As manufacturing environments grow increasingly demanding—particularly in the fields of semiconductors, aerospace, and vacuum deposition—standard bearings often fall short due to lubricant failure or material degradation. At CHG, our high-temperature bearings are specially engineered to ensure long-term stability and performance in high-temperature and ultra-high vacuum conditions.
Engineered for the Harshest Environments
CHG high-temperature bearings utilize sintered alloy spacer joints made from porous metal materials, designed to store and release solid lubricants during operation. This self-lubricating structure makes them ideal for applications where conventional lubrication is impossible or unreliable.
Key Performance Highlights:
Heat resistance up to 350°C
Vacuum resistance down to 10⁻⁶ Pa
8× longer service life compared to conventional bearings
Oil-free, self-lubricating design for maintenance-free operation
Advanced Structure & Materials
Component | Material Description |
| Inner & Outer Rings | Martensitic stainless steel, heat and corrosion resistant |
| Balls | Martensitic stainless steel and MoS₂ coating |
| Cage / Spacer | Lubricating spacer joints (sintered alloy) |
| Lubricant | Solid lubricant (MoS₂) |
| Shields | Austenitic stainless steel, dust-proof and corrosion resistant |
The porous sintered alloy spacer joints act as a lubricant reservoir, gradually releasing solid lubricant during operation. This guarantees long-lasting, consistent performance under the most demanding environmental conditions.
Application Scenarios
Our high-temperature bearings are widely adopted in critical high-tech manufacturing systems, including:
Ion Implantation Systems：Designed for semiconductor production, ion implantation machines require continuous high-temperature operation in ultra-high vacuum. CHG high-temperature bearings eliminate the risk of lubricant vaporization and offer long-term operational stability.
Sputtering Equipment：In thin-film deposition processes such as magnetron sputtering, bearings must withstand ion bombardment and thermal fluctuations. Our MoS₂-based lubrication system offers outstanding heat resistance and reduces downtime due to maintenance.
Vacuum Vapor Deposition (VVD) Equipment：These systems demand ultra-clean and highly stable conditions. CHG bearings avoid lubricant degradation and particle release, making them ideal for ensuring high purity and film uniformity in deposition processes
Why Choose High-Temperature Bearings?
CHG high-temperature bearings offer a superior alternative to traditional oil-lubricated bearings, especially in clean, high-vacuum, or thermally extreme environments. Our solutions are:
Reliable in harsh vacuum conditions
Long-lasting with minimal maintenance
Engineered for critical industries such as semiconductor, aerospace, and advanced materials
If you are looking for high-quality high-temperature bearings, we will be your trusted choice. Welcome to contact us at info@chg-bearing.com.
