MachineU > China Products > Chemicals > Inorganic Chemicals > Non-Metallic Products > Ceramics
ROLLING BEARINGS SI3N4 SILICON NITRIDE CERAMIC BALLS for rolling bearings
ROLLING BEARINGS SI3N4 SILICON NITRIDE CERAMIC BALLS for rolling bearings
ROLLING BEARINGS SI3N4 SILICON NITRIDE CERAMIC BALLS for rolling bearings
ROLLING BEARINGS SI3N4 SILICON NITRIDE CERAMIC BALLS for rolling bearings
ROLLING BEARINGS SI3N4 SILICON NITRIDE CERAMIC BALLS for rolling bearings
ROLLING BEARINGS SI3N4 SILICON NITRIDE CERAMIC BALLS for rolling bearings
Specifications
Brand Name :
ZG
Model Number :
MS
Certification :
CE
Place of Origin :
CHINA
MOQ :
1 piece
Price :
USD10/piece
Payment Terms :
L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability :
10000 pieces
Delivery Time :
5-8 working days
Packaging Details :
Strong wooden box for Global shipping
Material :
silicon nitride
Size :
Customized
Features :
excellent wear resistance; chemical inertness; no grinding in the product to be crushed; long service life
Color :
Black
Description

Ceramic rolling bodies (balls, rollers) for rolling bearings

Ceramic rolling balls for rolling bearings with high-strength,resistant to corrosion and wear

Ceramic rolling elements for bearings have provided a new level of bearing performance and reliability. Thanks to unique properties of ceramic materials (primarily silicon nitride) it has been possible to significantly improve the durability and speed characteristics of bearings.

Related Data

Main component 99%Al2O3 S-SiC ZrO2 Si3N4
Physical
Property		 Density g/cm3 3.9 3.1 6 3.2
Water Absorption % 0 0.1 0 0.1
Sinter Temperature °C 1700 2200 1500 1800
Mechanical
Property		 Rockwell Hardness HV 1700 2200 1300 1400
Bend Strength kgf/mm2 3500 4000 9000 7000
Compression Intensity Kgf/mm2 30000 20000 20000 23000
Thermal
Property		 Maximum working
temperature		 °C 1500 1600 1300 1400
thermal expansion
coefficient
0-1000°C		 /°C 8.0*10-6 4.1*10-6(0-500°C) 9.5*10-6 2.0*10-6(0-500°C)
5.2*10-6(500-1000°C) 4.0*10-6(500-1000°C)
Thermal Shock resistance T(°C) 200 250 300 400-500
Thermal Conductivity W/m.k(25°C 31 100 3 25
300°C) 16 100 3 25
Electrical
Property		 Resisting rate of Volume ◎.cm 　 　 　 　
20°C >1012 106-108 >1010 >1011
100°C 1012-1013 – – >1011
300°C >1012 – – >1011
Insulation Breakdown
Intensity		 KV/mm 18 semiconductor 9 17.7
Dielectric Constant (1 MHz) (E) 10 – 29 7
Dielectric Dissipation (tg o) 0.4*10-3 – – –

At present, wear-resistant parts made of ceramic materials, cemented and graphite are an integral part of pumps, compressors, turbines and pipeline fittings.


Main applications:

  • installations of the electric centrifugal pumps;
  • pipeline accessories;
  • rod deep pum;
  • pumps to maintain pattern pressur;
  • rotary-plate vacuum pumps;
  • sealed pum;
  • plunger pumps;
  • slurry and mud pumps;
  • main line and supporting pum;
  • power and feed pumps;
  • various compressors and turbines.

Advantage of ceramic materials:

  • excellent wear resistance;
  • excellent corrosion resistance;
  • excellent coefficient of friction;
  • high thermal conductivity (heat removal from the friction zone, reduction of the temperature gradient and, accordingly, temperature stresses and deformations);
  • high modulus of elasticity (resistance to force deformations);
  • low temperature coefficient of linear expansion;
  • manufacturability (the possibility of providing a high quality surface treatment).

Materials:

ROLLING BEARINGS SI3N4 SILICON NITRIDE CERAMIC BALLS for rolling bearings

Product tags

silicon nitride ball bearings

,

silicon carbide ball bearings

,

silicon nitride ball bearing
Send your message to this supplier
Send Now

ROLLING BEARINGS SI3N4 SILICON NITRIDE CERAMIC BALLS for rolling bearings

Ask Latest Price
Product Detail
Brand Name :
ZG
Model Number :
MS
Certification :
CE
Place of Origin :
CHINA
MOQ :
1 piece
Price :
USD10/piece
Contact Supplier
ROLLING BEARINGS SI3N4 SILICON NITRIDE CERAMIC BALLS for rolling bearings
ROLLING BEARINGS SI3N4 SILICON NITRIDE CERAMIC BALLS for rolling bearings
ROLLING BEARINGS SI3N4 SILICON NITRIDE CERAMIC BALLS for rolling bearings

HENAN ZG INDUSTRIAL PRODUCTS CO.,LTD

Verified Supplier
5 Years
henan, zhengzhou
Since 2007
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter
Main Products :
Sic Heating Elements, MoSi2 Heating Elements, Industrial Ceramic Parts
Total Annual :
5000000-8000000
Employee Number :
50~100
Certification Level :
Verified Supplier
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products Abrasive Media
MachineU China Products Chemicals Inorganic Chemicals Non-Metallic Products Ceramics
Contact Supplier
Submit Requirement