Set accoppiatore flessibile 3 pezzi da 1/2" a 3/4" L075 e ragno in gomma
(1/2" to 3/4" L075 Flexible 3-Piece L-Jaw Coupling Set. 2) 1/2" bore with 1/8" keyway and set screw on one coupling half; 3/4" bore with 3/16" keyway and set screw on the matching coupling half. (engine shaft 3/4" and the pump, 1/2".).