The latest model N700S adopts NTN high performance bearing

Writer: Eric Bearing Limited

 NTN Corporation (hereinafter referred to as NTN) high-performance, high-reliability bearings are used in N700S axles, drive gearboxes and traction motors. The N700S is the latest model of the Tokaido Shinkansen (rolling and rolling stock), which started operations in July this year.

N700S has the world's first battery-based automatic operation system for high-speed railways, and realizes a "standard vehicle", which can flexibly compose a vehicle by making the underfloor equipment compact and lightweight. It is the "best Shinkansen" to achieve the best riding comfort and comfortable space.

The bearings we use in N700S are manufactured using the design and manufacturing technology accumulated by NTN in the development and supply of Shinkansen bearings and through the quality control system. They are necessary components to realize the safety, stability and comfort of the N700S and support its safe and comfortable operation.  NTN 6203LLU bearings online , pls click here :

Products used

Axle Bearing

N700S adopts double-low tapered roller bearings used on the Tokaido Shinkansen, 700 series rolling stock and its successors. It further improves durability and helps reduce life cycle costs. From the early days of N700S development, NTN has participated in the development of axle bearings and also participated in performance evaluation. NTN's proprietary technology also helps to improve reliability.

Driving gearbox bearing

The Shinkansen drive gear unit uses herringbone gears and cylindrical roller bearings for the first time, which increases the transmission torque from the main traction motor to the axle, thereby reducing noise and improving bearing reliability. Using cylindrical roller bearings can also improve the maintainability of the driving gear device. NTN cylindrical roller bearings have high-speed rotation performance, and are specially designed to withstand vibration and shock during operation, and their performance and reliability have been verified by evaluation tests.

Traction motor bearings

Cylindrical roller bearings and deep groove ball bearings have ceramic sprayed insulation coating on the outer ring, which is used in the main traction motor to prevent electrolytic corrosion. NTN's ceramic sprayed insulation coating bearing is a highly reliable product that has been used in the main traction motors of the Shinkansen 300 series and its successors.

Tokaido Shinkansen and NTN products

The Tokaido Shinkansen is a high-speed railway that combines world-class quietness, safety and accuracy. Since the production of the first 0 series started in 1964, NTN has provided high-quality and highly reliable bearings for all its subsequent Shinkansen lines (such as 100, 300, 700, N700 and N700A, N700S), and has been used to accelerate and improve its Comfort has contributed to and supports the safety and stability of its world-class Tokaido Shinkansen.

For NTN, by developing and providing bearings to make an important contribution to the development of environmentally friendly, safe and comfortable transportation services, we position this business as one of the important businesses.

NTN continues to contribute to the development of the railway industry and the realization of a sustainable "NAMERAKA society" by developing high-quality and highly reliable products.