Technical Journal
No.35
June 2024
Technical Papers
- Reduction of Cage Noise in Fan Motor Bearings
- Condition Monitoring Solution
- Technologies for Resisting Electrical Erosion in EVs
- Efforts for Higher Reliability and Recent Technical Trends in Hub Unit Bearings
- Performance Study of Rattle Noise in EPS Reduction Gears Using Multibody Dynamics
- Efficient Development for EPS Controls Using Simulation Technology
- Lubrication Condition Monitoring of Practical Ball Bearings by Electrical Impedance Method
- Assistive Robot to Aid Healthcare Staff in Patient Transport
New Products
- J-Type ROBUSTDYNA™ Angular Contact Ball Bearings for Machine Tool Spindles
- ROBUSTGRD™ Improved Seizure Resistance Grease
- NSK Ball Screw for High-Load Drives: Long-Life Specification
- Ball Screw Unit for Electric Hydraulic Brake Systems
- Integrated Bearing and Resolver
- Deep Groove Ball Bearing with Enhanced Overhang Strength for EVs
- Compact and Lightweight Redundant Column-Type EPS
No.34
June 2023
Technical Papers
- Development of Bearings with Insulating Coating to Resist Electrical Corrosion in HEV/EV Units
- How Hub Unit Bearings Contribute to Carbon Neutrality
- Development of Magnetostrictive Torque Sensor
- Evaluation of Steering Feel in the Off-Center Range Using Physiological Characteristics
- Trends in Bearings for Steelmaking Equipment
- QuickStopBearing? for Dental Air Turbines
- Evaluation of Lubrication Performance in Ball Screws and Linear Guides by the Electrical Impedance Method
- NSK VIRTUAL EXPO
- Study on Simple Vibration Prediction Method for Permanent Magnet Synchronous Motors and Applications
- Establishment of an Integrated Automated Embryonic Manipulation System for Producing Genetically Modified Mice
New Products
- Ball Bearings with Labyrinth Seal for Transmission Applications
- BOC Bearings with Resistance to Wear from Creep
- Development of Gen 4 High-Speed Ball Bearings for HEVs/EVs
- Large-Size T-HUB 1 Bearings for Trucks
- Next-Generation Long-Life Planetary Shafts (SHJ7)
- Drawn Cup Needle Roller Bearings with Large Diameter for Electric/Hybrid Vehicles
- Column EPS with Steering Wheel Angle Detection
- NSK Verify (Bearing Information Acquisition Service Using 2D Barcode)
- Bioplastic Cage for Deep Groove Ball Bearings
- High Load Capacity Angular Contact Ball Bearings with Pressed Steel Cage (BEAW)
Technical Papers
- Ball Screw Technologies to Control Machine Tool Quadrant Glitches
- Technical Trends in Bearings for Papermaking Machine
- Development of High-Speed Ball Bearings for Hybrid Electric Vehicles (HEVs) and Electric Vehicles (EVs)
- Hub Unit Bearing Design Using Digital Twins
- Introduction of Analysis Method Automation Technology for Efficient Design
- Estimation of Noise Radiation Including Airborne Noise Using the In-situ Blocked Force Approach(Third Report, Experimental Verification of the Estimation Method by Application to Rattle Noise From an Electric Power Steering System)
- Enhancement of Weldline Strength by Applying a Reservoir to the Plastic Cage of a Rolling Bearing
- SuperLimbs for Sit-to-Stand Support and Fall Prevention
New Products
- ROBUSTDYNA™ High Load Capacity Ultra-High-Speed Angular Contact Ball Bearings
- Large Spherical Roller Bearings with Smearing Preventative (NSK DLC Coating)
- Low-Maintenance High-Reliability Gearbox Bearings for Railways
- NSK Linear Guides™ Long-Life Series: DH/DS Models
- Wireless Vibration Diagnostic Device Model D-VibA10
- High Efficiency Tapered Roller Bearings for Powertrains
- Pressed Angular Contact Ball Bearings for Electric and Hybrid Vehicles
- Thrust Needle Roller Bearings with Electrical Corrosion Resistance
No.32
June 2021
Technical Papers
- Development of Tapered Roller Bearings for Electric/Hybrid Vehicles
- Demonstration of Two-Speed Seamless Shifting for EV Using Magnetostrictive Torque Sensor
- Developments in Steering Performance for Automotive Steering Systems
- Development of Bearings for Industrial Machinery Motors
- High Load Endurance Test Unit for Electric Injection Molding Machine Ball Screws
- Mobile Extendable Robot Arm (MERA)
- Development of an Automated Single-Cell Seeding Device for Biopharmaceuticals
- Quantitative Evaluation of Effects on Dent-Initiated Flaking of Rolling Bearings(Part 1: Evaluation of Dent-Density ρd)
- Quantitative Evaluation of Effects on Dent-Initiated Flaking on Rolling Bearings(Part 2: Evaluation of Factors Influencing Dent-Density ρd)
New Products
- Hub Unit Bearing Sealed by a Plastic Sensor Cap
- Ball Screw Units for Electric Hydraulic Brake Systems
- High Safety Redundant Column EPS
- Thin-Section Ball Bearings for Strain Wave Gearings
- Sealed-Clean Four-Row Tapered Roller Bearing with Long-Life, Water-Resistant Grease
- High Durability Precision Ball Screw
No.31
August 2020
Technical Papers
- Development of NSK LCube II™ Tapered Roller Bearings for Electric-Hybrid Vehicles
- Technologies of NV Measurement and Analysis for Steering Systems
- Development of Long Life Ball Screw using Material with High Retained Austenite Amount γR for High-Load Drive
- Improved Reliability of Roller Guides for Machine Tools
- Effect of Small Defect on the Flaking Strength of Rolling Bearings (Part 1: FEM analyses of stress intensity factor KII under rolling contact)
- Effect of Small Defect on the Flaking Strength of Rolling Bearings (Part 2: Evaluation of the flaking strength of rolling bearing having a small drilled hole based on the stress intensity factor)
- X-Ray CT Imaging of Grease Behavior in Ball Bearing and Numerical Validation of Multi-Phase Flows Simulation
- Rolling Bearing Diagnosis Based on Deep Learning Enhanced by Various Dataset Training
New Products
- Long Life Material for Local Procurement (SHJ7)
- High-Performance Tapered Roller Hub Unit Bearings for Automobiles
- Low-Noise Thrust Needle Roller Bearing
- High-Performance Low-Friction Seal for Single-Row Deep Groove Ball Bearings
- Lightweight High-Performance Intermediate Shaft
- Touchdown Bearings for the Superconducting Flywheel Power Storage System
- NSK K1-L Lubrication Unit
No.30
June 2019
Technical Papers
- Approach of Condition Monitoring in Industrial Machinery
- Technical Trend of Industrial Machinery Bearings
- Technical Trend of Wind Turbine Bearings
- The Technical Trend of Machine Tool Components
- Technical Trends of Railway Products
- ISO 13482 certificated and practical application of Guidance Robot LIGHBOT
- Development of Omnidirectional Mobile Electric Wheels
- Analysis Prediction Technique of Flaking Expansion in Roller Bearings for Wind turbines.
- Simultaneous Measurement of Oil Film Thickness and Breakdown Ratio in EHD Contacts-Verification of Electrical Impedance Method
New Products
No.29
June 2018
Technical Papers
- Transmission-Equipped Wheel Hub Motor Consisting of Two Electric Motors and the Performance Evaluation
- Estimation of Traction Curves under Practical Operating Conditions
- Improving the Efficiency of Derivative Development through Systematic Restructuring
- Weight Reduction of Column-Type EPS through Gearbox Thinning
- Recent Technical Trends in Hub Unit Bearings
- Low-Friction Technology for Tapered Roller Bearings
- CFD Analysis of Tapered Roller Bearings and Ball Bearings for Reducing Agitation Torque
- Relationship between Supplied Oil Flow Rates and Oil Film Thicknesses under Starved Elastohydrodynamic Lubrication
New Products
No.28
June 2017
Technical Papers
- Advanced Technology for Lubricant Film Formation by Grease and Application to Improve Bearing Wear Resistance under Severe Conditions
- White Structure Flaking in Rolling Bearings for Wind Turbine Gearboxes
- Development of New-Type Oxide Ceramic Ball for Bearings
- Correlations Between the Porosity and Friction Performance of Wet Friction Materials
- Development of a High-Power Two-Roller Traction Tester and Traction Curve Measurement
- New Technologies for Bearings in Electric Vehicle and Hybrid Electric Vehicle Powertrains
- NSK EPS Control Technology
- Development of High-Speed
- Development of a High-Precision Vertical-Axis Table
New Products
- Ball Bearings with Excellent Sealing Performance for Fan Clutches
- New Ball Bearing with a Retainer Plate for Automobile Transmissions
- The World's Lightest Electric Power Steering System
- spaceaCRYO: New High-Performance Ceramic Ball Bearings for Liquefied Gas Pumps
- Spherical Roller Bearings Featuring High Reliability and Excellent Sealing Performance for Conveyor Pulleys in Mines
- Ball Bearings for Ultra-High-Speed Rotary Motors
- ROBUSTSHOT Bearings: Direct Lubrication Angular Contact Ball Bearings for Machine Tool Spindles
- Ultra-Large Ball Screws
No.27
November 2016
Technical Papers
- Visualization of lubricating grease in ball bearing using x-ray ct and validation of digital simulation
- Visualization of grease behavior in a ball bearing using x-ray
- Low torque technology using grease and application to motor bearings
- Water resistant technology for grease and application to bearings
- Development of bearing units with torque sensors for automotive transmissions
- Development of automotive transmission thrust needle roller bearings with integrated washer and oil flow control
- Development of low-friction grease for eps worm reduction
- Development of micro manipulation system
- Strategy for frictional behavior control in ball screws
New Products
- High-reliability clutch release bearings for emerging markets
- Compact, Lightweight Planetary Needle Bearings
- Idler/tensioner bearings with high-speed capability and excellent sealing performance
- Dental Air Turbine Bearings
- Long-Life, Sealed Four-Row Tapered Roller Bearings for High-Speed Rolling Mills
- NSKTAC03 NSKHPS Angular Contact Thrust Ball Bearings for Ball Screw Support in High-Load Drive Applications
- Ball Screws with Minimal Grease-Splatter L1 Seals
- TOUGHCARRIER
- NH Series and NS Series NSK Linear Guides: More than Twice the Life of Conventional NSK Linear Guides
- MEGATORQUE MOTOR PB Series
No.26
April 2016
Technical Papers
- Prismless Surface Plasmon Resonance (P-SPR) Sensor Using Periodic Nanostructures
- Evaluation of Lubrication Properties of the 100 % Food-Derived Grease for Rolling Bearings
- Increasing Sizes of Wind Turbines and Bearing Trends
- Technological Trends of Bearings for Industrial Compressors
- Development of the TOUGHCARRIER for Automotive Manufacturing Equipmen
- Development of a Nut Cooling Ball Screw
New Products
- Ultra-High-Speed Precision NSKROBUST Angular Contact Ball Bearings for Main Spindles of Machining Centers
- Long-Life Thrust Ball Bearings with a Highly Reliable Cage for Agricultural Machinery HSTs
- Cylindrical Roller Bearings for Centrifugal Chillers
- BNEQARTET—Long-Life Ball Bearings for Washing Machines
- SPACEA Series—Solid-Lubricant-Coated Bearings for High Temperatures
- Ball Screws with X1 Seals for Machine-Tool Applications
- HTF-SRE Large, High-Speed, High-Load Capacity Ball Screws
- NSK Roller Guides Equipped with V1 Seals
- Random-matching, High-Precision-Grade RA Series Roller Guides
Technical Papers
- The Effects of Hydrogen on Microstructural Change and Surface Originated Flaking in Rolling Contact Fatigue
- Efficiency Improvement in Half-Toroidal CVTs
- Improvement of Efficiency in Half-Toroidal CVTs
New Products
No.25
September 2016
Technical Papers
- Coupled Simulation of Starved Elastohydrodynamic Lubrication and Liquid Film Flow
- Differences in Preventive Mechanisms for Fretting Wear between Oil and Grease Lubrication
- Development of a Robot Substitute for a Guide Dog
- Technological Trends of Jet Aircraft Engine Bearings
- Technology Development and Future Challenge of Machine Tool Spindle
- Electrical Erosion of Motor Bearings
- Development of Long-Life Planetary Shaft (SHX3 Steel) for Planetary Gears of Automotive Transmissions
New Products
- Shinkansen Axle Cylindrical Roller Bearings for E5 Series Bullet Train
- High-Performance Standard NSKHPS Large-Size Spherical Roller Bearings
- Energy-Saving HALFRICTION Ball Bearings for High-Efficiency Motors
- High-Performance, Shielded Double-Row Angular Contact Ball Bearings for Industrial Water Pumps
- NSKROBUST Series Type E of Angular Contact Ball Bearings for Machine Tools
- SPACEA Series—Highly Corrosion Resistant and High-Hardness Stainless Steel ESZ Bearings
- Ultrahigh-Speed, Large-Diameter Ball Bearing for Hybrid Car Motors
- Highly Reliable, Lower Frictional Torque Ball Bearings for Belt-Type CVTs
- Silent Needle Roller Bearing for Automotive Electrical Components
- Automotive Transmission Thrust Needle Roller Bearings with Integrated Washer and Oil-Flow Control
- HMS Series of Ball Screws for High-Speed Machine Tools
- Miniature Large-Lead Series of High-Speed, Low-Noise Ball Screws
- Precision-Grade, Medium-Preload, Random-Matching NSK Linear Guides
- Random-Matching, Miniature PU and PE Series of NSK Linear Guide
- Highly Durable, Highly Rigid, Slidable Intermediate Shaft for EPS
- Wedge Gear of New Positive-Lock Mechanism for Steering Column
- Megapositioner of Highly Rigid, Ultralarge-Torque-Output, Rotary Positioning Units
- PX Series of High-Acceleration Megatorque Motors
No.24
December 2014
Technical Papers
- Development of Ultrahigh-Speed Ball Bearings for Motors in Next-Generation Hybrid Vehicles
- Development of New-Generation Low-Frictional-Torque Tapered Roller Bearings
- Development of Ultralow-Torque Ball Bearings for Hybrid Vehicles
- Development of Low-Torque Thrust Needle Roller Bearing for Automotive Air Conditioner Compressors
- Development of Low-Torque Hub Unit Bearings
- Technological Trends of Bearings for Electric Motors on Board Vehicles
New Products
- Ultrahigh-Speed Ball Bearing for Motors and Power Generators in Next-Generation Hybrid Vehicles
- Ultralow-Torque Sealed-Clean Ball Bearings for Transmissions
- High-Speed-Type Miniature Roller & Cage Assembly for Planetary Gears
- Long-Life Thrust Needle Roller Bearings Using Alternative Material to SK85
- High-Strength, Pressed-Steel Pulley
- Newly Developed, Highly Durable Clutch Pulley Unit
- Electric Power Steering System for Excellent On-Center Steering Feel
- Ball Screw for Motorcycle Brake Systems
Technical Papers
- Mechanism of Dent Initiated Flaking and Bearing Life Enhancement Technology under Contaminated Lubrication Condition
Part I: Effect of Tangential Force on Dent Initiated Flaking - Mechanism of Dent Initiated Flaking and Bearing Life Enhancement Technology under Contaminated Lubrication Condition
Part II: Effect of Rolling Element Surface Roughness on Flaking Resulting from Dents, and Life Enhancement Technology of Rolling Bearings under Contaminated Lubrication Condition
- Oil Film Behavior under Minute Vibrating Conditions in EHL Point Contacts
- Development of ROBUSTSLIM Series of Low-Profile Angular Contact Ball Bearings for Swivel Units in Machine Tools
New Products
- Smear-Resistant Spherical Roller Bearings for Papermaking Machinery
- High-Performance Bearings for Satellite Attitude Control Reaction Wheels
- Slight-Preload Type RA Series Roller Guides of NSK Linear Guides
No.23
July 2013
Technical Papers
- Temperature Rise Analysis in Traction Contact Areas of Toroidal CVTs*
—Influence of Half-Cone Angle on Temperature Rise - Improvements of Half Toroidal CVT
- Development of World's Thinnest Drawn-Cup Needle Roller Bearings with Seal Ring
—The Need for Improved Fuel Economy and the Application of Needle Roller Bearings
New Products
- Thrust Needle Roller Bearings with Retention Tabs
- Cartridge-Type Ball Bearings for Turbochargers
- High-Performance Standard NSKHPS Angular Contact Ball Bearings for Industrial Machinery
- Low-Torque, Highly Rigid, Thin-Section, Angular Contact Ball Bearings Fitted with Outer Seals
- General-Purpose, Shielded Deep Groove Ball Bearings with High Load Capacity
- Highly Reliable & Long-Life Split Cylindrical Roller Bearing Units for Segmented Drive Rolls
- TW Series of Ball Screws for Twin-Drive Systems
- HMD Series of Ball Screws for High-Speed Machine Tools
- RB Series Roller Guides of NSK Linear Guides
No.22
March 2011
Technical Papers
- Technological Trends of Railway Rolling Stock Bearings
- Technological Trends of Bearings for Construction Machinery
- Bearing Technology for Industrial Compressors
- Technological Trends of Ball Screws for Industrial Machinery
- Technological Trends of NSK Linear Guides for Industrial Machines
- Technological Trends of Ball Bearings for Household Electrical Appliances
- Development of a Plastic Cage for High-Performance, Electric Motor Ball Bearings
- Research of Electrically Conductive Grease for Office Equipment Bearings
New Products
- Sensor Bearings for Railway Rolling Stock Axles
- ELCOMP Bearings Series for Screw Compressors in Industrial Applications
- High-Performance Angular Contact Ball Bearings for Industrial Machinery Pumps
- Quiet & Low-Vibration Series of Spherical Roller Bearings for Elevator Applications
- Creepfree Bearings for Fan and Pump Motors
- Low-Friction Bearings that Promote Energy Efficiency of Vacuum Cleaner Suction Motors
- Quiet-Running Long-Life Ball Bearings for Fan Motors Operating in High-Temperature Environments
- BSL Series of Ball Screws for Small Lathes
- HTF-SRD Series of Long-Lead Ball Screws for High-Speed and Heavy-Load Applications
- High-Accuracy HS Series of Ultra-Precision NSK Linear Guides
- NSK Linear Guides for Food Processing Equipment and Medical Devices
No.21
March 2009
Technical Papers
- Unique Fatigue Failure of Spherical Roller Bearings and Life-Enhancing Measures
Part II : Long-Life Theory of NSKHPS Spherical Roller Bearings - Power Loss Factor Analysis of the High-Power Output EPS System
- Development of the Next-Generation Half Toroidal CVT —Power Transmission Efficiency and Control of the Geared Neutral System
- Sensor Bearing Development
- Development of a High-Output Brushless DC Motor for EPS
- Development of Bearings for Robots in Vacuum Environments
- Development of the NSK RA Series of Roller Guides
New Products
- Ultrahigh-Speed Planetary Needle Roller Bearings
- Latest Needle Roller Bearing Assembly Promotes Greater Efficiency in Automotive Transmissions
- Highly Corrosion-Resistant Self-Aligning Ball Bearings
- World’s Thinnest Microactuator Pivot Ball Bearing Assembly
- Tapered Roller Bearings with an Aligning Ring for Continuous Casting Machines
- NN-Z Series of Double-Row Cylindrical Roller Bearings for Machine Tools
- New Global Standard of Packaging for Precision-Class Bearings
- V1 Series of Ball Screws for Contaminated Environments
- HTF-SRC Series of Ball Screws for High-Speed and High-Load Applications
- NSK RA Series of Roller Linear Guides with Interchangeable Rails & Sliders with Guaranteed Preload
No.20
August 2007
Technical Papers
- Unique Fatigue Failure of Spherical Roller Bearings and Life-Enhancing Measures
Part I : Unique Fatigue Failure of Spherical Roller Bearings - Bearing Outer Ring Creep
- Latest Developments in Thin-Film Lubrication Technology for Vacuum and Clean Environments
- Development of Nanopositioner
- Development of Ultrahigh-Speed Planetary Needle Roller Bearings
- Development of Thrust Needle Roller Bearing with Wear-Resistant & High-Strength Cage
New Products
- Newly Developed Series of Electrically Conductive Bearings for Office Equipment
- High-Temperature Long-Life Engine Accessory Bearings
- High-Capacity Angular Contact Water Pump Bearings
- Eccentric Bearings
- V1 Series of Highly Dust-Resistant NSK Linear Guides
- High-Output Pinion-Type Electric Power Steering
- Hydroformed Steering Column
- PS Series of Megatorque Motors
No.19
September 2006
Technical Papers
- Development of the Next-Generation Toroidal CVT
—Geared Neutral and Power-Split System for 450 N·m Engines - High-Performance Standard Roller Bearings
—NSKHPS Spherical Roller Bearings - Pulley Support Bearings for Push-Belt CVTs
- Long-Life Materials Countering White Structure Flaking
New Products
- High Performance Series —NSKHPS Spherical Roller Bearings
- Long-Life Bearings for Push-Belt CVTs—BELTOP Bearings
- Creep-Resistant Outer Ring of Automotive Transmission Bearings
- Lip-Guided (LG) Thrust Needle Roller Bearings
- Alternator Ball Bearings
- High-Strength Plastic Pulley Units
- High-Speed and Low-Noise Ball Screws for Standard Stock—Compact FA Series
- Zero Backlash Joint
- High-Power Column-Type Electric Power Steering
No.18
August 2005
Technical Papers
- Technology of Highly Reliable Bearings for Wind Turbine Gearboxes
- Bearing Technologies for Centrifugal Pumps
- Trends of Bearing Technology in Iron and Steel Industries
- Automatic Grease Replenishing System for Machine Tool Main Spindles — Fine Lub II
- S3 Ball Screws: Super Low-Noise Ball Screws for Automation Equipment
- Development of New Series of Megatorque Motor Series for High Speed and Precise Positioning
New Products
- Long Life Roll Neck Bearings for Steel Rolling Mills—WTF™ Bearings
- Sensor Bearings for General Industrial Machinery
- Long-Term Maintenance-Free Ball Bearings for Railway Traction Motors
- Ultra-Precision Bearings for Precision Machine Tools—Robust P2X Series
- Miniature Monocarrier MCM02
- New Generation of NSK Linear Guides Miniature PU Series/PE Series
No.17
May 2005
Technical Papers
- Trends and New Technologies of Hub Unit Bearings
- Simulation Technology for Developing EPS Brushless Motors
- Latest Trends and Technologies of Automotive Electrical Component Bearings
- Low Frictional Torque Technology of Rolling Bearings
- Latest Technologies Applied to AT Maji-Band
- Trends and New Technologies of Automatic Transmission Bearings
- Efficiency Analysis of Half-Toroidal CVT Considering Deformation of Pivot Shaft
New Products
- HUBK Series of Hub Unit Bearings for Minivehicles
- Column-Type Electric Power Steering
- NSK LCube Series of Highly Durable Tappet Rollers
- Long-Life Double-Row Angular Contact Ball Bearings
- Long-Life Double-Row Tapered Roller Bearings
No.16
August 2004
Technical Papers
- Latest Trends in Machine Tool Spindles and Bearing Technology
- Development of Integrated Motor Spindle Unit for Machine Tools Using Automatic Grease Replenishing System
- Development of High-Speed and Low-Noise Ball Screws
- Numerical Analysis Technology & NSK Linear Guides for Machine Tools
New Products
- High-Speed Precision Angular Contact Ball Bearings—Spinshot™ II
- Super Precision Sealed Angular Contact Ball Bearings
- Sealed Angular Contact Thrust Ball Bearings for Ball Screw Supports
- High-Performance Cylindrical Roller Bearings
—Double Row Cylindrical Roller Bearings & Ultra High-Speed Single Row Cylindrical Roller Bearings
Technical Papers
New Products
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