Alumina Oxide Balls/Zirconia Oxide Balls/Silicon Nitride Ceramic Balls

Model NO.: 3.969mm G5 grade
Trademark: OEM
Specification: 3.175mm and above
Origin: Shandong, China
HS Code: 6909110000
Model NO.: 3.969mm G5 grade
Trademark: OEM
Specification: 3.175mm and above
Origin: Shandong, China
HS Code: 6909110000

Material Specifications

  Alumina Oxide Zirconia Oxide Silicon Nitride
Composition 99.5% Al2O3 / 0.5% other 97% ZrO2 / 3% MgO 87% Si3N4 / 13% other
Hardness 1700 Hv 80 - 84 Ra 1400 - 1700 Hv
Ultimate Tensile Strength 31,000 psi 60,000 psi -
Ultimate Compressive Strength >300,000 psi 285,000 psi >570,000 psi
Modulus of Elasticity 53 x106 psi 29 x106 psi 44-45 x106 psi
Maximum Working Temperature 1400ºC 2400ºC 1000ºC
Corrosion Resistance Inert except for hydruofluric and hot concentrated sulphuric acids. Inert to most substances, not recommended for environments of hydrochloric or strong alkaline solutions. Inert to most substances.
 

Description

These balls can be made from either Alumina Oxide, Zirconia Oxide or Silicon Nitride and have several advantages over their steel equivalents. They're 40% less dense than steel, have a 29% lower thermal expansion (so they hold their shape better when the temperature changes) and are 150% harder.

Benefits

Lightweight, hard and tough, with a low mass, these balls are particularly suited to environments which demand arduous, high speed bearing applications, for example machine tool spindles and vacuum pumps. Because they're so hard this reduces the amount of friction present and thus more of the energy is converted to work, making them more efficient; in some high-speed applications ceramic balls can last 100 times longer than steel. They're also inert (chemically inactive) to most substances, so they offer excellent corrosion resistance.

Use

You'll find these used in the automotive and aviation industries (their durability and light weight makes them perfect for use in aircraft braking assemblies for example) and they're often found in many of the items that once used more traditional metal balls, like aerosol paint cans, all manner of joints and slides (like car seats and safety restraints) as well as castors, ball transfer units, quick disconnect couplings and various kinds of fasteners.


Alumina Oxide Balls/Zirconia Oxide Balls/Silicon Nitride Ceramic Balls

Alumina Oxide Balls/Zirconia Oxide Balls/Silicon Nitride Ceramic Balls
Alumina Oxide Balls/Zirconia Oxide Balls/Silicon Nitride Ceramic Balls
 

Material Specifications

  Alumina Oxide Zirconia Oxide Silicon Nitride
Composition 99.5% Al2O3 / 0.5% other 97% ZrO2 / 3% MgO 87% Si3N4 / 13% other
Hardness 1700 Hv 80 - 84 Ra 1400 - 1700 Hv
Ultimate Tensile Strength 31,000 psi 60,000 psi -
Ultimate Compressive Strength >300,000 psi 285,000 psi >570,000 psi
Modulus of Elasticity 53 x106 psi 29 x106 psi 44-45 x106 psi
Maximum Working Temperature 1400ºC 2400ºC 1000ºC
Corrosion Resistance Inert except for hydruofluric and hot concentrated sulphuric acids. Inert to most substances, not recommended for environments of hydrochloric or strong alkaline solutions. Inert to most substances.
 

Description

These balls can be made from either Alumina Oxide, Zirconia Oxide or Silicon Nitride and have several advantages over their steel equivalents. They're 40% less dense than steel, have a 29% lower thermal expansion (so they hold their shape better when the temperature changes) and are 150% harder.

Benefits

Lightweight, hard and tough, with a low mass, these balls are particularly suited to environments which demand arduous, high speed bearing applications, for example machine tool spindles and vacuum pumps. Because they're so hard this reduces the amount of friction present and thus more of the energy is converted to work, making them more efficient; in some high-speed applications ceramic balls can last 100 times longer than steel. They're also inert (chemically inactive) to most substances, so they offer excellent corrosion resistance.

Use

You'll find these used in the automotive and aviation industries (their durability and light weight makes them perfect for use in aircraft braking assemblies for example) and they're often found in many of the items that once used more traditional metal balls, like aerosol paint cans, all manner of joints and slides (like car seats and safety restraints) as well as castors, ball transfer units, quick disconnect couplings and various kinds of fasteners.


Alumina Oxide Balls/Zirconia Oxide Balls/Silicon Nitride Ceramic Balls

Alumina Oxide Balls/Zirconia Oxide Balls/Silicon Nitride Ceramic Balls
Alumina Oxide Balls/Zirconia Oxide Balls/Silicon Nitride Ceramic Balls
 

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