The PIglide HB series with spherical air bearings makes unique positioning and simulation applications possible in the fields of research and industry. The bearings offer excellent load capacity and stiffness, and at the same time, inherent friction-free motion on three rotational axes. The spherical bearings, which are often used in research on weightlessness in satellites, are also used in systems for precision chip contacting and optical alignment. Due to the use of spherical bearings at both ends of the drive screw shaft, it is possible to build extremely stiff drive screws. This arrangement allows precision alignment of the drive screw shaft due to the motion of one spherical bearing relative to the other.
Hemispherical Air Bearing Module
| Device | Hemispherical Air Bearing Module |
| Manufacturer | Physik Instrumente (PI) GmbH & Co. KG. |
| Model | A-654.045 PIglide HB |
| Function | Attitude test , ±45° tip/tilt range, 150 mm diameter, 160 kg load capacity, 1,350 g base mass, 1,475 g sphere mass, 4.21g m2 moment of inertia |
| Active axes | θX, θY,θZ |
| Rotation range | 90° in θX, 90° in θY, and 360° in θZ |
| Moment of inertia (unloaded, kg-mm2) | 4,210 in θX, 4,210 in θY, and 4,210 in θZ |
| Overall mass | 2,825 g |
| Permissible push force in Z | 1,600 N |
| Material | Hardcoat aluminum, stainless steel mounting hardware |
| Operatingn pressure | 515-585 kPa (or 75-85 psi) |
| Air consumption | 28 L min-1 |
| Air quality | Clean (filtered up to 1.0 μm or better) - ISO 8573–1 class 1, Oil free - ISO 8573–1 class 1, Dry (-15 °C dew point) - ISO 8573–1 class 3 |
| Platform | Minimum: 440 mm Maximum: 540 mm |
| Plasma device | Backward diffusion plasma source, 2 pieces Plasma source current control box 10 inch (VF250) plasma device container, 2 pieces |
| Gas filling | Vacuum valve NW25, 2 pieces Needle valve SS-SS4-VH, 2 pieces SUS304 tube ¼ inch, 2 pieces |
Pedestal
| Device | Compatible with A-654 PIglide HB Hemispherical Air Bearing Module |
| Manufacturer | Physik Instrumente (PI) GmbH & Co. KG. |
| Model | A-654.PED Pedestal |
| Function | Support the A-654 PIglide HB |
| Mass | 16 kg |
| Inner length | 1500 mm |
| Dimension | 457 mm D x 797 mm H |
Air Prep Kit (Filter & Regulation)
| Device | Air preparation kit, 4-stage |
| Manufacturer | Physik Instrumente (PI) GmbH & Co. KG. |
| Model | A-801.100 Air Prep Kit (Filter & Regulation) |
| Function | Air preparation kit, 4-stage |
| Maximum flow | 60 SCFM (1680 SLPM) |
| Required compressed air inlet quality (ISO 8573-1) | As desired |
| Max inlet pressure | 150 psi (1035 kPa) |
| Air outlets | 1 |
| Compressed air outlet quality (ISO 8573-1) | Class 1 (oil and particles) |
| Materials | Aluminum |
| Mass | 4.2 kg |
| Pressure switch | None |