[f. BUSH sb.2 and v.3 + -ING1.]
1. The operation of fitting a hole with a bush. Also concr. = BUSH sb.2 1.
1794. Rigging & Seamanship, I. 154. Bushing is letting through the middle of a sheave a cylindrical piece of metal, with a hole through its centre, to admit the pin … on which the sheave turns.
1839. R. S. Robinson, Naut. Steam Eng., 8. The brass bushing of the strap.
1864. Webster, Bushing, a thimble; sometimes called a bush.
2. Watchmaking. See BOUCHON.
