| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for measuring a groove curvature of a ball bearing, which is easily applied to a site for grooving an orbital plane of the bearing and the like, and precisely measures the groove curvature of the orbital plane at a low cost, without being dependent on the measurement technique of an operator, and to provide an apparatus for measuring the groove curvature which is used for the measuring method. SOLUTION: In the method for measuring the groove curvature of the ball bearing, a spherical-surface electrode 3 made of a conductive body 4 being coated by an insulating film 5 and having a spherical surface simulated to a ball of the ball bearing, is set such that the spherical surface is in pressed contact with the orbital plane 2 of the ball bearing, and in this state, a capacitance between the spherical-surface electrode 3 and the orbital plane 2 is measured, and then the groove curvature of the orbital plane 2 is measured based on a value of the capacitance. COPYRIGHT: (C)2009,JPO&INPIT
|
