Lovejoy 58557 Size LC090 Jaw Coupling Hub, Metric, 19 mm Bore, 53.594 mm OD, 6 mm x 2.8 mm Keyway: Spider Couplings: Amazon.com: Industrial & Scientific

GMAK Industrial on Instagram: "Understanding Love Joy Coupling Wear and Motor Health When a system fails, it’s rarely random — it’s a message. Today we’re talking about Lovejoy couplings — the simple but critical connectors that join your motor and pump shafts. When they wear out too quickly, it’s not just a bad part… it’s a warning sign. Excessive coupling wear often points to deeper mechanical issues — like bad motor bearings, misalignment, or vibration traveling through the shaft. Ignore it,