Active Magnetic Bearings and the Future of Lubrication

Oil-free bearing concepts, such as active magnetic bearings, are increasingly presented as lubrication-free solutions for demanding industrial applications. At first glance this can look like a threat to the lubricant industry. I would argue the opposite: it is a positive signal that the market is moving toward reliability-driven tribology and lifecycle value.

The starting point is a change in how success is measured. For a long time it was counted in litres of lubricant sold, kilograms of grease produced and replacement components manufactured. Increasingly it is measured in uptime, energy efficiency, safety, waste reduction and lifecycle cost. That shift changes how almost every innovation in the field should be read.

There is a key distinction to be made: a lubricant-free component is not the same as a lubricant-free system. An active magnetic bearing may run without conventional lubrication, but it still relies on auxiliary, backup and touchdown bearings that need highly specialised lubrication, and it usually sits within a wider drivetrain of gearboxes, couplings and rolling element bearings that all manage friction, wear and load. The relevant question is therefore not whether one component can run oil-free, but how the whole machine system manages friction, energy loss and reliability over its full operating life.

Bearing innovation, long-life lubricants and condition monitoring are not competitors but partners, answering the same demand for lower friction, longer asset life and less waste. Sustainability is framed as a shared responsibility across the reliability chain, supported by the interaction of machine design, professional lubrication practices and data-driven decision-making.

The conclusion is an invitation rather than a defence. For the lubricant industry, the opportunity is not to defend consumption volume, but to lead on value through better selection, better application, better monitoring and better lifecycle outcomes.

Dennis Eijdenberg
Technical Manager, Interflon Global Headquarters