{
  "$type": "site.standard.document",
  "description": "A gas turbine engine comprising first and second rotor shafts and an intershaft rolling element bearing arranged between the shafts. The first rotor shaft has a stator stage and a rotor stage; the second rotor shaft has only a rotor stage and is arranged to contra-rotate relative to the first…",
  "path": "/patents/1004109",
  "publishedAt": "2012-03-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01D25/16",
    "ROLLS ROYCE PLC [GB]"
  ],
  "textContent": "A gas turbine engine comprising first and second rotor shafts and an intershaft rolling element bearing arranged between the shafts. The first rotor shaft has a stator stage and a rotor stage; the second rotor shaft has only a rotor stage and is arranged to contra-rotate relative to the first shaft. The intershaft bearing is arranged between the first and second shafts such that the relative speeds of the shafts minimise a cage speed of the intershaft bearing.",
  "title": "Gas turbine engine bearing arrangement"
}