"Use a flex coupling to mount your engine to pump. Synthetic rubber inserts between the coupling halves. When ordering, get one to fit the motor and one to fit the pump shaft diameter. Order two halves plus insert for complete coupling. Fits model LO 99 and L 100 series up to 23 HP at 3600 RPM. Made for 2 bolt brackets. Size: 1in. Keyway: 1/4 x 1/8 O. D.: 2 1/2in." |