Features:​

Maximum packaging freedom, very low inductance variation, zero bearing friction loss.

Applications:​

Gimbals, medical handpieces, aerospace actuators, custom robot joints.

Materials / Structure:​

Laminated stator pack or slotless coil, rare-earth ring magnet rotor, epoxy binders.

Working Principle:​

Same PM synchronous principle, but rotor rides on customer-supplied bearings.

Installation:​

Requires engineered thermal path, shaft concentricity, demag-safe handling.

Precautions:​

No self-bearing; magnet rotor chips if dropped; avoid strong external fields.