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NMB Minebea Mitsumi Inc. is a world-leading integrated precision parts manufacturer. Its predecessor was Nippon Miniature Bearing Co., Ltd., which was established in 1951. It was renamed Minebea Co., Ltd. in 1981 and merged with Mitsumi Electric in 2017 to form the current group. Headquartered in Tokyo, Japan, its business covers core areas such as bearings, motors, sensors, semiconductors, connectors, etc. It has more than 70 years of technology accumulation, and its products are widely used in industries such as automobiles, industrial automation, consumer electronics, and aerospace.
Our products
NMB
Micro ball bearings: precision manufacturing benchmark
Technical advantages:
Micro bearings with an outer diameter of less than 30 mm have the largest market share in the world (60% for those below 22 mm), and are known for their sub-micron processing accuracy.
The materials used are high-carbon chromium bearing steel and ceramic balls, which have excellent corrosion resistance and conductivity.
Vertical production system:
The entire process from bearing steel smelting, parts processing to finished product assembly is autonomous and controllable to ensure quality stability.
Application scenarios:
Consumer electronics (printers, drones), automobiles (motor steering systems), medical equipment (surgical instruments) and aerospace (aircraft engine bearings).
Motor and cooling system: industrial-grade reliability
Product line coverage:
Cooling fan: All-metal axial flow fan is suitable for industrial inverters and energy storage equipment, high temperature resistant (-40℃~70℃), dustproof and waterproof, and UL/CE certified.
Stepper motor: Hybrid stepper motor achieves ±0.002mm precision positioning, and is used in robots, textile machinery, etc.
DC brushless motor: output power 2W~50W, supporting electric power steering systems for new energy vehicles.
Technological innovation:
The motor has a self-developed ball bearing built in, with a life of more than 50,000 hours and a noise level of less than 35dB.
Sensors and semiconductors: Intelligent core components
Sensor technology:
Weighing/pressure sensor: Using sapphire diaphragm and atomic-level bonding technology, the accuracy is 0.01%, which is used in industrial weighing and construction machinery hydraulic management.
Rotary transformer: VR type rotation angle sensor is the core of electric vehicle motor control, directly improving energy efficiency and endurance performance.
Semiconductor products:
Lithium-ion battery protection IC has a global market share of 65%, supporting smart home appliances and new energy vehicle battery management.
Connectors and high-frequency components: Customized solutions
Automotive connectors:
Support electrification and intelligent needs, customized shark fin composite antennas, T-BOX communication modules, adapted to autonomous driving and vehicle networking.
Industrial connectors:
Modular design covers telecommunications and medical equipment, providing waterproof and corrosion-resistant solutions.
Aerospace and high-end industrial components
Aircraft bearings:
Rod end joint bearings account for 50% of the global market, are used in aircraft wings and landing gear, and meet European and American aviation certification standards.
Precision mechanical components:
Pivot components integrating bearings and drive shafts are used in hard disk drives (HDDs) to achieve high-speed and stable operation.