"motor pulley" meaning in English

{
  "forms": [
    {
      "form": "motor pulleys",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "motor pulley (plural motor pulleys)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Swedish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Auto parts",
          "orig": "en:Auto parts",
          "parents": [
            "Automobiles",
            "Automotive",
            "Vehicles",
            "Transport",
            "Machines",
            "All topics",
            "Technology",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A special pulley attached to an axle of e.g. a motor to extract torque."
      ],
      "id": "en-motor_pulley-en-noun-oexK~7ze",
      "translations": [
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "pulley attached to an axle",
          "word": "drivtrissa"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "pulley attached to an axle",
          "word": "drivhjul"
        }
      ]
    }
  ],
  "word": "motor pulley"
}

{
  "forms": [
    {
      "form": "motor pulleys",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "motor pulley (plural motor pulleys)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Terms with Swedish translations",
        "en:Auto parts"
      ],
      "glosses": [
        "A special pulley attached to an axle of e.g. a motor to extract torque."
      ]
    }
  ],
  "translations": [
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "pulley attached to an axle",
      "word": "drivtrissa"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "pulley attached to an axle",
      "word": "drivhjul"
    }
  ],
  "word": "motor pulley"
}