What Is the Correct Torque for Coupling Bolts?

Coupling bolt torque is one of the most overlooked specifications in coupling installation and maintenance. In the rush to reassemble after a coupling repair, bolts are frequently tightened by feel rather than by torque wrench — and the feel method is unreliable by a...

How to Measure a Shaft Coupling for Replacement

Measuring a shaft coupling correctly for replacement is a skill that saves significant time and cost. The wrong measurement approach leads to ordering the wrong coupling ¡ª then waiting for a reorder while the machine sits idle. The right approach ¡ª knowing which...

How to Remove a Stuck Coupling Hub from a Shaft

A coupling hub that will not come off a shaft is one of the most frustrating and time-consuming problems in rotating machinery maintenance. What should be a 30-minute coupling replacement turns into a multi-hour or multi-day extraction exercise, delaying pump, motor,...