The NSK Nakanishi ABT-1000 is an Air Bearing spindle that can run up to 100,000 RPM with an output of 88W. Ideal for extremely high precision, small diameter machining applications.

Air bearings use compressed air blown into a small gap between the spindle and the bearing surface. The spindle floats on an even cushion of compressed air. This non-contact type of bearing means the spindle has a very long service life because of low friction and wear; it also means that the spindle generates almost no heat or vibration.

The spindle and bearing are finished with a very high-accuracy process to ensure extremely low vibration and very high rotating accuracy.

The ABT Series are equipped with a Rotational Speed Detection Sensor. When in operation, a digital pulse signal representing the RPM can be output. The rotation speed and load condition can be monitored using a high performance, locally available speed meter.

Specifications:

Spindle Accuracy: Within 1 µm
Main Body Mount Method: Outside Mounting Diameters clamp method
Bearing Type: Static Air Bearing
Proper Air Pressure for Air Bearing: 80 PSI
Air Consumption for Air Bearing: Less than 1.77 C􀀭M
Proper Air Pressure for Air Turbine: 80 PSI
Air Consumption for Air Turbine: 4.24 C􀀭M
Bearing Load Capacity:
- Radial: Less than 20N
- Thrust: Less than 35N
- (Bearing Air supply pressure 80 PSI)
Useable Max. Diameter of Grindstone : Less than Ø 2.0 mm (for Ø 4.0 mm shank)
Hose Diameter:
- Bearing supply Ø 6 mm (1 location)
- Turbine Air supply Ø 6 mm (2 locations)
Others: Rotational Speed Detection Sensor with 5 meter cable
ABT Series can be used in conjunction with water or oil based coolants

Included Equipment:

Collet Nut (CHN-3A)
Test Bar (ø3.0 mm x 40L): 1 pc.
Bar Wrench (K-277): 1 pc.
Wrench (10 x 10): 1 pc.
Allen Wrench (2 mm): 1 pc.
Hexagon Socket Button Head Bolt (M3 x 5L): 1 pc.
Gasket (for M3 Screw): 1 pc.
Protective Cover: 1 pc.
Connection Joint (KQ2S06-M5N): 3 pcs.
Connection Joint (M-5P): 1 pc.
Cap (K1020A223): 1 pc

Additional Collet Purchase Required

Collet Chuck (CHA-[][]): ø0.5 mm~ø4.0 mm in 0.1 mm increments and ø2.35mm, ø1/8"

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