{
  "$type": "site.standard.document",
  "description": "A retainer for an angular contact ball bearing that can sufficiently shorten circumferential distance between pockets adjacent to each other in the circumferential direction so as to increase the number of balls that can be held is provided. A notch 43 that communicates a pair of pockets 42…",
  "path": "/patents/1406099",
  "publishedAt": "2025-11-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60B27/0005",
    "NSK LTD [JP]"
  ],
  "textContent": "A retainer for an angular contact ball bearing that can sufficiently shorten circumferential distance between pockets adjacent to each other in the circumferential direction so as to increase the number of balls that can be held is provided. A notch 43 that communicates a pair of pockets 42 adjacent to each other in the circumferential direction is provided in a range from an end section on the axially one side to the axially intermediate section of each of a plurality of pillar portions 41 of a retainer 12 for an angular contact ball bearing. The notch 43 has a substantially rectangular opening shape as seen from the circumferential direction, and an inner surface of the notch 43 has an outer diameter side flat surface portion 44 arranged on the radially outer side from the center C of a pocket 42 and extending substantially linearly in the axial direction, an inner diameter side flat surface portion 45 arranged on the radially inner side from the center C and extending substantially linearly in the axial direction, and a back side flat surface portion 46 arranged on the axially other side from the center C and extending linearly in the radial direction.",
  "title": "ANGULAR BALL BEARING RETAINER, ANGULAR BALL BEARING, AND HUB UNIT BEARING"
}