Technical Journal

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)
• Fracture Mechanics-Based Criteria for Fatigue Fracture of Rolling Bearings under the Influence of Defects
• 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
• Condition Monitoring Application Software ACOUS NAVI™ (FIELD System)
• 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

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

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)
• Low Torque Technologies for Rolling Bearings with Grease Lubrication
• 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

Preface

NSK's Latest Technologies and Products for Industrial Machinery

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

• Wireless Vibration Diagnostic Device Bearing Doctor Model BD-2
  
• Low-Torque Ball Bearings for High-Efficiency Motors
• Optimized Long-Life Cylindrical Roller Bearings for Continuous Casting Machines
• Large (TL) Spherical Roller Bearings Resistant to Inner Ring Fracture for Paper Machines
• Vibration Control Actuator for Train Cars

Preface

Automotive Products and Technologies

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
• Enhanced Performance of Rolling Bearings by Improving the Resistance of Rolling Elements to Surface Degradation
• Relationship between Supplied Oil Flow Rates and Oil Film Thicknesses under Starved Elastohydrodynamic Lubrication

New Products

• BELTOP8 High-Reliability and Low-Friction Ball Bearings for CVTs
• Super-Long-Life Needle Rollers for Automobile Transmissions
• Plastic Pin Internal Contractile Steering Column

Preface

NSK Commemorates its Centennial

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

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
• Idler/tensioner bearings with high-speed capability and excellent sealing performance
• Dental air turbine bearings
• Long-life
• 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

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

Partial Special Issue of Automobile Products

Preface

NSK's Automotive Products

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 Articles

• Mechanism of Dent Initiated Flaking and Bearing Life Enhancement Technology under Contaminated Lubrication Condition
  Part I: Effect of Tangential Force on Dent Initiated Flaking
  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

Technical Papers

• Temperature Rise Analysis in Traction Contact Areas of Toroidal CVTs*
  —Influence of Half-Cone Angle on Temperature Rise
• Microstructural Development in Bearing Steel during Rolling Contact Fatigue
  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
• Technological Trends in Linear Motion Rolling Guides for Machine Tools

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

Special Issue of Products Supporting Daily Life and Industry

Special Articles

• Preface
• 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

Technical Articles

• 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

Technical Articles

• 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

Technical Articles

• 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
• Research Work for Clarifying the Mechanism of White Structure Flaking and Extending the Life of Bearings

• 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

• 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

• Hub Unit Bearings with ABS Sensor
• Development of NSK ABLE Forecaster
• Long Life Bearing Technology by Carbonitriding
• Research of Auxiliary Landing Bearings for Turbo Molecular Pumps
• Electrically Conductive Bearing Grease for Office Equipment

• Development of Water-Tough (WTF) Bearings for Steel Mills — Longer Life in Harsh Environments
• Non-Magnetic and Highly Corrosion-Resistant Titanium Alloy Bearings
• Development of New High-Capacity Cylindrical Roller Bearings
• Super Precision Cylindrical Roller Bearings
• Development of the Next-Generation Half-Toroidal CVT
• Development of Wedge Roller Traction Drive Units
• High Straightness Positioning Stage Implementing Real-time Position Compensation

• Development of Silent-running Cylindrical Roller Bearings
• Development of the Super Wear-Resistant (SWR) Bearing
• Pressed Rocker Arm
• Development of Double-Row Bearings for Automatic Transaxles
• Development of Low-Noise NSA Grease for Fan Motor Bearings
• Development of HTF Series Ball Screws for High Load Drive Application

• Activities Towards Environmentally Friendly Products
• NSK Products and Technologies Contribute to Energy Conservation
• Development of NSK's Extremely Quiet, Low-Torque, GR Series Ball Bearings
• NSK Products and Technologies for Preserving Natural Resources
• NSK Products and Technologies for Promoting a Cleaner Environment while Preserving Natural Resources
• NSK Products and Technologies Contributing to Low Noise and Low Vibration

• Development of New Life Equation for Ball and Roller Bearings
• Development of the Half-Toroidal CVT POWERTOROS Unit (3)
  — Development of the Power-Split System
• Automobile Transmission Performance and Bearing Type
• Development of NSK S1 Series Ball Screws and Linear Guides

• Development of POWERTOROS Unit Half-Toroidal CVT (2)
• Development of Hub Unit Bearing with Swaging
• An Auto-Tensioner for Timing Belts
• Development of High-Speed Cylindrical Roller Bearings for Machine Tools

• EA Spherical Roller Bearings
• ROBUST Series High-Speed Precision Angular Contact Ball Bearings for Machine Tool Spindles
• Development of the POWERTOROS UNIT Half Toroidal CVT
• Recent Developments in Highly Precise NSK Linear Guides

• Development of NSK Extra-Capacity Sealed-Clean Roll Neck Bearings for Rolling Mills
• Ball Screw with Rotating Nut and Vibration Damper
• Ceramic Bearings for Special Environments
• Excellent Stainless Bearing Steel (ES1)
• Development of NSJ2 Bearing Steel

• SPACEA Series Products for Special Environments
• Bearings for Traction Gears
• Inner Ring Fracture Characteristics under Rolling Contact
• ABS Motor/Actuator Bearing Development for Applications Which Require Brake Fluid Compatible Contact Seals
• High-Performance Ball Bearings for Fan Motors in the Chinese Market

• Bearings for Aircraft Gas Turbine Engines (part 2)
• Electric Power Steering (EPS)
• Recent Development of NSK Direct-Drive Motors
• New Electronic NSK Product Guide
• Sound and Vibration in Rolling Bearings

• Bearings for Aircraft Gas Turbine Engines (part 1)
• Development of NSK Linear Guides
• Rear-wheel Bearings for Fully Floating Axles—Analysis of Load and Optimum-strength Design
• Rolling Bearings for Hard Disk Spindle Motors
• Development of the NSK K1 Seal for Linear Guides

• Recent Technical Trends in Ball Screws
• Research and Development of Bearings for Special Environments
• Performance of Large-size Spherical Thrust Roller Bearings at High Speed
• High-performance Ball Bearings for Automotive Alternator Applications
• Analysis of Steering Column Vibration