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National Precision Bearing

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Newly Arrived at National Precision Bearing - Expanded Inventory of Stainless Steel Bearings

National Precision Bearing is excited to announce our expanded inventory in stainless steel bearings for corrosive and food handling environments. NPB's new stock offering now includes inch and metric sizes ranging from 1mm bore to 50mm bore. We have added several product pages to our website that detail the additional sizes and configurations that are now standard inventory at National. The website now includes an extensive interchange of stainless steel bearing part numbers from all major manufacturers.

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Stainless Steel Bearings offer one clear advantage over standard steel bearings - resistance to moisture and other corrosive environments.

Stainless steel bearings have similar mechanical properties to chrome steel bearings with the advantage of being resistant to corrosion. There are several types of stainless steel ball bearings, ranging from 440C type which offers the greatest hardness and surface finish, to 302 which has extreme toughness and corrosion resistance. Additional stainless material options include 17-4PH, 304, 316, 316L, 416, 430; each option offers a specialized chemical makeup, making it suitable for different applications.

Many bearing failures today are caused by corrosion and for specific applications stainless steel radial ball bearings serve as the best solution. The rust preventative properties that stainless steel offers are ideal for chemical environments, wash down applications and where food is present. Stainless Steel ball bearings are also used when there is a need for high efficiency, low torque, long bearing life, and a low noise level. Common applications include;

  • Food and beverage industry
  • Chemical equipment
  • Medical equipment
  • Optical instruments
  • Printing machines
  • Nuclear technology
  • Engines and pumps
  • Paper mills
  • Off-shore
  • Marine industry

NPB can supply sealed, shielded or open bearings and can lubricate for a wide range of applications. NPB operates a Class 1000 clean room and is a certified relubrication facility for NHBB, NMB, and RBC bearings. The clean room is authorized to clean and re-lubricate aerospace, miniature, and industrial bearings ranging from 1/8 inch to 30 inch O.D. sizes. NPB currently stocks over a hundred different oils and greases ranging from the common instrument oil, Windsor L-245X, to the more exotic Braycote and Krytox greases. Based on your requirements, we can recommend a grease or oil for your specific application.



Contact NPB today for additional information regarding your bearing needs.

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