Brand:SUT
MOQ:1
Quantity:100
1.High temperature resistant
2.Corrosion resistant
3.Longer lasting
4.ISO9001 certificate
5.Plenty of stock
Size Range: 0.4mm~140mm
Grade: G5~G60
Company Feature: Stable quality and High consistency
Compared with steel ball, Si3N4 ball has followingadvantages:
1. 59% lighter than steel ball, which means less centrifugalforce and less wear on the groove during high speed andacceleration.
2. 44% larger elastic modulus, which means less deformationunder load
3. Harder with Rockwell hardness as 78
4. Smaller friction coefficient
5. only 1/4 coefficient of thermal expansion of steel, canendure sharp fluctuation of temperature
6. Superior surface finish can be achieved, Ra could be 4~6nm
7. Can endure high temperature with high hardness and strengthup to 1050°C
8. Never rust, and can roll without lubrication.
9. More corrosion resistant than steel.
10. Free of metal contamination.
11. Non-magnetic
12. Electric isolation
13. No adhesive-wear with metal
14. Contact angular is very large with molten and nearly noreaction
All above combination makes Si3N4 to be first choice forhigh-demand bearing ball material and valve ball
Application:
Si3N4 ball can be used in all bearings with special requirement:high speed bearing, high precision bearing; vacuum bearing;high/low temperature bearing, non-magnetic bearing, high precisionball screw; Si3N4 ball can also be used as valve ball and meteringball in chemical pump, high-temperature pump, metering pump. Si3N4ball can also be used in linear slider for high temperature andcorrosion resistance.
Note:
1. Black color as standard, gray color could be supplied uponcustomer requirement
2. Non-standard size and different gauge could be supplied
If you are interested in this product or just want to know moreabout ceramic products, never hesitate to contact us.
We are looking forward to developing business relationships withyou.
Chemical Characteristics
Item | Unit | Si3N4 | ZrO2 | Al2O3 99.5% | SiC | Bearing Steel |
Density | g/cm3 | 3.23 | 6.05 | 3.92 | 3.12 | 7.85 |
Poisson’s Ratio | / | 0.26 | 0.3 | 0.22 | 0.17 | 0.3 |
Hardness | MPa | 1500 | 1200 | 1650 | 2800 | 700 |
Flexural Strength(@R.T) | MPa | 720 | 950 | 310 | 390 | 520 |
Fracture Toughness, K | MPa·m1/2 | 6.2 | 10 | 4.2 | 3.9 | 25 |
Thermal Conductivity(@R.T) | W/m·k | 25 | 2 | 26 | 120 | 40 |
Electrical Resistivity(@R.T) | Ω·mm2/m | >1013 | >1015 | >1016 | >103 | 0.1-1 |
Max.Use temperature | °C | 1050 | 750 | 1750 | 1550 | 300 |
Corrosion Resistance | / | excellent | excellent | good | excellent | poor |
