Silicon Nitride Ceramic Bearing Balls
- MSJ/SN-001
- Silicon Nitride
- Diameter 1.588 - 47.625mm
- 100 pcs per type
- bearing
Ceramic bearing balls made of high performance ceramic silicon nitride (Si3N4) are produced with tight tolerance and smooth surfaces, they have the best performance among all exsiting bearing balls, especially for critical working environments like high speed, high temperature, high corrosion, silicon nitride bearing balls are irreplaceable.
Any inquiry please email info@mascera-tec.com or call +86 13860446139
Product detail
Ceramic bearing balls made of high-performance silicon nitride (Si3N4) ceramic are manufactured with precision and smooth surfaces. They exhibit superior performance compared to other types of bearing balls, particularly in demanding operating conditions such as high speeds, high temperatures, and corrosive environments. Silicon nitride bearing balls are irreplaceable in these critical working environments. They find wide application in industries such as aerospace, military and defense, hybrid bearings, and full ceramic bearings.
Compared to bearing balls made of other materials, silicon nitride bearing balls offer several advantages. They have excellent friction resistance, high rigidity, and are lightweight, making them ideal for high-speed and super-speed bearings. The self-lubricating property of silicon nitride eliminates the need for lubricants, preventing contamination from lubricating mediums. Additionally, silicon nitride ceramic bearing balls exhibit exceptional high-temperature resistance, maintaining their strength even at temperatures up to 800°C. They can operate effectively in environments with strong acids, strong alkalis and seawater.
Advantages of Silicon Nitride Bearing Balls
1. It can be utilized in environments with strong acid, strong alkali, and seawater, exhibiting excellent corrosion resistance.
2. High temperature resistance, the strength and hardness of the silicon nitride ceramic ball are almost unchanged at 800C.
3.It is non-magnetic, insulating, and can be used in a magnetic field without conducting electricity.
4. Light weight, 1/4 lighter than ordinary bearings, and its density is 3.20g/cm3.
5. High rigidity, high strength, its hardness is twice higher than that of bearing steel, and its elastic modulus is about 1/3 higher.
6. High-speed rotation, the weight of the rotating body (ball) is light, and the centrifugation is small when rotating.
7.Its linear expansion coefficient is 3.2×10-6/K, approximately 1/4 that of bearing steel.
8. The self-lubricity of silicon nitride ceramic bearing balls can solve the pollution and inconvenience of adding lubricating medium.
9. Chemical resistance, mechanical strength, destructive toughness, and low thermal conductivity.
Material Data Sheet
| Item | Unit | Technical parameters |
|---|---|---|
| Materail | -- | Silicon Nitride |
| Color | -- | Black |
| Density | g/cm3 | ≥3.20 |
| Vickers Hardness | Mpa | 1500 |
| Modulus of Elasticity | Gpa | 300 |
| Fracture Toughness | Mpa.M1/2 | 6.2 |
| Flexural Strength (@R.T.) | Mpa | >720 |
| Compressive Strength (@R.T.) | Mpa | 2200 |
| Thermal Conductivity (@R.T.) | W/Mk | 15-20 |
Coefficient Of Thermal Expansion (20-1000℃) | 10-6/℃ | 3.0-3.2 |
| Poisson Ratio | -- | 0.26 |
| Max. Working Temperature | ℃ | 1200 |
| Volume Resistivity (@R.T.) | Ω.cm | >1014 |
| Dielectric Constant (1MHz, @R.T.) | -- | 8.2 |
| Dielectric Strength | kv/mm | 16 |
Standard Sizes List
| Inch | MM | Inch | MM | Inch | MM | Inch | MM |
|---|---|---|---|---|---|---|---|
1/16 | 1.588 | 5/16 | 7.938 | 9/16 | 14.288 | 15/16 | 23.812 |
3/32 | 2.381 | 11/32 | 8.731 | 19/32 | 15.081 | 1 | 25.4 |
1/8 | 3.175 | 3/8 | 9.525 | 5/8 | 15.875 | 17/16 | 26.988 |
5/32 | 3.969 | 13/32 | 10.318 | 21/32 | 16.668 | 9/8 | 28.575 |
3/16 | 4.762 | 7/16 | 11.1125 | 11/16 | 17.462 | 19/16 | 30.162 |
7/32 | 5.556 | 29/64 | 11.509 | 23/32 | 18.256 | 5/4 | 31.75 |
15/64 | 5.953 | 15/32 | 11.906 | 3/4 | 19.05 | 21/16 | 33.338 |
1/4 | 6.35 | 31/64 | 12.303 | 25/32 | 19.844 | 11/8 | 34.925 |
17/64 | 6.747 | 1/2 | 12.7 | 13/16 | 20.638 | 23/16 | 36.512 |
9/32 | 7.144 | 17/32 | 13.494 | 7/8 | 22.225 | 3/2 | 38.1 |
Main applications of silicon nitride bearing balls
Silicon nitride ceramic balls can be used in various bearings with performance requirements: high-speed/ultra-high-speed bearings, high-precision bearings, vacuum bearings, high/low temperature bearings, non-magnetic bearings; can also be used as valve balls, measuring balls in chemical pumps, high temperature pumps, metering pumps.
Packing & Shipment
| Package type | carton box with foam protection |
| Payment terms | TT / Western Union / Paypal 50% payment in advanced and 50% before shipment |
| Loading port | Xiamen, China |
| Shipping way | By sea / air / door-to-door express |
Company Introducton
XIAMEN MASCERA TECHNOLOGY CO., LTD. is a China supplier which specialized in custom manufacturing of technical ceramic components. We provide a broad range of high performance ceramic materials including alumina ceramic, zirconia ceramic, silicon nitride ceramic, silicon carbide ceramic, boron nitride ceramic and aluminum nitride ceramic.
We have completed production lines for molding, sintering, high precision machining, quality inspection of technical ceramic components. Our products are in conformity with ISO9001:2015 quality management system and we are capable to deliver ceramic components of fully dense, accurate size and surface finish control, prompt lead time.
Since our foundation, Mascera has committed to providing ceramic components of highest quality and has built faithful partnership with our customers. Currently, our products have been exported to 40 countries and widely applied in industries like machinery, automotive, chemistry, medical, energy, electronic, semiconductor, aerospace, telecommunication etc.
With expertise of material properties and machining technique, Mascera is able to give our customers the most valuable solutions for their specific applications and cooperate from prototype development to mass production. It is our honor that our technical ceramics components are used by some research institutes and high-tech enterprises, and make small contribution for technology innovation.
