公开(公告)号：US20180313708A1

公开(公告)日：2018-11-01

申请号：US15771313

申请日：2016-10-27

Applicant: NSK LTD.

Inventor： Hiroki HAMADA ,  Yasuyuki MATSUDA ,  Masafumi HIKIDA ,  Hiroshi KAWAHARA ,  Daisuke GUNJI

IPC: G01L5/00 ,  B60B27/00

CPC classification number: G01L5/0023 ,  B60B27/0005 ,  B60B27/0026 ,  B60B27/0068 ,  B60B35/02 ,  F16C19/18 ,  F16C19/186 ,  F16C19/522 ,  F16C41/00 ,  F16C2326/02 ,  G01L5/00 ,  G01P15/18

Abstract: A vehicle wheel supporting rolling bearing unit includes a stationary side bearing ring member, a rotation side bearing ring member, and plural rolling elements. The rotation side bearing ring member is provided with a first acceleration sensor, a second acceleration sensor, and a third acceleration sensor which are fixed on a virtual plane orthogonal to a center axis of the rotation side bearing ring member. The first acceleration sensor and the second acceleration sensor are arranged on a virtual line passing through a rotation center of the rotation side bearing ring member with a same distance from the rotation center while detection directions thereof are directed in a radial direction and are opposite to each other in the radial direction. The third acceleration sensor is arranged such that a detection direction thereof is non-parallel to the detection directions of the first acceleration sensor and the second acceleration sensor.