株式会社冨士精密 List of Products and Services

The "FINE U-NUT" is a locking nut for bearings that eliminates the need for traditional keyway machining of shafts and the installation of toothed washers. It allows for arbitrary and appropriate positioning, and torque management is also easy. It generates "power" in various industrial machines and improves the rotational balance of bearings. Additionally, it has achieved a reduction in rotational loss of equipment and a decrease in power consumption. 【Features】 ■ Reusability: Can be reused ■ Easy fastening: No skilled techniques required ■ Labor-saving simplification: No keyway machining of shafts needed ■ Balance: Improved rotational balance of shafts and bearings ■ Lightweight: Can use thinner hollow shafts than before ■ Cost reduction: No need for traditional machining, parts, or techniques *For more details, please refer to the PDF document or feel free to contact us. *CAD data is also available for download.

The "FINE U-NUT" is a bearing lock nut that eliminates the need for traditional keyway machining of shafts and the installation of toothed washers. It allows for arbitrary and appropriate positioning, making torque management easy. It generates "power" in various industrial machines and improves the rotational balance of bearings. Additionally, it has achieved a reduction in rotational loss of equipment and a decrease in power consumption. 【Features】 ■ Reusability: Can be reused ■ Easy fastening: No skilled techniques required ■ Labor-saving simplification: No need for keyway machining of shafts, simplifying installation work ■ Balance: Improved rotational balance of shafts and bearings ■ Lightweight: Can use thinner hollow shafts than before ■ Cost reduction: Eliminates the need for traditional machining, parts, and techniques *For more details, please refer to the PDF materials or feel free to contact us. *CAD data is also available for download.

The "Cap U-Nut" is a locking nut that covers the tip of the bolt with a cap, enhancing its appearance. It improves safety during contact with the bolt and protects the contacted objects, addressing PL law measures. 【Features】 ■ Covers the tip of the bolt with a cap ■ Enhances appearance ■ Improves safety during contact with the bolt ■ Protects contacted objects ■ Addresses PL law measures *For more details, please refer to the PDF document or feel free to contact us.

The "Small U-NUT" is a nut with a width across the flats that is one rank smaller than a standard nut for the same nominal diameter. This product allows for weight reduction of the nut. Additionally, it helps to minimize the working space. Furthermore, it enables the use of shared tools, contributing to increased work efficiency. 【Features】 ■ Width across the flats is one rank smaller than a standard nut for the same nominal diameter ■ Weight reduction of the nut ■ Minimization of working space ■ Shared tools can be used ■ Increased work efficiency *For more details, please refer to the PDF materials or feel free to contact us.

"BLU-NUT" is a research and development product that incorporates the functionality of a U-NUT into a blind nut. Based on feedback from everyone, we have integrated Fujiseimitsu Co., Ltd.'s U-NUT technology into the blind nut. We believe that this "BLU-NUT" will lead to further improvements in our customers' work efficiency and cost management. 【Features】 - Reduces the time and effort required for complicated pre-process tasks - Simple operation that can be tightened with a riveter or nut driver - Contributes to total cost reduction - Reduces the number of parts, making management easier - Equipped with measures to prevent nut rotation and bolt seizure For more details, please contact us or download the catalog.