Motorized Air Bearing Tables
ABTech inc has integrated many of our standard ultra-precision air bearings with matched direct drive brushless DC motors, digital drives and high resolution rotary encoders into fully functional precision spin tables and rotary index tables.
ABTech's modular design and full engineering services can respond quickly to provide a solution to your O.E.M. requirements for ultra-precision rotary motion.
AT Series Air Bearing Tables Feature:
- Zero static friction
- Ultra smooth motion with absolute repeatability
- Durable hardened 440 C stainless steel construction
- Radial and axial accuracies from 10.0 to 1.0 micro-inch
- High load capacity and stiffness
- Low air consumption
- Horizontal or vertical orientation
- Avaliable accessories:
- Tunable vacuum or pressurized gas feed through
- Fine adjust tilt and center worktables
- Larger diameter worktables
- Standard and custom sized clear apertures
- Custom tooling, fixturing and bolt circle patterns
- Filter/regulator assembly
- Natural granite bases and vibration isolation stands
- Electronic gages and gage stands
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AT100 Air Bearing Table w/ Direct Drive
- 4" AT series rotary air bearing
- High torque brushless DC direct drive motor
- Digital drive amplifier with variable speed control
- Radial/axial accuracies to 2.0 µ"
- Angular error motion of spindle axis of rotation: 1.0 µ″/in (coning error)
- High resolution encoders
- Air consumption: 1.0 scfm
- Air supply (recommended): 60 psi
- Shown with optional foot mount for horizontal axis orientation
- Available with different motor torque and speed options to fit your application
- Request information on this product
 Download a printable datasheet
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AT100 Air Bearing w/ Flange Mount Motor
- 4" AT series rotary air bearing
- Flange mount housing
- Radial/axial accuracies to 2.0 µ"
- Angular error motion of spindle axis of rotation: 1.0 µ″/in (coning error)
- Axial load capacity: 50 lbs
- Axial stiffness: 0.6 lbs/µ″
- Radial stiffness: 0.24 lbs/µ"
- Brushless DC direct drive motor
- Renishaw Ø115 mm, 20 µm pitch RESR rotary ring
- Renishaw Signum series read head
- Rotational speed: 60 RPM max
- Horizontal or vertical orientation
- Air consumption: 1.0 scfm
- Air supply (recommended): 60 psi
- Available with different motor torque and speed options to fit your application
- Request information on this product
- Download a printable datasheet
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AT150 Air Bearing Table w/ Direct Drive
- 6" AT series rotary air bearing
- High torque brushless DC direct drive motor
- Digital drive amplifier with variable speed control
- High resolution encoders
- Shown with optional foot mount for horizontal axis orientation
- Request information on this product
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AT200 Air Bearing Table w/ Direct Drive
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AT300 Air Bearing w/ 6" Clear Aperture Worktable
- Model AT300 12" air bearing spin table
- Model TC8 tilt and center worktable
- 6" clear apertures throughout
- Accuracies available to 1.0 microinch
- Hardened stainless steel construction
- Ultra-smooth motion with absolute repeatability
- High load capacity and stiffness
- High torque brushless DC direct drive motor
- Digital drive amplifier with variable speed control
- High resolution encoder
- Optional equipment and accessories:
- Tunable vacuum or pressurized gas feed through
- Worktables available to 600 mm (23.62")
- Custom tooling, fixturing and bolt circle patterns
- Filter/regulator assembly
- Natural granite bases and vibration isolation stands
- Electronic gages and gage stands
- Ideal for lens alignment or measurement
- Request information on this product
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AT300GT Air Bearing Wet Grind Table
Used as an accessory on your surface grinder you will achieve less than 20 µ" flatness and exceptional surface finish. Shown here with 16" vacuum chuck and optional sine plate for concave or convex grinding. AT200GT unit also available with an 8" air bearing rotary table.
- Model AT300 12" air bearing spin table
- Lead screw driven scissor lift sine plate
- Accuracies available to 1.0 microinch
- Hardened stainless steel construction
- Ultra-smooth motion with absolute repeatability
- High load capacity and stiffness
- High torque brushless DC motor
- Digital drive amplifier with variable speed control
- High resolution encoder
- Non influencing belt drive (direct drive design also available)
- Sealed for light to moderate wet applications
- Request information on this product
- Download a printable datasheet
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Custom Air Bearing Drum Roller
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Turn-Key Rotary Air Bearing System
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8" air bearing inset into grade A granite surface plate
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Integrated direct drive brushless DC motor
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Digital drive amplifier
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Ultra-high resolution encoder
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Positional & repeatable accuracy < 1 arc sec
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Radial/axial accuracy < 5µ"
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Welded steel base frame with passive vibration mounts
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400 lb load capacity
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Windows based industrial PC
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LabView user interface
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17" LCD monitor
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Large Diameter Clear Aperture Air Bearing Reference Axis
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Custom sized through hole designs for optical lens alignment assembly
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Radial/axial error motions to 1µ" (0.025µm)
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Angular error motions: 1µ"/in (0.025µm/25mm)
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High load capacity
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Low air consumption
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Ultra-smooth rotary motion
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Modular design
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Supported by two trunnion bearings for rotation of centerline from vertical to horizontal
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Motor drives/controllers available
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Clean room compatible
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Will build to suit any application
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Don't see what you need? ABTech welcomes the opportunity to meet your unique motion challenges. We have a successful track record for high quality custom design and manufacturing of air bearing, oil hydrostatic, and mechanical bearing systems for the most challenging motion and geometry applications. Contact us today so we can provide you with a solution to your demanding precision motion applications!
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