Aluminum Oxide Bearing Balls Description
Aluminum Oxide Bearing Balls are high-performance ceramic components engineered for
extreme environments. Resistant to most corrosive chemicals-except hydrochloric
acid, hydrofluoric acid, and strong alkalis-these balls are non-porous,
lightweight, and harder than steel. With exceptionally low friction and the
ability to spin at higher speeds than traditional steel balls, they are ideal
for high-speed, high-precision, and corrosion-resistant bearing applications
across aerospace, chemical, and industrial sectors.
Aluminum Oxide Bearing Balls Applications
1. High-Speed Bearings
Due to their low friction and high
hardness, Al₂O₃ balls are ideal for precision, high-RPM bearing systems,
including in turbines, spindles, and dental tools.
2. Chemical and Corrosive
Environments
Thanks to their excellent chemical
resistance, they are widely used in chemical processing equipment, fluid pumps,
and valves handling corrosive or reactive fluids.
Aluminum Oxide Bearing Balls Packaging
Our products are packaged in customized cartons of various
sizes based on the material dimensions. Small items are securely packed in PP
boxes, while larger items are placed in custom wooden crates. We ensure strict
adherence to packaging customization and the use of appropriate cushioning
materials to provide optimal protection during transportation.
Packaging: Carton, Wooden Box, or Customized.
Kindly review the packaging
details provided for your reference.
Manufacturing Process
1. Testing Method
(1) Chemical Composition Analysis - Verified using techniques
such as GDMS or XRF to ensure compliance with purity requirements.
(2) Mechanical Properties Testing - Includes tensile strength,
yield strength, and elongation tests to assess material performance.
(3) Dimensional Inspection - Measures thickness, width, and
length to ensure adherence to specified tolerances.
(4) Surface Quality Inspection - Checks for defects such as
scratches, cracks, or inclusions through visual and ultrasonic examination.
(5) Hardness Testing - Determines material hardness to confirm
uniformity and mechanical reliability.
Please refer to the SAM testing procedures for detailed information.
Aluminum Oxide Bearing Balls FAQs
Q1. What are Aluminum Oxide Bearing Balls?
Aluminum Oxide Bearing Balls are precision ceramic
components made from Al₂O₃, known for their high hardness, chemical resistance,
and lightweight properties. They are commonly used in demanding environments
where metal balls would fail.
Q2. What are the advantages of Al₂O₃ bearing balls over
steel balls?
Harder than steel (improves wear resistance)
Lighter weight (reduces rotational mass)
Excellent corrosion resistance
Non-magnetic and electrically insulating
Capable of higher speeds and lower friction
Q3. What environments are suitable for aluminum oxide
balls?
They perform best in corrosive, high-speed, non-lubricated,
and high-temperature environments, such as in chemical processing, aerospace,
and medical devices.
Performance Comparison Table with Competitive Products
|
Property
|
Alumina (Al₂O₃) Bearing Balls
|
Silicon Carbide (SiC) Bearing Balls
|
|
Material Composition
|
Aluminum Oxide (Al₂O₃)
|
Silicon Carbide (SiC)
|
|
Hardness
|
High (Mohs ~9)
|
Very High (Mohs ~9.5)
|
|
Density
|
~3.9 g/cm³
|
~3.1 g/cm³ (lighter than alumina)
|
|
Wear Resistance
|
Excellent
|
Superior
|
|
Corrosion Resistance
|
Excellent, except HF, HCl, strong alkalis
|
Outstanding, resistant to most acids and alkalis
|
|
Thermal Conductivity
|
Moderate
|
Very High
|
|
Thermal Shock Resistance
|
Moderate
|
Excellent
|
|
Electrical Properties
|
Electrically insulating
|
Semiconductive
|
|
Friction Coefficient
|
Very Low
|
Low
|
|
Max. Operating Temperature
|
~1600 °C
|
~1800 °C
|
|
Cost
|
Moderate
|
Higher
|
글쓰기
변환기 및 계산기
