Nippon Thompson - IKO NIPPON THOMPSON CO., LTD. IKO is the brand name of Nippon Thompson Co., Ltd. Nippon Thompson developed needle roller bearings first time in Japan using its own technology, and used that advanced technology as a foundation for entering into the field of linear motion rolling guides (Linear Way Series and Precision Positioning Series). We ROLLWELL BEARING are one of the most revered authorized importers of wide range of "IKO" JAPAN Needle Roller Bearings