メインビジュアル

Philosophy & Achievements

NSK was the first company in Japan to manufacture bearings. With technical expertise so much a part of our DNA, we have always poured major efforts into research and development. Each of the technologies in which NSK leads the world, such as noise & vibration control technology - found in the bearings for household electrical appliances - and high speed, high-precision technology - found in machine tool bearings is supported by a strong foundation in tribology, materials engineering, analysis technology, and mechatronics. These are our core technologies, subject to our most advanced research and development.

Changes in the business environment and globalization are advancing swiftly. In order for research and development to rapidly and flexibly respond to such change where it occurs, NSK has expanded regional technology centers while positioning the Corporate Research & Development Center in Japan as the center of our R&D activities. (There are 14 technology centers in total; six bases in Japan, three in Europe, two in the Americas, and three in Asia.)

Milestones for NSK Technology

Since starting production of Japan's first bearings in 1916, NSK has consistently developed leading technologies over the decades. Today it is a leading company with proprietary technology created over a history of more than 90 years, and it has contributed to the development of a wide range of industries in Japan and around the world.

A bearing pioneer in Japan

First in the world :First in the world First in Japan :First in Japan
Year Main technological milestones Product firsts in Japan or the world
1916 First in Japan :First in Japan
Ball bearings are developed
1926 First in Japan :First in Japan
Cylindrical roller bearings for aircraft engines are developed
1929 First in Japan :First in Japan
Cylindrical roller axle bearings for railroad cars developed and produced
1931 Main bearings for aircraft engines are launched in the Japanese market
1932 Tapered roller axle bearings are developed for gasoline vehicles of Japanese National Railways
1945 First in Japan :First in Japan
Main bearings for jet engines (Ne-20) are developed

Contributing to post-war reconstruction

1948 First in Japan :First in Japan
Ultra-large self-aligning roller bearings are developed for thermal power plants (ball mill)
First in Japan :First in Japan
Large four-row tapered roller bearings are developed for roll necks used in steel rolling mills
1949 First in Japan :First in Japan
Miniature ball bearings are developed for use in cameras
1957 Contributed to bearing noise reduction
Established a method of measuring bearing noise
1958 First in Japan :First in Japan
Ball screw is developed
1959 Ball screw type steering is launched
1950s
Late
Export agreements and technical collaboration are carried out with manufacturers outside Japan
Bearing quality and cost rivals those of non-Japanese manufacturers

Supporting high economic growth

1961 Technical Center is established First in Japan :First in Japan
Stainless steel miniature ball bearings are developed for high-speed dental drills
1963 Production of needle bearings is begun First in Japan :First in Japan
Bearings are developed for the Shinkansen bullet train
1964 Production of automatic transmission (AT) parts is begun
1968 Steering column is launched
1973 Bearings (outer diameter 5 meters) for continuously casting steel are manufactured
NSK's first original bearing grease (NS7) is developed
1975 First in the world :First in the world
High-precision bearing is developed for VCRs
1979 Bearings (outer diameter 5 meters) for continuously casting steel are manufactured

Technology advancement and diversification

1980 NSK enters mechatronics market
1982 Linear guides for machine tools developed
1984 First in the world :First in the world
Direct drive and mega-torque motors are developed for factory automation
First in the world :First in the world
Mask exposure device is developed for large TV LCD manufacturing
1985 Tribology technical center is established
Heat treatment (TF) technology is established
First in Japan :First in Japan
Jet engine bearings are developed for civil aircraft
1986 First in the world :First in the world
Electric power steering (EPS) is developed for battery-powered forklifts
1987 Hub-unit bearing (3rd generation) is launched for automotive wheels
1989 Electric power steering (EPS) is launched for automobiles
1990 Highly purified (EP) steel is developed
1991 First in Japan :First in Japan
Integrated single-axle actuator, monocarrier is developed
1996 A bearing analytical program called BRAIN is developed
1997 Bearings are launched for the Shinkansen bullet train (300 km/h)
The ROBUST Series of ultra-high-speed angular contact ball bearings are launched for machine tools

Meeting the challenge of producing world-leading technologies

1999 First in the world :First in the world
Half- toroidal continuously variable transmission (CVT) is developed
2000 Ball bearings are introduced to the market for 40-nm non-repeatable run-out (NRRO) hard disk drives
2002 Fujisawa Technology Center is completed
HMC-B02 Series of high-speed quiet-running ball screws is launched (now BSS Series)
2004 HPS Series of industrial machinery bearings is launched First in the world :First in the world
World's smallest deep groove ball bearing (inner diameter 0.6 mm; outer diameter 2 mm; width 0.8 mm) is developed
2005 A full complement of cylindrical roller bearings for wind turbine gearboxes is developed
2006 Mass production of the V1 Series of highly dust-resistant ball screws is begun
2007 High-performance double-row angular contact ball bearing is developed for industrial pumps
Ball-screw shift actuator is developed for an outboard engine with the world's highest output
2008 Solid lubrication angular contact ball bearings are developed for vacuum robots
Manipulation system is developed for fine processing operations
2009 Low-torque ball bearings are developed for hybrid cars
High-performance standard NSKHPS™ Series angular contact ball bearings for industrial machinery are commercialized
China Technology Center is completed, and a global system of 14 R & D sites is created
First in the world :First in the world
Electro-mechanical integrated column-type electric power steering (EPS) is developed
2010 HMS Series of ball screws is commercialized for high-speed machine tools First in Japan :First in Japan
High-performance flywheel bearings are developed for satellite attitude control
2011 Ultra-long-life ball bearings are developed for automobile transmissions
Energy-saving bearings are developed for high efficiency motors
First in the world :First in the world
High-efficiency toroidal variator module is developed for front-wheel drive vehicles
First in the world :First in the world
Cold-formed hub-unit bearings are developed for tire wheels
First in the world :First in the world
Low-friction ball screws are developed for cooperative regenerative braking systems used in electric and hybrid cars
First in the world :First in the world
Ball screws are developed for seismic dampers used in buildings
2012 Hub-unit bearings with high-reliability seals are developed for tire wheels
High-reliability tapered roller bearings with an anti-creep design are developed for mining dump truck wheels
First in Japan :First in Japan
Axle sensor bearings are developed for passenger rail vehicles
2013 First in the world :First in the world
Lubricating grease is developed entirely from food products
2014 First in the world :First in the world
World's Fastest High-Load Drive Ball Screw
2015 First in the world :First in the world
Super Large Ball Screw with World-Top-Class Load Capacity
First in the world :First in the world
World's Smallest Roller Thrust Needle Bearing for Automotive Automatic Transmission Planetary Gear Mechanisms
2016 First in the world :First in the world
World's Lightest Electric Power Steering System