[cf. BUSH sb.2] The bush or box of a wheel. ? Obs.
1433. in Rogers, Agric. & Prices, III. 550/4. New bushel, /8; Iron to do., 1/-.
1730–6. Bailey, Bushels [of a Cart wheel] certain Irons within the Hole of the Nave, to preserve it from Wearing. [So Johnson.]
1864. Webster, Bushel, the circle of iron in the nave of a wheel.
