Ruland SPX-28-28-F Two-Piece Precision Shaft Coupling

Ruland SPX-28-28-F is a two-piece, clamp-style rigid shaft coupling that joins two 1.75" bore shafts with a 3.125" outside diameter and 4.5" overall length. Its precision-honed bores ensure tight collinearity, reducing misalignment and vibration in high-precision servo systems and shaft-to-shaft connections. The hardware includes a Nypatch anti-vibration coating for even seating and galling resistance, and the halves are designed with opposing hardware for a balanced load. Manufactured in the USA from black oxide steel, SPX-28-28-F tolerates -40°F to 350°F, weighs about 6.23 lb, and provides a rigid, gap-free coupling ideal for compact drive trains.