Ordinary bearings are improper to use in high temperature conditions, from –150 to +350°C. Also, they are sensible to sudden changes of the temperature. There were invented high temperature bearings. They can be used in baking trolleys, rotating oven supports, in bakery equipment and freezers. 

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Spacea™ Series Ball Bearings
NSK SPACEA™ series ball bearings are optimal for applications in operating environments that are too severe for standard bearings. The SPACEA™ series have a wide array of product variation applicable to special environments such as vacuum, clean, corrosive, high-temperature, dust or water contaminated, and non-magnetic requirements. In demanding operating environments, these bearings will meet your high quality and high performance standards. The SPACEA™ range utilises advanced materials, lubricants and surface treatment technologies for special operating conditions.Deep groove ball bearings are the current focus of the rolling element SPACEA™ series.

These are designed for use in a wide variety of special environments including:
 

• Clean rooms for the manufacture of semiconductors
• Aqueous environments for food processing
• Environments where corrosive substances are present
• Vacuum conditions where conventional methods of lubrication are unsuitable
• High temperature applications up to +400 °C.
 

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