What is a Gimbal Bearing and Why Does It Matter?

If you've spent any time poking around the back of a boat with an I/O motor, you've probably heard someone ask, "what is a gimbal bearing?" and wondered if it's something you should actually worry about. To put it simply, if you own a boat with a sterndrive—like a Mercruiser or a Volvo Penta—this little component is basically the unsung hero that keeps your engine's power actually reaching the propeller while allowing you to steer and tilt the drive. ...

February 13, 2026 · 6 min · Jami Gwendolyn