors, and optical components for telescopes, satellites, and lithography systems demand near-perfect form and a flawless, super-smooth finish, often measured in angstroms. **The Air-Bearing Solution:** - **Vibration-Free Motion:** The absence of mechanical contact in a high-speed air spindle eliminates the micro-vibrations inherent in ball-bearing systems. This ensures that polishing and grinding processes create exceptionally smooth surfaces free of imperfections. - **Superior Form Accuracy:** The exceptional stiffness and **nanometer-level error motions** of an optimally balanced ABTech air-bearing spindle ensure that complex aspheric and freeform optical shapes are produced with perfect geometry, meeting the strictest industry requirements. **Target Industries:** **Optics, Aerospace, Semiconductor.**   ## **2. Ultra-Precision Diamond Turning** **The Challenge:** The goal of high precision machining and diamond turning is to machine complex components from non-ferrous materials to a mirror-like finish directly on the machine. This bypasses the need for secondary polishing operations, saving time and money, but requires incredible rotational stability. **The Air-Bearing Solution:** - **High Rotational Speed & Stability:** The ability to spin at speeds up to **30,000 RPM** with incredible stability allows a single-point diamond tool to make exceptionally smooth, consistent cuts. - **Asynchronous Error Motion:** Air bearings feature extremely low asynchronous (random) error motion. This directly translates to a surface finish that is unmatched by any other turning method. **Target Industries:** **Manufacturing, Medical (implants), Aerospace, Automotive.**   ## **3. High-Speed Grinding & Dicing** **The Challenge:** Achieving high material removal rates on hard or brittle materials, like industrial ceramics or semiconductor wafers, without introducing thermal damage, micro-cracks, or compromising the part's geometric accuracy. **The Air-Bearing Solution:** - **Low Thermal Growth:** The constant airflow through an air bearing actively dissipates heat. This prevents thermal expansion of the spindle or workpiece, which is critical for maintaining tight tolerances during long grinding cycles. - **High Speed & Stiffness:** A high speed grinding spindle with exceptional stiffness allows for smaller grinding wheels to be used at their optimal surface speeds, resulting in finer finishes and less force on the part. This is crucial for the precise and delicate task of dicing semiconductor wafers. **Target Industries:** **Energy (turbine components), Aviation, Semiconductor, Manufacturing.**   ## **4. Metrology & Inspection Systems** **The Challenge:** To measure a component with nanometer-level accuracy, the reference axis used for measurement must be an order of magnitude more accurate than the part itself. This is the core of precision spindle metrology. **The Air-Bearing Solution:** - **The Perfect Axis of Rotation:** A high-speed spindle provides a near-perfect axis of rotation with virtually zero wobble or runout, making it the ultimate foundation for the most demanding Coordinate Measuring Machines (CMMs), roundness gages, and optical inspection systems. - **Exceptional Repeatability:** The frictionless, wear-free design ensures that the measurement axis remains perfectly consistent over millions of cycles. **Target Industries:** All, but especially **Aerospace, Automotive,** and **Aviation,** where validation is critical.   ## **5. Semiconductor Wafer Handling & Processing** **The Challenge:** The manufacturing of microchips involves multiple steps—lithography, scanning, inspection—where the silicon wafer must be moved and positioned with extreme smoothness and precision in a cleanroom environment. **The Air-Bearing Solution:** - **Contamination-Free Operation:** Since there is no mechanical contact, there is no lubricant to outgas and no wear particles to generate. This makes air bearings inherently cleanroom-compatible. - **Smooth, Cog-Free Motion:** The frictionless motion is essential for scanning applications in lithography and inspection, ensuring consistent velocity without the micro-stutters (cogging) of a mechanical motor. **Target Industries:** **Semiconductor.**   ## Why Choose Us for Your Precision Motion Systems ABTech delivers engineered spindles built to meet the highest performance, durability, and integration standards. Whether you need a custom high speed spindle, a precision spindle for metrology, or a robust air turbine spindle for grinding, our modular platforms adapt to your system. **Design Benefits:** - **Robust Build**: Hardened stainless steel shafts, bronze journals. - **Custom Spindles**: Configurable for high-speed or low-speed applications. - **Flexible Mounting**: Flange, foot, or athermal configurations. - **Seamless Integration**: Compatible with CNCs and motion controllers. -   ## **Our Product Portfolio** ABTech provides complete precision motion systems and custom solutions. Explore our full line of precision components: - [**Air-Bearing Spindles**](https://www.abtechmfg.com/precision-motion-components/spindles/air-bearing-spindles/) - [**Mechanical Bearing Spindles**](https://www.abtechmfg.com/precision-motion-components/spindles/mechanical-bearing-spindles/) - [**Rotary Table**](https://www.abtechmfg.com/precision-motion-components/rotary-tables) - [**Linear Stages**](https://www.abtechmfg.com/precision-motion-components/linear-stages) - [**Accessories**](https://www.abtechmfg.com/measurement-accessories) **Can’t Find What You’re Looking For?** With a modular design approach and complete engineering support, our team is ready to provide a unique OEM solution for your ultra-precision motion needs. *ABTech is proud to be ****Made in the U.S.A of the U.S. and imported parts****.*   ## **Quick links to our spindles** - [Explore Air-Bearing Spindles](https://www.abtechmfg.com/precision-motion-components/spindles/air-bearing-spindles/) - [Explore Mechanical Bearing Spindles](https://www.abtechmfg.com/precision-motion-components/spindles/mechanical-bearing-spindles/)   [**Contact us to discuss your specific requirements**](https://info.abtechmfg.com/contact)   [![Speak to the Experts at Abtech](https://no-cache.hubspot.com/cta/default/5052177/ae02036b-227a-4802-8f9a-db9a8911ca2d.png)](https://cta-redirect.hubspot.com/cta/redirect/5052177/ae02036b-227a-4802-8f9a-db9a8911ca2d) ### Subscribe to ABTech’s Blog ### Recent Posts ## Solutions ![made in the USA](https://blog.abtechmfg.com/hubfs/Website%20Refresh_2024/Logos/icon_made-in-usa.png) ## About ## Join our mailing list and never miss an update. ![](https://blog.abtechmfg.com/hubfs/ABTech_August2023/Images/logo.png) 126 Route 12 North Fitzwilliam, New Hampshire 03447 (603) 585-7106 [**Contact Us**](https://info.abtechmfg.com/contact) [![](https://blog.abtechmfg.com/hubfs/Website%20Refresh_2024/Icons%20and%20Graphics/Social%20Icons/social-icon_linkedin.png)](https://www.linkedin.com/company/abtech-inc-/) [![](https://blog.abtechmfg.com/hubfs/Website%20Refresh_2024/Icons%20and%20Graphics/Social%20Icons/social-icon_twitter.png)](https://twitter.com/ABTechInc) [![](https://blog.abtechmfg.com/hubfs/Website%20Refresh_2024/Icons%20and%20Graphics/Social%20Icons/social-icon_facebook.png)](https://www.facebook.com/ABTechMFG) [![](https://blog.abtechmfg.com/hubfs/Website%20Refresh_2024/Icons%20and%20Graphics/Social%20Icons/social-icon_instagram.png)](https://www.instagram.com/abtechmanufacturing/) [![](https://blog.abtechmfg.com/hubfs/Website%20Refresh_2024/Icons%20and%20Graphics/Social%20Icons/social-icon_youtube.png)](https://www.youtube.com/user/ABTechInc/videos?reload=9) Proud Members of: ![](https://blog.abtechmfg.com/hubfs/Website%20Refresh_2024/Logos/aspe-logo.png) ![](https://blog.abtechmfg.com/hubfs/Website%20Refresh_2024/Logos/ntsl-international-logo.png) ![](https://blog.abtechmfg.com/hubfs/Website%20Refresh_2024/Logos/spie-logo.png) ![](https://blog.abtechmfg.com/hubfs/Website%20Refresh_2024/Logos/sba-logo-stacked.png) ![](https://blog.abtechmfg.com/hubfs/Website%20Refresh_2024/Logos/A3logo.png) © 2026 Copyright ABTech Inc. 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