The micro vibration motors is divided into a coin vibration motor and cylindrical vibration motor . The flat vibration motor looks like a coin . It belongs to the DC brush motor . There is an eccentric wheel on the motor shaft . When the motor rotates , the center point of the eccentric wheel is not on the center of the motor , which makes the motor lose balance , Vibration caused by inertia . The cylindrical vibration motor is composed of a motor and an eccentric block . The motor is composed of a brushed DC micro motor , a brushless DC micro motor or a hollow cup motor , and the eccentric block is connected to the motor shaft . The main specifications of micro vibrator motor : Strong magnetism and general magnetism are distinguished , strong magnetism is strong , general magnetism is weak . Strong magnetism has a large moment while general magnetism has a small moment . Torque is the force of the motor . Distinguishing unit : g.cm . Anti-interference is the resistance of the motor to the surface resistance,plus EMC (EMC needs to be certified by professional institutions) such as:130SSTR—14160—38--EMC “130SSTR” means : model is 130 , “S” is strong magnetic , “STR "It is anti-jamming . "14160 means:0.14 copper wire , 160 windings . "38" means the length of the shaft , which is the length of the motor . "EMC" means EMC certification . The ordinary motors do not need to add "SSTR" . That is the magnetic motor is not resistant to interference . The main parameters of the micro vibration motors : 　　1, voltage (Based on the customer) 　　2, no-load current (current working after power-on) 　　3, speed (the speed per minute after power-on) 　　4, Blocking current (current that the motor is energized to stop working) 　　5, load current (current after the motor loads the object) 　　6, the load speed (the speed per minute after the motor loads the object), 　　7,torque (this is the power of the motor, referred to as torque). 　　Micro vibrator motor application Micro vibration motors are used in mobile phones, toys, and health massagers.

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