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No.1019E 2023Special Edition on Automotive Technologies Development of Grease-lubricated High-speed Bearing

Category TECHNICAL REPORT
Author S. AKIMOTO
Engineering Planning Dept., Industrial and Bearing Business Unit
Abstract High-speed bearing rotation is required to make electric vehicle drive motors more efficient, smaller, and lighter. We have developed a resin cage with a novel shape that offers excellent centrifugal force resistance and lubrication performance, and that dramatically improved the high-speed performance of grease-lubricated bearings, achieving a dmn value of 1.85 million.
Keyword grease-lubricated, high-speed, bearing, cage, electric vehicle
Reference

2) Y. TANIGUCHI, T. UMENO: Development of Deep Groove Ball Bearings for High-speed Rotation, JTEKT ENGINEERING JOURNAL, No. 1015E (2018) 52.
4) Y. OOSHIMA, K. HASEGAWA, T. ONIZUKA: Development of Bearing Dynamics Analysis System, JTEKT ENGINEERING JOURNAL, No. 1017E (2020) 83.
5) JTEKT CORPORATION: High speed ball bearing for EV motors, CAT. NO. BA019EN-0MY.
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1

No.1019E 2023 Special Edition on Automotive Technologies Development of Steer-by-Wire System (J-EPICS) with No Mechanical Link

2

No.1019E 2023 Special Edition on Automotive Technologies Future Prospects: A New Era from Power Assist Steering to Smart Steering

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No.1019E 2023 Special Edition on Automotive Technologies Pairdriver™ Steering Collaborative Control for Automated Driving

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No.1019E 2023 Special Edition on Automotive Technologies Development of Grease-lubricated High-speed Bearing

9

No.1019E 2023 Special Edition on Automotive Technologies Simulation of Meshing Rack and Pinion for Steering Systems

10

No.1013E 2016 Special Edition on Steering and Drive Unit Technologies High Pressure Hydrogen Valve and Regulator

Summary:5,2023-4,2024