{
  "$type": "site.standard.document",
  "description": "The drive (1) has hub shells (3) rotatably mounted around axles (2), and a brushless electromotor arranged coaxial to the axles and provided with a rotor (4) and a stator for driving the hub shells. The rotor comprises a permanent magnet (6), and the stator is provided with an ironless stator…",
  "path": "/patents/992568",
  "publishedAt": "2013-02-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L50/20",
    "MAXON MOTOR AG [CH]"
  ],
  "textContent": "The drive (1) has hub shells (3) rotatably mounted around axles (2), and a brushless electromotor arranged coaxial to the axles and provided with a rotor (4) and a stator for driving the hub shells. The rotor comprises a permanent magnet (6), and the stator is provided with an ironless stator winding (7). Planetary gears (12) are shifted between the electromotor and the hub shells and coupled with the rotor in a drive-side and the hub shells in a drive off-side. The hub shells are designed as motor shell (8) and made of material with high thermal conductivity e.g. steel or aluminum.",
  "title": "Electric wheel hub drive for a vehicle, in particular for a bicycle"
}