How Portescap empowers humanoid robots

Based on the provided excerpt: Portescap, part of Regal Rexnord, leverages decades of expertise in miniature motion systems from high-performance medical and industrial applications to support a new wave of robotics OEMs as they move from prototype to production.

For teams building humanoid robots, which motion-system priorities (e.g., torque density, efficiency, durability) matter most when scaling to production?