Motoharu Niki

Title: **Motoharu Niki: Innovator in Drive Wheel Bearing Technology**

Introduction

Motoharu Niki, based in Osaka, Japan, is a prominent inventor recognized for his contributions to drive wheel bearing technology. With an impressive portfolio of 21 patents, Niki has significantly advanced the engineering field through innovative designs and manufacturing methods.

Latest Patents

Niki's latest invention is a drive wheel bearing device, which features an outer member, an inner member, double-row rolling elements, and a constant velocity joint. The inner member incorporates double-row inner races that correspond to the outer races of the outer member. It also has a first inner member and a second inner member that are inseparably coupled together at a flange-like swaged portion. Notably, the constant velocity joint includes an outer joint member press-fitted to the first inner member's inner periphery, with torque transmission facilitated by engagement through a series of axially extending teeth. This design ensures that the torque transmitting teeth have a controlled tooth profile over their axial length.

In addition, Niki has developed a method for manufacturing this drive wheel bearing device. This method involves creating a swaged portion as a non-hardened region, where variations in the axial direction are strictly limited. Key features include the formation of a flat surface for parts that contact the outer joint member, and serrations on the inner periphery of the first inner member to enhance torque transmission.

Career Highlights

Motoharu Niki's career is marked by his longstanding association with NTN Corporation, a leader in the bearing industry. His innovative designs and methods not only enhance product performance but also contribute to the efficiency and reliability of automotive components.

Collaborations

Throughout his career, Niki has collaborated with esteemed colleagues such as Hisashi Ohtsuki and Eiji Tajima. These partnerships have fostered an environment of creativity and technical expertise, further propelling advancements in drive wheel bearing technologies.

Conclusion

Motoharu Niki is a noteworthy figure in the field of engineering, particularly for his expertise in drive wheel bearings. His continuous innovation and dedication to enhancing technology pave the way for future advancements that will benefit the automotive industry. With his extensive patent portfolio, Niki stands as a testament to the importance of creativity and collaboration in driving technological progress.