Sapphire bearing sapphire optical ring window no bubbles high hardness wear
Multi-functional components with excellent properties of sapphire materials are widely used in bearing and optical fields. It is made of high purity synthetic sapphire (single crystal alumina, Al₂O₃) with high hardness, high light transmittance and resistance to extreme environments. In the bearing, the sapphire optical ring window is not only used as a support structure, but also can realize the transmission or monitoring of optical signals, which is an indispensable key component in precision equipment.
Sapphire bearing properties
(1) Sapphire material
Ultra-high hardness: Mohs hardness of up to 9, second only to diamond, excellent wear resistance.
High light transmittance: Excellent light transmittance in the ultraviolet to infrared band, suitable for optical applications.
High temperature resistance: can withstand temperatures up to 1800°C, suitable for extreme environments.
Corrosion resistance: Extremely resistant to acids, alkalis and other chemicals.
(2) bearing
Low friction coefficient: Reduce energy loss and improve equipment operation efficiency.
High precision: As a bearing component, to ensure the smooth and accurate operation of the equipment.
Long life: Wear resistance and corrosion resistance significantly extend the service life of the bearing.
(3) Optical window
Optical signal transmission: Optical functions are integrated in the bearing to achieve real-time monitoring or data transmission.
Pressure and impact resistance: High strength and toughness make it able to withstand high pressure and impact environments.
Multifunctional integration: Combine bearing support and optical window functions to simplify device design.
Sapphire bearing parameters
| Sapphire windows / blanks |
| Available orientations: | C-axis [0001], R-axis [1-102], A-axis [11-20], M-axis [10-10], Random |
| Diameter / Width: | 25.0 - 250.0 mm |
| Tolerance: | Standard ± 2°, Special to ± 0.1° |
| Thickness: | Minimum 0.15, maximum 120.0 mm |
| Surface finish: | As cut, fine ground, lapped, polished s/d 80/50, 60/40, 40/20, 20/10, 10/5, according to the MIL-0-13830A |
| Ends / Edge quality: | Fine ground, 80/50 |
| "As-grown" sapphire tubes: |
| Dimensions | Up to 50 mm inner diameter, 0,5 - 4,0 mm wall thickness, 300-600 mm tubes length |
| Orientation | C-axis in the length of the tube |
| Polished sapphire tubes: | Up to 50 mm inside diameter, 0,5 - 3,0 mm wall thickness, 80-350 mm tubes length |
| Ingots: | Diameter/Width 5-220 mm, Thickness/Length 25 – 125 mm |
| Surface quality | As-cut, Ends/Edge Quality Diamond cut |
Sapphire bearing application
(1) Precision instruments: High precision measuring equipment, optical instruments and microscopes.Low friction and high light transmission ensure the stability and optical performance of the equipment operation.
(2) Aerospace: For aircraft engines, satellite components and spacecraft.High temperature resistance, corrosion resistance and optical features suitable for monitoring and transmission in extreme environments.
(3) High-end industrial equipment: Used in semiconductor manufacturing equipment, laser cutting machines and high-speed rotating machinery.Wear resistance and optical properties improve equipment life and operating efficiency.
(4) Medical equipment: For endoscopes, surgical instruments and medical imaging systems.Biocompatibility and high light transmission ensure safety and accuracy.
(5) Optical monitoring system: For bearing condition monitoring, optical sensors and laser equipment.Integrated optical window function for real-time monitoring and data transmission.
Sapphire bearing components
FAQ
