This article provides an in-depth comparison between Direct Drive (DD) motors and harmonic rotary actuators, covering their transmission principles, advantages and disadvantages, and typical application fields.

The HPG zero backlash gearbox was developed to address this challenge. Through an innovative self-compensating backlash elimination structure, HPG combines precision, torque capacity, rigidity, and long-term stability, creating a new generation of high-performance transmission technology for demanding industrial applications.

South Korea's DRAM and NAND exports surged in May 2026, with DDR5 prices reportedly surpassing gold. Rising memory costs are increasing BOM pressure on AI edge devices, smart sensor modules, and robotics manufacturers, accelerating demand for cost-efficient integrated solutions and more resilient supply chains.

This article begins with the principle of cogging torque in frameless motors, explains how slotless core technology eliminates torque ripple and vibration, and highlights the three major breakthroughs achieved by frameless torque motors in 2025: increasing low-speed torque through high pole-pair designs exceeding 32 pole pairs, adopting hollow frameless structures for compact and lightweight designs, and utilizing high-grade NdFeB permanent magnets to enhance torque density.