Patent ID: 11953055
Assignee: NSK LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  G | IPC F  G

Claim 0:
1. An inspecting method of a raceway ring member which includes a sliding surface with which a distal end portion of a seal lip is in sliding contact, the inspecting method comprising:
obtaining an original image by photographing at least a part of the sliding surface using a camera;
performing an imaging process on the original image and detecting a plurality of machining marks of the sliding surface to obtain a detection image; and
estimating rotation characteristics of a component having the raceway ring member assembled therein on the basis of the detection result of the machining marks by estimating a difference of a rotation torque of the raceway ring member with respect to another raceway ring member in a direction of relative rotation between the raceway ring member and the other raceway ring member when the raceway ring member is combined with the other raceway ring member on the basis of an area and/or the number of machining marks in the detection image.