JTEKT Corporation (Headquarters: Kariya-shi, Aichi Prefecture | President & CEO: Yoshihito Kondo, hereinafter referred to as "JTEKT") has developed grease-lubricated ceramic ball bearings optimized for eAxles in high-performance electric vehicles. This newly developed product incorporates rolling elements (ceramic balls) to prevent electrolytic corrosion, enable high-speed rotation, and extend grease life. In addition, the adoption of a high-speed resin cage, non-contact seals, and optimized grease design enables high-speed rotation of up to 30,000 r/min under grease lubrication.

Based on our mission, "Joint Technology to bring joy to the planet earth and all working people," JTEKT has established the JTEKT Group 2030 Vision: "A solution provider creating the future of mobility society through Monozukuri and Monozukuri equipment."  To realize this transformation, JTEKT is pursuing both the enhancement of existing products with higher added value and challenges in new business domains. Through this product, JTEKT will contribute to improving the performance of electric vehicles and work together with customers to create the future of mobility society.

1.Background of Development In high-performance electric vehicles that require high-output drive motors, there are cases where oil supply to the interior of the eAxle motor is not feasible due to constraints in vehicle design and unit structure. To address this issue, JTEKT has developed a new bearing that adopts grease lubrication instead of oil lubrication, enabling application in such eAxles while also meeting the high-speed rotation requirements of drive motors. 

 2. Product Features and Benefits The developed bearing uses high-carbon bearing steel for the raceways (inner and outer rings), and lightweight, high-rigidity, and electrically insulating ceramic rolling elements. The reduced weight of the rolling elements suppresses centrifugal force and reduces heat generation in high-speed operation. Furthermore, the use of non-contact seals improves grease retention, and a high-rigidity cage designed for high-speed rotation ensures stable performance at high speeds. In addition, combining these features with a long-life synthetic grease that offers excellent oil retention at high temperatures, as well as superior water and corrosion resistance, enables continuous high-temperature operation and extended service life of the drive motor. 

 3. Future As a solution provider creating the future of mobility society, JTEKT will continue to propose products that contribute to high-performance electric vehicles.  In addition to this , JTEKT will leverage its core competencies to propose diverse solutions that contribute not only to mobility but also to a wide range of industries.

(https://www.jtekt.co.jp/)

More about VAFEM:

VAFEM is devoted to providing high quality ball & roller bearings and related transmission parts for domestic and foreign customers in the Vehicle industry and Industries. Our products used in automotive and truck industry mainly include : wheel bearings, wheel bearing kits, wheel hub bearings, alternator bearings, tensioner bearings, clutch bearings, and gear box bearings etc. Our industrial bearings are mainly used in these fields such as Industrial Automation, Home Appliances, Reducers, Agricultural Machines, Precision Machine Spindles, and Transmission Systems etc. As a high-tech company specializing in bearings, we can not only provide stable and trustworthy quality products for OEM customers, but also provide non-standard bearings based on customers’ special requirements. At the same time, we can provide a series of complete product lines and have our own brand VAFEM, it stands for the abbreviation of value added for every movement, which has been recognized by more and more customers and end users.

2026 New Week VAFEM product Recommendation:

Agricultural Wheel Hub Unit:

This type of product provides a complete maintenance-free sealed bearing unit with important advantages for farm applications. These quick-mount bearing units use long-life grease and seals.

Features and advantages of agricultural machinery hub unit:

Extended length, field-tested performance, stronger sealing performance, life-long grease lubrication, basic maintenance-free, simple installation and replacement procedures, special application design, low grease consumption, reduced maintenance and ownership costs, and ease of environmental Influence, improve production efficiency.

https://www.vafem.com/products/Agricultural-Wheel-Hub-Unit/898.html