瑞井精工 List of Products and Services

Rui Seiko Co., Ltd. is a company that mainly manufactures needle rollers, cylindrical rollers, crowning rollers, and produces ultra-small shafts and precision shafts. Precision rollers are processed in full custom order regardless of SUJ2 material (bearing steel). We manufacture according to the shapes, precision, and quantities desired by our customers. In addition, we have over 100 machines including cutting machines, polishing machines, grinding machines, and super finishing machines, allowing us to handle everything from prototyping to mass production with in-house integrated processing. 【Product Line】 ■ Manufacturing of needle rollers, cylindrical rollers, and crowning rollers ■ Production of ultra-small shafts and precision shafts ■ Assembly of shafts & flanges/bushings ■ Design and production of vacuum-formed products *For more details, please download the PDF or feel free to contact us.

• Other machine elements
• Other metal materials