輮

The outermost wooden circle of a wheel that secures the spokes and makes contact with the ground (or supports an iron tire).

Unlike general terms for "wheel" (輪 or 車), this glyph specifically identifies a component of the wheel's anatomy. It frequently appears alongside other chariot-component glyphs: 轂 (hub), 輻 (spokes), and 軸 (axle). Its use typically signals a focus on physical construction, repair, or structural failure.

In later traditions, this term is occasionally collapsed into the general reading for "wheel" (輪). Simplified variant: U+2B413.

Due to its complexity, it may be confused with other 車-radical glyphs in cursive or weathered inscriptions.

In formal or ancient contexts, the choice of 輮 over 輪 is typically an intentional act of precision. If a passage concerns the physical integrity of a vehicle, this is the primary candidate for "rim."