Cart Axle Bearings
Greased wooden, leather, or metal bearing surfaces that reduced friction and wear in wheeled transport.
Core metadata
- ID: cart_axle_bearings
- Era: Ancient
- First known date: -3500 (century)
- Region: Early wheeled-vehicle regions
- Review status: source_checked
- Maturity: N/A
Prerequisites
Dependents
- None.
Fields
Field lanes
- Mechanical Engineering: Mechanisms & Machines
Node sources
- Wheel (Encyclopaedia Britannica, 2026, textbook) • Supports: edge, node
Prerequisite edge evidence
Edge/source evidence summary:
- Prerequisite edges: 2
- Average edge confidence: 68%
- Prerequisite sources: 2
- expert_inference: 2
| Prerequisite | Type | Confidence | Evidence level | Note | Sources |
|---|---|---|---|---|---|
| Wheeled Vehicles (wheeled_vehicles) | enabling | 68% | expert_inference | Wheeled Vehicles provides a capability that enables this technology without being the only possible path. |
|
| Leather Tanning (leather_tanning) | enabling | 68% | expert_inference | Leather Tanning provides a capability that enables this technology without being the only possible path. |
|
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