{
  "abstract": "A bearing chain assembly may include vertical load bearings each having a first rotation axis and configured to roll along horizontal support structure of a drive system while supporting vertical loads of a spiral conveyor belt; radial load bearings alternately coupled with the vertical load bearings and each including: a roller assembly configured to facilitate rolling of the bearing chain assembly along vertical support structure of the drive system while supporting radial loads of the spiral conveyor belt and/or the drive system. The roller assembly includes first and second roller wheels each having a rotation axis substantially perpendicular to the first rotation axis and made of a first material; a first glide bearing secured to the first roller wheel, the first glide bearing made of a second material having a lower frictional resistance than the first material; and a connection assembly for coupling the first wheel to the second wheel.",
  "assignees": [
    "JOHN BEAN TECHNOLOGIES AB"
  ],
  "authors": [
    "CARLSSON BO RICHARD JIMMY",
    "GRAMBY GÖRAN",
    "PERSSON ANTON"
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  "title": "Bearing chain assembly",
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