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NTN Showcases Nameraka Tech at Yokohama Expo

NTN Corporation advances EV efficiency and e-Axle reliability with specialized bearings.

NTN Corporation officially announced its participation in the upcoming Automotive Engineering Exposition 2026 Yokohama. The prominent event will take place at the PACIFICO Yokohama venue from May 27 to May 29. The company plans to showcase its specialized bearing technologies under a specific corporate theme. This central exhibition theme focuses heavily on “NTN Nameraka Technology for Future Mobility.” The phrase highlights smooth mechanical motion designed specifically to optimize next-generation vehicle systems.

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The engineering firm aims to address major shifts within the current global automotive market. Rapid adoption of battery electric vehicles drives the demand for specialized mechanical component designs. Consequently, tier-one suppliers must engineer components that significantly reduce friction losses within the drivetrain. The exhibition booth will display multiple advanced solutions tailored to these strict environmental guidelines. Visitors can explore various physical product mockups and interactive setups during the three-day exhibition. These interactive displays will demonstrate how reducing internal friction helps optimize heavy battery systems.

Advanced Hub Bearings Boost Cruising Range

World Class Friction Reduction

The centerpiece of the display features an improved version of the low friction hub bearing series. NTN Corporation engineered a newly developed seal structure that minimizes contact resistance quite effectively with Nameraka. This internal design update achieves a notable sixty-six percent friction reduction compared to conventional bearing assemblies. Furthermore, the specialized seal safeguards the internal rolling elements from muddy water contamination. This dual capability ensures excellent mechanical performance even under incredibly harsh road conditions. Engineers managed to optimize the contact pressure without compromising the sealing integrity of the unit.

Maximizing Electric Vehicle Efficiency

This substantial friction reduction directly influences the overall driving performance of modern battery electric vehicles. According to official company estimates, the hub bearing enhances overall energy efficiency by 0.76%. This optimization directly extends the vehicle cruising distance by approximately 2.2 kilometers per single battery charge. Small efficiency gains remain critical for automotive manufacturers striving to minimize battery weight. Therefore, optimizing wheel hub assemblies provides a cost-effective method to achieve strict range targets. The product effectively helps vehicle manufacturers maximize fleet-wide efficiency parameters without altering battery chemistry.

Resin Molded Bearings Protect e-Axles

Preventing Electrical Pitting

Drivetrain components face unique challenges due to high voltage architectures used in modern electric vehicles. For instance, stray electric currents often flow through the e-Axle assembly during rapid acceleration phases. This electrical discharge causes severe pitting on internal rolling elements and bearing raceways. To prevent this issue, NTN Corporation created its proprietary resin mold insulated bearing line. The manufacturing process involves injection molding an insulating resin layer onto the outer ring surfaces. This durable layer suppresses harmful current paths, thereby preventing severe surface damage completely.

Supporting High Voltage Architectures

The insulated rolling element component delivers dependable insulation performance with a breakdown voltage rating exceeding 1,000V. This capacity ensures complete compatibility with the increasingly popular 800V electric vehicle battery setups. Furthermore, the development team optimized material selection to ensure high durability across diverse temperature fields. This design extension successfully maximizes the operating life of high-speed electric vehicle drive systems. By securing internal components against electrical erosion, the bearing improves overall drivetrain dependability significantly. Global manufacturers can implement these units to ensure long-term e-Axle operation under heavy thermal loads.

Precision Control Through Electrified Ball Screws

Optimizing Linear Drive Systems

The corporate product display highlights advanced ball screw mechanisms designed specifically for electrified vehicle functions. These linear drive devices turn motor rotation into highly precise linear movement very rapidly. The technology proves ideal for modern braking units, including electric hydraulic brakes and electromechanical systems. High responsiveness allows vehicle safety systems to modulate stopping force with superior accuracy and control. The company intends to showcase these core capabilities through operational demonstration models at the booth. These physical models illustrate the high rigidity and low backlash achieved by specialized engineering.

Expanding Future Mobility Applications

The specialized motion control technology supports the ongoing development of autonomous and connected vehicle platforms. Beyond advanced braking assemblies, the manufacturer proposes expanding these screw mechanisms into alternative automotive operations. Potential integrations include active suspension systems, electronic steering gear, and automated driving actuators. Precision components remain vital as braking and steering functions transition to purely electronic control architectures. The exhibit showcases how refined manufacturing methods deliver the required sensitivity for automated safety maneuvers. Thus, the company positions its linear drive lineup as a versatile solution for future chassis development.

Strategic Innovations for Global Electrification

  • The low friction hub bearing series decreases rotational resistance by sixty-six percent.
  • The newly designed hub assembly extends electric vehicle driving range by 2.2 kilometers.
  • Specialized insulation coatings withstand voltages up to 1,000V to protect e-Axle units.
  • High-precision ball screw mechanisms deliver rapid linear actuation for electronic braking modules.
  • The interactive exposition displays allow automotive engineers to verify friction reduction data.

Sources: NTN

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