Improved reliability even in extreme environmentsResearch and design innovation continue apace at NSK, where nearly €100 million are invested each year in developing new technologies, lubricants, materials and surface engineering. For the most common form of rolling bearings, deep groove ball bearings, this has meant improved reliability even in extreme environments due to new seal technology, improved lubrication and greater operational efficiency.
All of these improvements have been influenced by hands-on experience with customers, providing a greater understanding of their specific requirements. NSK produces more than 150,000 deep groove ball bearing types available for use in a huge variety of applications. Starting with the raw materials, NSK has worked closely with steel manufacturers to produce Z-Steel, which has such low levels of impurities that the bearing life can be increased by up to 80% over a bearing made of ordinary steel.
In addition, a new patented labyrinth design ensures the best levels of protection while minimising power loss. With several seal and shield combinations available, the right solution can be found for every application, even those involving high temperatures or corrosive atmospheres.
Meanwhile, the area of advanced lubrication technology continues to be developed. With a range of high performance, environmentally-friendly lubricants, NSK has produced a solution for a variety of applications, including clean room greases and low torque lubricants to minimise power losses as well as its NSA lubricant, which was specifically developed for use in air conditioner bearings to avoid vibration damage.
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