NSK develops self-lubricating rolling bearings

NSK Europe, the European arm of Japanese bearing producer NSK, has developed deep groove ball bearings that do not require exterior lubrication for use in submersible pumps handling cryogenic gases corresponding to hydrogen and LNG.
NSK has developed particular shaft bearings with a cage made from self-lubricating fluoroplastic for submersible pumps that handle cryogenic gases and liquids.
The stainless-steel bearings with a cage manufactured from self-lubricating fluoroplastic are seeing increasing adoption in submersible pumps as a rising variety of projects promote the use of hydrogen as an vitality source. These projects usually use particular submersible pumps that can reliably pump gaseous and liquid media in steady or intermittent operation at low temperatures down to round -200°C.
In such pumps, the double bearing of the pump shaft is a crucial design component. เกจวัดแรงดันลมคือ is essential, and no lubricant can be utilized aside from the media washing across the bearing. However, this places powerful calls for on the material pairing.
So NSK has developed a sequence of deep groove ball bearings particularly for these distinctive working situations, and a quantity of other key design options present differentiation from conventional pump bearings. For เกจวัดแรงดันน้ำ4หุน , the inner and outer rings are made of a stainless-steel adapted to the particular necessities of rolling bearings.
A steady cage that occupies the complete inside quantity of the bearing supplies steerage for the rolling components (also made of stainless steel), whereas the cage materials, a self-lubricating fluoroplastic, ensures low friction operating of the bearing with out exterior lubrication. In addition, the high-performance fluoroplastic is extremely wear-resistant and presents good low-temperature properties at speeds up to 3600 rpm. The cage has a two-piece design, with the two halves joined by stainless steel rivets.
The NSK bearings are available in varied sizes (shaft diameter 30–100 mm) and are designed to be used in each bigger hydrogen pumping facilities and decentralised applications, corresponding to hydrogen filling stations.

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