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Pièces de saphir
Created with Pixso. ​​Custom Through-Hole Sapphire Bearings Precision Sliding Bearing​ Based on Drawings

​​Custom Through-Hole Sapphire Bearings Precision Sliding Bearing​ Based on Drawings

Nom De Marque: ZMSH
Numéro De Modèle: incidences de saphir
MOQ: 25
Prix: by case
Délai De Livraison: 2-4 semaines
Conditions De Paiement: T / t
Informations détaillées
Lieu d'origine:
CHINE
Certification:
rohs
Composition du matériau:
Saphir synthétique (α-Al₂O₃), pureté ≥99,99 %
Taille / forme:
Personnalisé
Dureté de Mohs:
Niveau 9
Coefficient de frottement​​:
0,08 à 0,12
Plage de température:
-200°C ~ +1800°C
Rugosité de surface:
Ra ≤0,005μm (polissage de qualité miroir)
Détails d'emballage:
Emballage dans une salle de nettoyage à 100 niveaux
Description de produit

Sapphire Bearings Overview​

 

 

​​Custom Through-Hole Sapphire Bearings Precision Sliding Bearing​ Based on Drawings

 

​​Custom Through-Hole Sapphire Bearings Precision Sliding Bearing​ Based on Drawings 0

 

A sapphire bearing is a precision sliding bearing that uses synthetic sapphire (single-crystal aluminum oxide, α-Al₂O₃) as its core material, formed through high-temperature melt growth and precision machining. With a Mohs hardness of 9 (second only to diamond), it exhibits an extremely low friction coefficient, excellent wear resistance, and strong corrosion resistance. Recognized as an ideal bearing material for instruments, control devices, and high-precision mechanical systems, it maintains long-term stable operation under harsh conditions such as high temperatures and strong corrosive environments.

 

 

 


 

Sapphire Bearings Characteristic

 
 
  • Exceptional Hardness​​: Its outstanding hardness provides wear and impact resistance, reducing friction loss during equipment operation and extending service life.
  • ​​Strong Environmental Adaptability​​: It can withstand high and low temperatures (-200°C to 500°C), humidity, chemical corrosion, and other complex working conditions.
  • ​​Stable Precision​​: The high surface finish ensures accurate positioning of equipment during high-speed or micro-operation.

 

 

​​Custom Through-Hole Sapphire Bearings Precision Sliding Bearing​ Based on Drawings 1​​Custom Through-Hole Sapphire Bearings Precision Sliding Bearing​ Based on Drawings 2

 

 


 

​​Sapphire Bearings Application Fields​

 
​​Custom Through-Hole Sapphire Bearings Precision Sliding Bearing​ Based on Drawings 3
  1. Precision Instruments​​: In laboratory spectrometers, analytical balances, and medical equipment like CT scanners and blood analyzers, sapphire bearings maintain stability during high-frequency, high-precision operations, preventing measurement errors caused by wear.
  2. ​​Industrial Automation​​: Used in servo motors of automated production lines, robotic arm joints, and spindle components of CNC machine tools, their high wear resistance reduces downtime for maintenance and improves production efficiency.
  3. ​​Equipment for Extreme Environments​​: Aerospace instruments (e.g., gyroscopes) can withstand high-altitude low temperatures and low pressure; deep-sea exploration equipment (e.g., underwater robots) can resist seawater corrosion; outdoor meteorological monitors can endure weather exposure, ensuring continuous and reliable data acquisition.
  4. ​​Consumer Electronics & High-End Equipment​​: In the movements of smartwatches and mechanical watches, sapphire bearings ensure accurate timekeeping; in laser cutting equipment and optical communication modules, they reduce component wear and extend the equipment's service life.

 

 

​​Custom Through-Hole Sapphire Bearings Precision Sliding Bearing​ Based on Drawings 4
 
 

 

Sapphire Bearings Key Data

 
 
Parameter Category Specific Value/Characteristic
​​Material Composition​​ Synthetic Sapphire (α-Al₂O₃), purity ≥99.99%
​​Mohs Hardness​​ Level 9
​​Friction Coefficient​​ 0.08–0.12 (against steel)
​​Temperature Range​​ -200°C ~ +1800°C
​​Surface Roughness​​ Ra ≤0.005μm (mirror-grade polish)
​​Corrosion Resistance​​ Resistant to acids/alkalis (except HF), oxidation
​​Thermal Conductivity​​ 25.12 W/m·K (@100°C)
​​Dielectric Constant​​ 11.5 (∥c-axis), 9.3 (⊥c-axis)

 

Sapphire Bearings Q&A

 

 

1. Q: How does a jewel bearing work?

    A: A jewel bearing operates by allowing a metal spindle to rotate within a pivot hole lined with a hard gemstone material (like synthetic sapphire or ruby), which minimizes friction through its ultra-smooth, hard surface.

 

 

2. Q: What are the types of bearings?

    A:Bearings are primarily categorized into two main types: rolling element bearings (such as ball bearings and roller bearings) and plain/sliding bearings (like jewel bearings or fluid bearings), each designed to support different load directions and motion requirements.

 

 


Tags: # ​​Custom Through-Hole Sapphire Bearings, #Sapphire Bearings​, #​​Double-Side Polished, #High-Purity, #Optical Component, #Corrosion-Resistant, #High-Temperature Rated​​, #Mohs Hardness 9, #Precision Instrumentation​​, #Aluminum Oxide, Al₂O₃, #Sapphire, #Precision Sliding Bearing, #Bearing​ Based on Drawings