{
  "category": "Sprockets",
  "vertical": "power-transmission-and-bearings",
  "source": "https://getclaro.ai/resources/attribute-library/power-transmission-and-bearings/sprockets/",
  "status": "editorial-draft",
  "note": "Editorial reference template. Example values show format only and do not describe a real SKU. Not an official ETIM or ECLASS class.",
  "groups": [
    {
      "key": "identity",
      "name": "Identity",
      "check": "Preserve leading zeros and punctuation, validate against the manufacturer record, and check the GTIN check digit and packaging level before linking."
    },
    {
      "key": "technical",
      "name": "Technical specifications",
      "check": "Store the number and unit separately. Convert only when the source unit and test conditions are known."
    },
    {
      "key": "selection",
      "name": "Selection attributes",
      "check": "Map supplier wording to a governed vocabulary only after checking the source text and which variant it applies to."
    },
    {
      "key": "fit",
      "name": "Fit & compatibility",
      "check": "Keep model and series qualifiers. A similar-looking part is not a verified fit until a source says so."
    },
    {
      "key": "evidence",
      "name": "Evidence & compliance",
      "check": "Link the manufacturer document or label with its edition or date. Never copy a certification from a neighboring SKU."
    }
  ],
  "fields": [
    {
      "key": "industry_chain_size",
      "label": "Chain Size",
      "group": "fit",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "ANSI 60"
    },
    {
      "key": "chain_pitch",
      "label": "Chain Pitch",
      "group": "technical",
      "priority": "core",
      "value_type": "number",
      "unit": "in",
      "example_format": "0.750 in"
    },
    {
      "key": "number_of_teeth",
      "label": "Number of Teeth",
      "group": "selection",
      "priority": "core",
      "value_type": "number",
      "unit": null,
      "example_format": "15"
    },
    {
      "key": "number_of_strands",
      "label": "Number of Strands",
      "group": "fit",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Simplex (1 strand)"
    },
    {
      "key": "hub_style",
      "label": "Hub Style",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Type B (hub one side)"
    },
    {
      "key": "bore_type",
      "label": "Bore Type",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Finished bore with keyway and setscrews"
    },
    {
      "key": "bore_diameter",
      "label": "Bore Diameter",
      "group": "fit",
      "priority": "core",
      "value_type": "number",
      "unit": "in",
      "example_format": "1.000 in"
    },
    {
      "key": "material",
      "label": "Material",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "1045 carbon steel"
    },
    {
      "key": "manufacturer_part_number",
      "label": "Manufacturer Part Number",
      "group": "identity",
      "priority": "core",
      "value_type": "identifier",
      "unit": null,
      "example_format": "SP-60B15-1000"
    },
    {
      "key": "bushing_type_size",
      "label": "Bushing Type & Size",
      "group": "fit",
      "priority": "differentiating",
      "value_type": "controlled",
      "unit": null,
      "example_format": "QD, size SK"
    },
    {
      "key": "maximum_bore_diameter",
      "label": "Maximum Bore Diameter",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "in",
      "example_format": "1.25 in"
    },
    {
      "key": "keyway_setscrew_spec",
      "label": "Keyway & Setscrew",
      "group": "fit",
      "priority": "differentiating",
      "value_type": "text",
      "unit": null,
      "example_format": "1/4 x 1/8 in keyway; two setscrews"
    },
    {
      "key": "hardened_teeth",
      "label": "Hardened Teeth",
      "group": "selection",
      "priority": "differentiating",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Yes"
    },
    {
      "key": "pitch_diameter",
      "label": "Pitch Diameter",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "in",
      "example_format": "3.607 in"
    },
    {
      "key": "outside_diameter",
      "label": "Outside Diameter",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "in",
      "example_format": "3.98 in"
    },
    {
      "key": "governing_standard",
      "label": "Governing Standard",
      "group": "evidence",
      "priority": "channel",
      "value_type": "controlled",
      "unit": null,
      "example_format": "ASME B29.1"
    },
    {
      "key": "country_of_origin",
      "label": "Country of Origin",
      "group": "evidence",
      "priority": "channel",
      "value_type": "controlled",
      "unit": null,
      "example_format": "United States"
    },
    {
      "key": "gtin_upc",
      "label": "GTIN / UPC",
      "group": "identity",
      "priority": "channel",
      "value_type": "identifier",
      "unit": null,
      "example_format": "081234560157"
    }
  ],
  "evidence_columns": [
    "raw_value",
    "normalized_value",
    "source_uri",
    "source_page_or_row",
    "confidence",
    "review_state",
    "last_verified"
  ],
  "normalization_examples": [
    {
      "attribute": "Chain Size",
      "variants": [
        "#60",
        "60-1",
        "ANSI 60",
        "RC60",
        "No. 60",
        "60 Chain"
      ],
      "normalized": "ANSI 60"
    },
    {
      "attribute": "Hub Style",
      "variants": [
        "Type B",
        "B Hub",
        "Single Hub",
        "One Side Hub",
        "Hub One Side",
        "BS"
      ],
      "normalized": "Type B (hub one side)"
    },
    {
      "attribute": "Number of Strands",
      "variants": [
        "Duplex",
        "Double",
        "2 Strand",
        "Double Strand",
        "DS",
        "2-strand"
      ],
      "normalized": "Duplex (2 strand)"
    }
  ]
}