title: A method for evaluating dynamical friction in linear ball bearings.
abstract: A method is proposed for evaluating the dynamical friction of linear bearings, whose motion is not perfectly linear due to some play in its internal mechanism. In this method, the moving part of a linear bearing is made to move freely, and the force acting on the moving part is measured as the inertial force given by the product of its mass and the acceleration of its centre of gravity. To evaluate the acceleration of its centre of gravity, the acceleration of two different points on it is measured using a dual-axis optical interferometer.
authors.affiliation: Department of Electronic Engineering, Faculty of Engineering, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan. fujii@el.gunma-u.ac.jp
authors.forename: Yusaku
authors.initials: Y
authors.lastname: Fujii
authors.forename: Koichi
authors.initials: K
authors.lastname: Maru
authors.forename: Tao
authors.initials: T
authors.lastname: Jin
authors.forename: Preecha P
authors.initials: PP
authors.lastname: Yupapin
authors.forename: Somsak
authors.initials: S
authors.lastname: Mitatha
mesh_terms: D017276:Friction; D007368:Interferometry; D055096:Optical Devices