{
 "slug": "ball-bearings",
 "name": "Ball Bearings",
 "root": "tools-hardware",
 "unit": "each",
 "unit_as_designed": null,
 "unit_note": "Count individual bearings; for a multipack, divide the listed price by the number of bearings. Compare products only when their dimensions and bearing type suit the same application.",
 "gpc": {
  "brick_code": "10003170",
  "brick": "Bearings/Bushings",
  "class": "Fixings/Fasteners Hardware",
  "family": "Building Products",
  "segment": "Building Products"
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   "brick_code": "10003170",
   "brick": "Bearings/Bushings",
   "class": "Fixings/Fasteners Hardware",
   "family": "Building Products",
   "segment": "Building Products"
  }
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   "label": "Bearing type",
   "type": "enum",
   "unit": null,
   "values": [
    "radial",
    "thrust",
    "cartridge",
    "other",
    "unknown"
   ],
   "why_it_matters": "The type determines the direction and kind of load the bearing can support."
  },
  {
   "key": "bore_mm",
   "label": "Bore diameter",
   "type": "number",
   "unit": "mm",
   "values": null,
   "why_it_matters": "Must fit the shaft or axle."
  },
  {
   "key": "outer_diameter_mm",
   "label": "Outer diameter",
   "type": "number",
   "unit": "mm",
   "values": null,
   "why_it_matters": "Must fit the housing or bearing seat."
  },
  {
   "key": "width_mm",
   "label": "Width",
   "type": "number",
   "unit": "mm",
   "values": null,
   "why_it_matters": "Must fit the available axial space."
  },
  {
   "key": "closure",
   "label": "Closure",
   "type": "enum",
   "unit": null,
   "values": [
    "open",
    "shielded",
    "sealed",
    "unknown"
   ],
   "why_it_matters": "Shields or seals help protect the bearing from dust and contaminants."
  },
  {
   "key": "precision_class",
   "label": "Precision class",
   "type": "string",
   "unit": null,
   "values": null,
   "why_it_matters": "Higher precision can reduce runout for applications that need accurate rotation."
  },
  {
   "key": "max_speed_rpm",
   "label": "Maximum speed",
   "type": "number",
   "unit": "rpm",
   "values": null,
   "why_it_matters": "The rated speed must meet the application's operating speed."
  }
 ],
 "minimum_spec": {
  "description": "For a typical general-purpose replacement, choose a radial or cartridge ball bearing with bore, outer diameter, and width matching the application. A shielded or sealed closure is a practical baseline for protection from everyday dust and debris.",
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   {
    "key": "bearing_type",
    "op": "in",
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     "radial",
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    ]
   }
  ]
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  "closure",
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}