{
  "$type": "site.standard.document",
  "description": "Provided is a bearing device for a wheel, including a wheel bearing (6) including: an outer ring (5) having outer raceway surfaces (14, 15) formed on an inner periphery thereof; a hub wheel (1) and an inner ring (2) having inner raceway surfaces (8, 12) respectively formed on outer peripheries…",
  "path": "/patents/946960",
  "publishedAt": "2016-01-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60B27/0005",
    "NTN TOYO BEARING CO LTD [JP]"
  ],
  "textContent": "Provided is a bearing device for a wheel, including a wheel bearing (6) including: an outer ring (5) having outer raceway surfaces (14, 15) formed on an inner periphery thereof; a hub wheel (1) and an inner ring (2) having inner raceway surfaces (8, 12) respectively formed on outer peripheries thereof; and balls (3, 4) interposed between the outer raceway surfaces (14, 15) of the outer ring (5) and the inner raceway surfaces (8, 12) of the hub wheel (1) and the inner ring (2). A stem section (30) is fitted into an inner diameter of the hub wheel (1) to couple a constant velocity universal joint (7) to the wheel bearing (6) through a screw fastening structure (N) so that a shoulder portion (45) of an outer joint member (20) is brought into abutment against a crimped portion (13) of the hub wheel (1). A plurality of projecting portions (33) formed on the stem section (30) are press-fitted into the hub wheel (1) having a plurality of depressed portions formed to have an interference with respect to the projecting portions (33), and a shape of the projecting portions (33) is transferred to the hub wheel (1), to thereby provide a projection and depression fitting structure (M) in which the projecting portions (33) and the depressed portions (37) are brought into close contact with each other at an entire fitting contact portion therebetween (X). A difference between an axial force generated by fastening a bolt (42) and an axial force generated by a press-fitting force on the stem section (30) into the hub wheel (1) is set to 32 kN or smaller.",
  "title": "BEARING DEVICE FOR WHEEL"
}