... -12V, 20-250rpm (3)Dimension(mm): 12X10X15 (4)Normal Use: Door lock, personal care Gear motor ZFF-N20GRX is a Precise ... motor with gearbox. It is widely used in Electronic Lock, door lock, Audio and visual Equipment, precision instruments, Toys, models, health and ... (Approximate): 9.5g4. Configuration is below: Gear Motor for Electronic door lock