NSK develops self-lubricating rolling bearings

NSK Europe, the European arm of Japanese bearing producer NSK, has developed deep groove ball bearings that don’t require external lubrication to be used in submersible pumps handling cryogenic gases similar to hydrogen and LNG.
NSK has developed special shaft bearings with a cage created from self-lubricating fluoroplastic for submersible pumps that handle cryogenic gases and liquids.
The stainless-steel bearings with a cage made of self-lubricating fluoroplastic are seeing rising adoption in submersible pumps as a rising number of tasks promote the usage of hydrogen as an energy source. These initiatives typically use particular submersible pumps that can reliably pump gaseous and liquid media in continuous or intermittent operation at low temperatures right down to around -200°C.
In such pumps, the double bearing of the pump shaft is a crucial design component. Corrosion resistance is crucial, and no lubricant can be used aside from the media washing around the bearing. However, this places robust demands on the material pairing.
So pressure gauge 2.5 นิ้ว has developed a collection of deep groove ball bearings specifically for these distinctive working situations, and various other key design options provide differentiation from conventional pump bearings. For instance, the inside and outer rings are manufactured from a stainless steel tailored to the special necessities of rolling bearings.
A stable cage that occupies the complete inside volume of the bearing supplies guidance for the rolling elements (also manufactured from stainless steel), while the cage material, a self-lubricating fluoroplastic, ensures low friction running of the bearing without external lubrication. In addition, the high-performance fluoroplastic is extraordinarily wear-resistant and presents good low-temperature properties at speeds up to 3600 rpm. The cage has a two-piece design, with the 2 halves joined by chrome steel rivets.
pressure gauge ออก หลัง are available in numerous sizes (shaft diameter 30–100 mm) and are designed for use in both bigger hydrogen pumping amenities and decentralised purposes, similar to hydrogen filling stations.

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