{
  "$type": "site.standard.document",
  "description": "An inner ring (3) is fit to a stepped part (8) formed on the inner end of a hub (2b). A desired pre-load is applied to rolling elements (5) in a state that an outer end face (28) of the inner ring (3) is butted against a step surface (12) formed on the hub (2b). The inner ring (3) is fit to the hub…",
  "path": "/patents/1111965",
  "publishedAt": "2001-06-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60B27/0084",
    "NSK LTD [JP]"
  ],
  "textContent": "An inner ring (3) is fit to a stepped part (8) formed on the inner end of a hub (2b). A desired pre-load is applied to rolling elements (5) in a state that an outer end face (28) of the inner ring (3) is butted against a step surface (12) formed on the hub (2b). The inner ring (3) is fit to the hub (2b) by interference fitting causing a static friction force, which is larger than a thrust load acting on the inner ring (3) based on the pre-loading. Additionally, the inner end face of the inner ring (3) is clamped with a caulking portion, which is formed by expanding outward in the diameter directions a cylindrical portion (18) formed in the inner end of the hub (2b).",
  "title": "Wheel-support rolling bearing unit and method of manufacturing the same"
}