"roller bearing" meaning in English

{
  "forms": [
    {
      "form": "roller bearings",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "roller bearing (plural roller bearings)",
      "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"
        }
      ],
      "coordinate_terms": [
        {
          "word": "ball bearing"
        }
      ],
      "examples": [
        {
          "ref": "1959, edited by David P. Morgan, Steam's Finest Hour, Kalmbach Publishing Co.",
          "text": "In 1930 the proposal of placing all axles of a steam locomotive on roller bearings was viewed so suspiciously that the Timken Roller Bearing Company couldn't even obtain permission to equip an existing engine at its own expense. (It ended up buying a demonstrator loco and equipping that with roller bearings instead.)",
          "type": "quotation"
        },
        {
          "ref": "1961 November, “Talking of Trains: The roller-bearing A1s”, in Trains Illustrated, page 643",
          "text": "The five roller-bearing A1s are now averaging 120,000 miles between shopping; this figure is an improvement of about 50 per cent on the norm of other ex-L.N.E. Pacific types.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A bearing in which the load is carried by round (e.g. cylindrical or spherical) elements (rollers)."
      ],
      "id": "en-roller_bearing-en-noun-BAMav58g",
      "links": [
        [
          "rollers",
          "roller#English"
        ]
      ],
      "related": [
        {
          "tags": [
            "adjective"
          ],
          "word": "rollered"
        },
        {
          "word": "roller table"
        },
        {
          "word": "ball bearing"
        }
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "type of bearing",
          "word": "vierintälaakeri"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "type of bearing",
          "word": "rullalaakeri"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "rólikovyj podšípnik",
          "sense": "type of bearing",
          "tags": [
            "masculine"
          ],
          "word": "ро́ликовый подши́пник"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "type of bearing",
          "word": "rullager"
        }
      ]
    }
  ],
  "word": "roller bearing"
}

{
  "coordinate_terms": [
    {
      "word": "ball bearing"
    }
  ],
  "forms": [
    {
      "form": "roller bearings",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "roller bearing (plural roller bearings)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "tags": [
        "adjective"
      ],
      "word": "rollered"
    },
    {
      "word": "roller table"
    },
    {
      "word": "ball bearing"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1959, edited by David P. Morgan, Steam's Finest Hour, Kalmbach Publishing Co.",
          "text": "In 1930 the proposal of placing all axles of a steam locomotive on roller bearings was viewed so suspiciously that the Timken Roller Bearing Company couldn't even obtain permission to equip an existing engine at its own expense. (It ended up buying a demonstrator loco and equipping that with roller bearings instead.)",
          "type": "quotation"
        },
        {
          "ref": "1961 November, “Talking of Trains: The roller-bearing A1s”, in Trains Illustrated, page 643",
          "text": "The five roller-bearing A1s are now averaging 120,000 miles between shopping; this figure is an improvement of about 50 per cent on the norm of other ex-L.N.E. Pacific types.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A bearing in which the load is carried by round (e.g. cylindrical or spherical) elements (rollers)."
      ],
      "links": [
        [
          "rollers",
          "roller#English"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "type of bearing",
      "word": "vierintälaakeri"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "type of bearing",
      "word": "rullalaakeri"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "rólikovyj podšípnik",
      "sense": "type of bearing",
      "tags": [
        "masculine"
      ],
      "word": "ро́ликовый подши́пник"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "type of bearing",
      "word": "rullager"
    }
  ],
  "word": "roller bearing"
}