NSK Ltd.

Company Profile




Nissei Bldg., 1-6-3 Ohsaki, Shinagawa-Ku, Tokyo, 141-8560, Japan

Business Overview

-The Company operates in two business segments, one of which is the Automotive Business that generated 41% of sales as of the fiscal year that ended in March 2022.

  • Industrial Equipment Business: Manufacture and sale of general industrial bearing, ball screws, and linear guides.
  • Automotive Business: Manufacture and sale of bearings, steering system parts, and automatic transmission parts to OEM and automotive suppliers.

-Company boasts number-one market share of bearings in Japan and number-three share globally, as of March 31, 2022 according to the Company’s own market research.


-From April 2022, moved to the Prime Market of the Tokyo Stock Exchange (As of Mar. 31, 2023)
Name or Company Name Investment Ratio (%)
The Master Trust Bank of Japan, Ltd. (Trust account) 14.98
The Custody Bank of Japan, Ltd. (Trust Account) 6.27
Meiji Yasuda Life Insurance Company 5.29
Fukoku Mutual Life Insurance Co. 4.29
Nippon Life Insurance Co. 4.22
Mizuho Bank, Ltd. 3.49
The Master Trust Bank of Japan, Ltd. (Toyota Motor account) 2.05
Toyota Motor Corporation 1.91
Customer holding company 1.90
NSK Employee Stock Ownership Plan 1.66
Total 46.12


Electrification Products
-Seamless 2-Speed e-Axle Concept
-High Efficiency Rear Wheel Steering Actuator
-Ball Screw Actuator for Electric-Hydraulic Brakes
-Steer-by-Wire Force Feedback Actuator (FFA) & Steer-by-Wire Road Wheel Actuator (RWA)
-Thrust Needle Bearing for Electrical Corrosion Resistan
-Ultra High Speed Ball Bearings for EV Motors (Generation3)
-Low Friction Hub Unit Bearings for EV
-Tapered Roller Bearings for Lean Lubrication Conditions
-High Pressure Resistance Seal Performance Bearing for Motor
-Anti fretting grease for Automotive bearings
-Next Generation High Energy Wet-Friction Material

Chassis products
Electric power steerings
-Force feedback actuator and road wheel actuator for steer-by-wire
-Column type electric power steerings
-Pinion type electric power steerings

Steering columns & Intermediate shafts
-Electrical tilt and telescopic steerings
-Upper pivot tilt and telescopic steering columns
-Upper pivot tilt steering columns
-Lower pivot tilt and telescopic steering columns
-Lower pivot tilt steering columns
-Tilt and Telescopic steering columns for trucks
-Slidable intermediate shafts
-Collapsible intermediate shafts
-Noise isolating steering joints
-Doubles cardan constant velocity joints
-Steering joints

Hub unit bearings
-Low friction hub unit bearings for EVs
-Hub unit bearings with annular passive sensor
-Hub unit bearings with integral sensor located between the rows
-Hub unit bearings with multipole magnetic encoders
-Hub unit bearings with end-cap type active sensors
-Double-row angular contact ball bearings
-Double-row tapered roller bearings
-Double-row angular contact ball bearings with outer mounting flange; HUBII for outer ring rotation type
-Double-row angular contact ball bearings with outer mounting flange; HUBII for inner ring rotation type
-Double-row tapered roller bearings with outer mounting flange; HUBII for inner ring rotation type
-Double-row angular contact ball bearings with inner and outer mounting flange; HUBIII for driven wheels
-Double-row angular contact ball bearings with inner and outer mounting flange; HUBIII for non-driven wheels
-Double-row angular contact ball bearings with inner and outer mounting flange; HUBIII for minivehicles

Brake System
-Ball Screw Actuator for Electric-Hydraulic Brakes

Engine parts
-Roller followers for engine tappets
-Water pump bearings
-Bearings for tensioners & idlers
-Pressed rocker arm assemblies
-Drawn-Cup needle roller bearings for camshaft journals
-BWFH Type water pump bearings
-Ball bearings for turbochargers
-Plastic pulleys for accessories & timing belts
-Auto-tensioners for timing belts

Electrical Accessories
Bearings for alternators
-Clutch pulley units for alternators
-Bearings for alternators

Bearings for compressors
-Thin cross-section double row angular contact ball bearings for magnetic clutches
-Thrust needle roller bearings with integrated races for compressors
-Drawn-cup needle roller bearings for compressors

Bearings for motor
-Needle roller bearings for ABS motors
-Bearings for cooling fan motors
-Bearings for electric power steering motors
-Bearings for throttle motors
-Bearings for EGR motors

Drivetrain products
Automatic transmissions
-Next generation high energy wet-friction material
-Tapered roller bearings for lean lubrication conditions
-Friction plates/separator plates
-One-way clutches; sprag type
-Flex bands/maji bands
-Friction clutch assemblies
-Hydraulic lockup clutches
-One-way clutches; roller type
-Thrust needle roller bearings for powertrains
-Thrust needle roller bearings for torque converters
-Cage & roller assemblies and shaft for planetary gears
-Drawn-cup needle roller bearings for powertrains
-Drawn-cup needle roller bearings for shift linkages
-Linear bearings for solenoid valves
-Long life double row angular contact ball bearings
-Long life double row tapered roller bearings
-Long life tapered roller bearings with outer mounting flanges
-Long life double row bearing with outer ring splines
-Cylindrical roller bearings with PA46 plastic cages
-Thin-walled tapered roller bearings

Manual transmissions
-Long life sealed-clean ball bearings
-High thrust capacity cylindrical roller bearings
-Quick-assembly tapered (QTA) roller bearings
-Drawn-cup linear ball bearings
-Needle roller & plastic cage radial assemblies
-Split needle roller & plastic cage radial assemblies
-Light weight and low costs TKZ type clutch release bearings
-Synchronizer steel cones

Half toroidal CVT powertros units

Differential gears and propeller shafts
-TF (Though) series tapered roller bearings
-Low torque tapered roller bearings
-Long life cylindrical roller bearings for pinion shaft pilot support
-Long life needle roller bearings for universal joints
-Long life center support bearings
-Long life coupling support bearings for 4WD vehicles


Nov, 1916 Transferred all business of Nippon Seiko & Co., Ltd. (established in 1914) and established Nippon Seiko Ltd. in Shinagawa Ward, Tokyo with capital of 350 thousand yen.
Mar. 1934 Established steel ball plant in Ohta Ward, Tokyo. In March of the following year, built a ball bearing plant attached to the steel ball plant and named it Tamagawa Plant.
Nov. 1937 Established Fujisawa Plant in Fujisawa City, Kanagawa Prefecture and transferred steel ball facilities there. Built an adjacent stamping plant.
Nov. 1953 Established Nishi Nippon Seiko Ltd. in Ohtsu City, Shiga Prefecture.
June 1960 Established Kita Nippon Seiko Ltd. in Maebashi City, Gunma Prefecture. Started operations as a specialized plant for automotive steering.
Jan. 1963 Established NSK Trinton Ltd. in Takasaki City, Gunma Prefecture, jointly with England Trinton Ltd. and Tokyo Bearing Ltd.
Aug. 1964 Established NSK BorgWarner Inc. jointly with US BorgWarner Inc.
May 1966 Took over Nishi Nippon Seiko Ltd. and made it Ohtsu Plant.
Nov. 1967 Took over Kita Nippon Seiko Ltd. and made it Maebashi Plant.
Mar. 1969 Spun off Fujisawa Plant's steel ball plant, and established Shin Nippon Steel Ball Ltd., jointly with Tentsuji Steel Ball Seisaku-Sho Ltd.
July 1999 Shut down the Tamagawa Plant.
Aug. 1999 Spun off the logistics division as a separate company, and established NSK Logistics Co., Ltd. in Shinagawa Ward, Tokyo.
Feb. 2000 In order to strengthen steering business, made Nastec Ltd. (USA) into a 100% subsidiary of NSK Americas Ltd. and Nastec Europe Ltd. (England) a 100% subsidiary of NSK-RHP Europe Ltd.
Feb. 2001 Incorporated NSK steering systems at Shinagawa, Tokyo to spin off electric power steering business into a separate company.
Apr. 2001 Received an award from the Machinery Society of Japan for a half-toroidal CVT used in automobiles.
July 2001 Spun off Fukushima plant into a separate company and incorporated NSK Fukushima at Shinagawa Tokyo.
Mar. 2002 Established NSK Bearing Manufacturing (Thailand) in Thailand.
Oct. 2002 Spun off the precision machinery business and established it as NSK Precision Co., Ltd in Shinagawa-ku, Tokyo.
July 2003 Made NSK Torrington as its subsidiary and change the name to NSK Needle Bearing.
May 2004 Established Changshu NSK Needle Bearing Co. Ltd. in Changshu prov., China.
Mar. 2006 Acquired a 100% ownership in Amatsuji Steel Ball Mfg. Co., Ltd.
July 2007 Acquired a 100% ownership in Suzhou NSK Bearings Co., Ltd., a manufacturer of taper roller bearings.
Jan. 2008 Established an independent R&D company.
Jan. 2008 Established NSK Yagi Precision (Zhangjiagang) Co., Ltd. in Jiangsu, China, a forged parts manufacturer.
Feb. 2008 Started production at NSK-ABC Bearings Ltd. in India, an automotive bearing manufacturing company jointly established with ABC Bearings Limited, which is a partner company based in India.
Mar. 2008 Established NSK-Wanda Electric Power Assisted Steering Systems Co., Ltd., in Hangzhou in China.
May 2008 Started production of electric power steering at a plant of Rane NSK Steering Systems Ltd., a joint venture with Rane, in Haryana,in India.
Oct. 2009 Completed constructing a new building ofat NSK (China) Research & Development Co., Ltd. in Kunshan Jiangsu, China.
NSK (China) Investment Co., Ltd. moved from Shanghai to NSK (China) Research & Development Co. Ltd.
July 2010 Absorbed and merged its wholly owned subsidiary, NSK Fukushima Co., Ltd.
Aug. 2010 Established Shenyang NSK Co., Ltd. in Shenyan, Liaoning Province, China as a manufacturing company for producing industrial-equipment bearings.
Sep. 2010 Established ADTeck in Shingawa Ward, Tokyo, together with Toshiba and an auto steering systems development company.
Nov. 2010 Established Rane NSK Steering Systems Ltd. in India together with Rane, which is based in India, becoming the majority stakeholder.
Jul. 2011 Established NSK Hefei Co., Ltd. in Hefei, Anhui Province, China, a production company to manufacture bearings for automobiles and industrial machinery.
Jul. 2012 Merged and absorbed NSK Precision into its own NSK operations.
Mar. 2013 Acquired stock shares in Ningbo MOS Group, a bearing manufacturer in Ningbo, Zhejiang Province, China; turning it into a subsidiary based on the equity-method of accounting.
Apr. 2013 Established NSK Bearing Manufacturing Mexico S.A. de C.V., which is a automotive bearing plant, in Silao City in Guanajuato.
Jun. 2015 Transferred the stock shares held in NSK Technology Co., Ltd. to V-Technology based in Yokohama, Kanagawa Prefecture, Japan.
Jul. 2016 Acquired and absorbed the operations of NSK Needle Bearing Co., Ltd.
Feb. 2017 Established the Cheonan Plant in Cheonan, South Korea
Dec. 2018 Completed construction of the third production-plant building at the Haruna Plant in Takasaki, Gunma Prefecture.
Mar. 2021 Completed the acquisition of Brüel & Kjær Vibro, a business specializing in condition monitoring systems, from UK-based company Spectris.

Supplemental Information 1