linear actuator miniature linear guide linear motion components LINEAR ACTUATOR MINIATURE A world leader in linear actuator miniature, NSK has developed a vast range of bearing closures, including metallic shields and polymeric seals. NSK closures provide years of trouble-free service in the toughest environments. Tightly controlled clearances and patented labyrinth designs not only deliver high level sealing performance, but also minimum torque and power loss. NSK offers several different seal / shield designs and materials, each developed to meet specific needs of your application. As an example, we offer seals with varying degrees of contamination resistance and drag characteristics, including our full contact DU seals, light contact DW seals and non-contact V seals. So, whether it is a photocopier fuser roll demanding contamination resistance at temperatures in excess of 200°F or an electric motor that requires sealing capability without compromising energy efficiency, NSK has the right closure for your application.