The new technology of spindle bearing developed by Japan Seiko (hereinafter referred to as NSK) can reduce the workload of assembly and running in operation, and improve the operation reliability of spindle. The technology will be displayed in the 17th CIMT 2021 China International Machine Tool Exhibition held in Beijing on April 12, 2021. Combined with market feedback, the company strives to achieve mass production as soon as possible after 2021.