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G10 Silicon Nitride Ceramic Machining Ceramic Parts Si3n4 Bearing Balls

Categories Machining Ceramic Parts
Brand Name: China
Model Number: 008
Place of Origin: Suzhou,China
MOQ: 100pcs
Price: Negotiable
Payment Terms: T/T
Supply Ability: 10000 Piece/Pieces per Month
Delivery Time: 25 days
Packaging Details: Box, Carton, Wooden, Bag etc. Customized package
Product name: G10 Silicon Nitride Ceramic Si3n4 Bearing Balls
Material: Silicon Nitride
Application: Industrial Ceramic
Fracture toughness: 5.0~7.0
Water Absorption: 0%
Electrical Insulation: excellent
Density: 3.2g/cm3
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G10 Silicon Nitride Ceramic Machining Ceramic Parts Si3n4 Bearing Balls

G10 Silicon Nitride Ceramic Si3n4 Bearing Balls


Description:


Silicon nitride ceramic balls are precision ceramics sintered at high temperature in a non-oxidizing atmosphere. It has high strength, high wear resistance, high temperature resistance, corrosion resistance, acid and alkali resistance, and can be used for in seawater for a pretty long time with good electrical and magnetic insulation.


Its density is only 3.20g/cm3 which is almost 1/3 of the weight of bearing steel, and this makes it has small eccentric force and can achieve high speed rotation. with the property of self-lubricating, it can be used under the environment where there is no lubricating medium and has high pollution, thus makes it the first choice for ceramic bearings and hybrid ceramic ball bearings.


Technical Parameters:


Mechanical behaviorUnitAl2O3SiCSi3N4ZrO2
Colour-------Light yellowblackblackwhite,black
Densityg/cm33.953.153.26
Bending strengthMPa300~400400~500800~1200950~1200
Elastic modulus EGPa380350300-320210
Poisson's ratio0.220.140.26--------
HardnessHv18002000~25001400~1700
1100~1300
HRC8085~9075~8070~75
Fracture toughnessMPa·m1/23.0~4.03.0~4.05.0~7.08.0~10.0
Maximum use temperature10001300400400
Thermal expansion coefficient10-6/℃8.443.310.3



Advantages:

1. Excellent high temperature strength.
2. High breaking strength.
3. excellent thermal shock-resistant.
4. Resist to chemical corrosion.
5. lubricating property.


Application:


Most ceramic balls are mounted in the bearing (high-speed bearing, high precision bearing, vacuum bearing, high/low-temperature bearing, nonmagnetic bearing, high precision ball screws) for the high technology industry, such as aerospace and national defense and etc. The ceramic balls can also be used for chemistry, metallurgy, medical treatment, food industry, oilfield, electronic engineering and etc.


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