gearless

adj.

无（传动）齿轮的，无传动装置的；

Modeling of gearless wind power transfer
Modeling of gearless wind power transfer
Drive systems for high-speed gearless elevators
Direct modular multi-level converter for gearless low-speed drives
Operation strategies for stability of gearless wind power generation systems
An axial-flux permanent-magnet generator for a gearless wind energy system
An axial-flux permanent-magnet generator for a gearless wind energy system
PSCAD/EMTDC-Based Modeling and Analysis of a Gearless Variable Speed Wind Turbine
High torque gearless actuation at low speeds for swing gate, roll-up gate, slide gate, and vehicular barrier operators
Robust Low-Cost Control Scheme of Direct-Drive Gearless Traction Machine for Elevators Without a Weight Transducer