Canon Air Spindle Motor
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[edit] Product Name
Canon Air Spindle Motor
[edit] Manufacturer Part Number
Air Spindle
[edit] Product Date
circa January 2003
[edit] Product Image
[edit] Manufacturer Provided Specifications and Description
- Overview
Rotation Precision Exceeding Sub-Microns, High Rigidity, High Endurance, Canon's Air Bearings Have Them All
Canon's air bearings, developed originally as a key component in super-high precision manufacturing technology, have a special structure that gives them superior characteristics such as high rigidity incomparable with any other, high precision, and high endurance.
Rotation Precision Exceeding Sub-Microns, High Rigidity, High Endurance
Canon’s Air Bearings Have Them All Canon’s air bearings, developed originally as a key component in super-high precision manufacturing technology, have a special structure that gives them superior characteristics such as high rigidity incomparable with any other, high precision, and high endurance.
The rotation precision of an air bearing is designed to be 0.05µm maximum, much more precise than ball bearings. Another factor that is crucial in achieving high precision is that the reproducibility be 0.01µm maximum and that this value can be maintained.
Canon’s air bearings use porous chokes in their bearings, so even under normal factory supply-air pressure (490 kpa), they are sufficiently rigid for common use. Compared with bearings with orifice chokes and selfformed chokes, the rigidity per unit area is higher, the flow consumption is about ten times (one digit) smaller, and the damping capacity is also higher than that of bearings with other types of chokes.
- Features
- Compact, keeping high accuracy rotation of air bearing by using built-in motor.
- Adopted DC brushless motor, realized low generation of heat, high precision rotation.
- Smooth rotation with very few cogging by using coreless motor.
- Application Example (R-1)
- for Measurement: Spinstand for HDD, Spinstand for optical disk, Polygon mirror inspection
- for Processing: Grinding machine, cutting machine, Main axial of machine tool
- Other: High precision rotary table, table
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