Eccentric Rotating Mass Vibration Motor Supplier

Buy small vibration motors

If you’re sourcing for ERM and LRA vibration motors manufacturer, NFP-Motor is the right place. No agent fees, because we are the source manufacturers of small vibration motors.

Eccentric rotating mass vibration motors are made of two parts, the brushed coreless DC motor and a eccentric rotating mass. This kind of motor have many advantages: high efficiency, low starting torque, low noise, it’s a kind of precision microdrives. When the coreless motor is mounted with eccentric rotating mass onto shaft, drive motor become vibration motor.

The vibration force is depended on speed of the motor and the weight of eccentric mass. Generally the rated voltage is 1.5V, 3V DC.

ERMs include coin vibration motors and pager motors, another small vibration motor is the Z-direction linear resonant actuators. All these three kinds for vibrator motor can provide sense of touch, however different form factors.

When in supermarket, hearing loss, congenital disability, how to get vibrating alert? Use vibration feedback to replace sound remind is proper solution.

This kind of vibration alert is most widely used in mobile phones and pagers. If you are in an important meeting, it can alert you in a more humanized way. Instead of a rough way through the loudly sound. When you receive a message or a call request, the vibrating reminder is an excellent way as a supplement the sound.

Eccentric rotating mass vibration motor working principle

The principle of erm vibrates like an incomplete fan blade. The motor uses a eccentric rotating mass to rotate at a high speed inside the mobile phone to generate vibrations. The eccentric wheel size used in the phone is very small.

When the motor is rotating, eccentric mass will make a circular motion to generate centrifugal force. The rapid change of the force will generate vibrations.

Cylindrical Vibrators (ERM type) also called pager motor that are always used for handle devices for vibration alerting. The pager motors rely on the rotation of an unbalanced load to create vibration effects. They are more recently being used for haptic feedback as well as vibration alerting.

Our range of vibration motor’s have been developed primarily with communication application such mobile phones and pagers in mind. The range is widely developing to meet the demand for smaller, more powerful and low current consumption motors.

All our erm vibration motor

Most of the following micro vibration motors are in stock, and you can order small quantity samples for prototype application. Some of the cell phone vibration motor are designed with or without connectors, and different wire lengths. If you’re not interesting in the cylindrical erm motor, the coin type vibration motor is another options.

Still can’t find ideal motors?

The electrical parameters of the motor can be adjusted. For example, the two main factors determining the vibration force: the size of the pager motor eccentric mass and the speed requirement. , voltage, current can be adjusted according to customer needs. Some encapsulated vibration motors adding terminals connectors, which are our customized products according to different customers. You can also contact us in the bottom contact form to ask for your needs.

If you want a custom lead wire connection of the  water resistant vibration motors. Such as alternate lead wire length & strip lengths, with a connector (e.g. Molex, JST). You can contact us from the footer form, tell us your need. Any problems will be taken seriously and will be answered professionally, so pls do not hesitate to contact us by the footer form.