Named after the silicon controlled rectifiers that are at the heart of these controls, an SCR drive is the most common type of generalpurpose drive for direct current motors.
Self-Locking:
The inability of a gear reducer to be driven backwards by its load. Most general purpose reducers are not self-locking.
Service Factor for Gearing:
A method of adjusting a reducer’s load carrying characteristics to reflect the application’s load characteristics. AGMA (American Gear Manufacturers Association) has established standardized service factor information.
