The Si₃N₄ Full Ceramic Deep Groove Ball Bearing combines the superior properties of Silicon Nitride (Si₃N₄) ceramic with the versatile deep-groove ball-bearing design, offering exceptional performance across a wide range of high‑demand applications. With both the inner and outer rings, as well as the balls, made from Si₃N₄ ceramic, this bearing delivers outstanding durability, high‑speed capabilities, and reliable operation in harsh environments.
Product Properties
Downloads & Resources
| Resource Type | Link |
|---|---|
| Technical Data Sheet (TDS) | Silicon Nitride Ceramic Material Properties – SU0983 |
Product Details
The Full Ceramic Deep Groove Ball Bearing combines the superior properties of Silicon Nitride (Si₃N₄) ceramic with the versatile deep-groove ball-bearing design, offering exceptional performance across a wide range of high‑demand applications. With both the inner and outer rings, as well as the balls, made from Si₃N₄ ceramic, this bearing delivers outstanding durability, high‑speed capabilities, and reliable operation in harsh environments.
Compared with ZrO₂ full ceramic bearings, Si₃N₄ ceramic bearings feature lighter weight, higher hardness, and superior wear resistance, making them more suitable for high rotational speeds and higher load capacities. In addition, Si₃N₄ offers excellent high-temperature strength, oxidation resistance, and corrosion resistance, enabling stable operation in harsh environments such as high temperature or corrosive gas conditions.
These characteristics make Si₃N₄ full ceramic deep groove ball bearings ideal for high-speed machinery, precision equipment, semiconductor processing, aerospace components, and other demanding industrial applications.
| RING | BALL | CAGE | Max working Temp | Anti-corrosion |
| Si3N4 | Si3N4 | PTFE | 180℃ | Excellent |
The PTFE cage offers low friction, good chemical stability, and reliable performance at both high and low temperatures.
Product Dimensions
| Model | Boundary Dimension | ||||
| Bearing No. |
d | D | B | r(min) |  |
| 623-32 | 3mm | 10mm | 4mm | 0.15mm | |
Key Features
- Lightweight and high-hardness Si₃N₄ ceramic material
- Excellent wear resistance for extended service life
- Suitable for high-speed operation and heavy loads
- High temperature resistance with strong thermal stability
- Electrical insulation and non-magnetic performance
- Corrosion-resistant, suitable for harsh environments
Typical Applications
- Semiconductor equipment
- LCD well equipment
- Ectopiating equipment
- Chemical equipment
- Textile machinery
- Medical machinery
Multiple sizes are available to meet different installation requirements.
Frequently Asked Questions
Compared to steel bearings, Si3N4 ceramic bearings offer:
- High temperature resistance
- Low friction and high speed capability
- Corrosion and chemical resistance
- Non-magnetic and electrical insulation properties
- Longer service life
Common applications include:
- Semiconductor manufacturing equipment
- High-speed motors and spindles
- Vacuum and cleanroom environments
- Aerospace and precision machinery
- Chemical and food processing equipment
Yes, in most cases, they can replace steel bearings, especially where high speed, high temperature, low friction, or corrosion resistance is required.
They require minimal maintenance. In clean or dry applications, they can operate for extended periods without lubrication, making them suitable for long-life, high-speed, and precision applications.
Silicon nitride ceramic bearings typically support moderate radial and axial loads, suitable for high-speed precision applications, but may not replace steel bearings in heavy-load industrial machinery.
Yes. Silicon nitride bearings are vacuum compatible, do not outgas, and are widely used in semiconductor fabrication, aerospace, and high-precision vacuum systems.
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