Contents
A Brief Message from the President ––––––––––––––––––––––––––––––––––––––––––1
NSK’s Global R&D System ––––––––––––––––––––––––––––––––––––––––––––––––––––2
Recent Trends in Research and Development of Rolling Bearings at NSK––––5
The Current State of Precision Machinery and Parts Products––––––––––––––13
American Technical Center –––––––––––––––––––––––––––––––––––––––––––––––––21
European Technology Centre––––––––––––––––––––––––––––––––––––––––––––––––24
Development of Long Life Bearing Steel for Full Film Lubrication
and for Poor and Contaminated Lubrication ––––––––––––––––––––––––––––––30
Noise Level of Precision Ball Screws ––––––––––––––––––––––––––––––––––––––––37
New Products
Ball Bearings for HDD Spindles –––––––––––––––––––––––––––––––––––––––––42
Sealed Clean Cylindrical Roller Bearings––––––––––––––––––––––––––––––––44
Spherical Roller Bearings with TL Specification ––––––––––––––––––––––––46
Megatorque Motor, YS Series Flat Type––––––––––––––––––––––––––––––––––49