This Flat 1034 Mobile Phone Vibration Motor is a shaftless vibration motor is fully-enclosed with no exposed moving parts. Its small size (10 mm diameter, 3.4 mm height) and shaftless design mean you can mount it on a PCB or even place it in a pocket to add quiet, haptic feedback to your project.
The motor has a 3M adhesive backing on it for easy mounting and 1.5″ leads for making quick connections. Polarity is not important; the motor can run CW or CCW.
This tiny, button-type, vibrating motor shakes with a vibration amplitude of 0.75g and draws approximately 60 mA when 3 V is applied to its leads.