Smartphone Building
Part · discovery

Seal preload pivot cartridge

Ferrous pivot pin and prepared copper plain-bearing sleeve supporting low-speed lever rotation. Friction, wear and creep unqualified.

Discovered · unresearchedClosure: OpenInventory incomplete

Capability requirements and tolerances

Consumer-specific numerical targets, quantities and acceptance limits remain open or incompletely reviewed. No smartphone-grade suitability is claimed. Distinct capability tiers require their own making route and qualification.

Making steps · draft selected for navigation; not a validated fabrication specification.

Known Parts and Tools

The selected route supplies this page's inventory and the map's dependency links from one record. Further requirements may be missing; review flags do not prove physical suitability.

RequirementRoleUseRelationship status
Iron stockPartincorporatedCycle-checked; compatibility unknown
Precision machinesToolreusedCycle-checked; compatibility unknown
Jigs and fixturesToolreusedCycle-checked; compatibility unknown
Copper stockPartincorporatedCycle-checked; compatibility unknown
FastenersPartincorporatedCycle-checked; compatibility unknown
Rendered tallow stockPartconsumedCycle-checked; compatibility unknown
Manual driveToolreusedCycle-checked; compatibility unknown
Finishing grinderToolreusedCycle-checked; compatibility unknown
Composition test instrumentsToolverificationCycle-checked; compatibility unknown
Reference materialsPartverificationCycle-checked; compatibility unknown
SupportsToolreusedCycle-checked; compatibility unknown
Dimensional instrumentsToolverificationCycle-checked; compatibility unknown
Length master referenceToolverificationCycle-checked; compatibility unknown
Surface flatness verification kitToolverificationCycle-checked; compatibility unknown
Workshop surfacesToolreusedCycle-checked; compatibility unknown
Cleaning equipmentToolreusedCycle-checked; compatibility unknown
Collected process waterPartconsumedCycle-checked; compatibility unknown
SolventsPartconsumedCycle-checked; compatibility unknown
ContainersToolreusedCycle-checked; compatibility unknown
Chemical effluent collection equipmentToolreusedCycle-checked; compatibility unknown
VentilationToolreusedCycle-checked; compatibility unknown
Metalworking protectionToolreusedCycle-checked; compatibility unknown
Chemical protection equipmentToolreusedCycle-checked; compatibility unknown

Making outline

  1. Manually machine ferrous pivot pin and selected copper plain-bearing sleeve from separately available stock, finish matched sliding surfaces, lubricate and independently compare geometry
  2. Detailed procedure and acceptance remain unresearched.

What remains unresolved

Canonical reuse assessment
{
  "existing_candidates_checked": [
    "bearing-stock",
    "stage-rotary-bearing"
  ],
  "decision": "Purpose-specific loaded pivot cartridge; generic bearing stock suitability is not established and positioning bearing is a different state."
}

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Used by

Items that directly require this item in their selected inventory.

Paths from Smartphone

These routes together include every item that can lead from Smartphone to this item. Repeated path combinations are collapsed; recipes are omitted.

Shortest route: Smartphone → Haptic actuator → Chip bonding wire → Wire drawing equipment → Hard, polished dies → Carbide or diamond die material → Controlled-atmosphere carbide furnace → Carbide furnace cold zone seal set → Cold zone seal comparison fixture → Seal witness gravity preload assembly → Seal preload pivot cartridge

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