Coreless Brushed Vibration Motor Manufacturer

Coreless vibration motors we are currently mass-producing, sorted by diameter size, Φ3.2mm to Φ12mm diameter vibrator motors match different sizes of eccentric mass.
Eccentrics usually have two sizes, radius and length, if you have special needs, you can contact us by the form below to get in touch. If you want more coreless motor size options, you can click here.
The design and customization of micro vibration motors are highly sophisticated, allowing them to meet specific application demands. Manufacturers like Precision Microdrives offer a range of sub-Ø60 mm DC motors, which can be extensively customized in terms of size, material, shape, and the number of eccentric masses. This customization helps in tuning the vibration frequency and amplitude to suit particular applications.
In terms of internal construction, micro vibration motors are available in two primary types: coin (or flat) and cylinder (or bar). The coin-type motors are typically used in applications requiring thinner, more compact designs. They operate by displacing a weight attached to a rotor, which interacts with a ring magnet and coils to produce vibration. On the other hand, the cylinder or bar-type motors feature an off-centered weight on the motor's shaft, creating an unbalanced force that causes the motor to wobble, thereby generating vibration. This wobble can be adjusted by changing the mass of the weight, its distance from the shaft, or the motor's spinning speed.

Eccentric Rotating Mass Vibration Motors

Eccentric Rotating Mass vibration motor is also called ERM or pager motor.
The small vibrating motor is a coreless motor or a brush dc motor thoes are equipped with eccentric mass(fan or round shape), When the motor is working, The rapid rotation of the eccentric produces centrifugal force and then will have vibrating. This vibration can be used for informs users of getting new messages or calls. It's a second way of reminding besides sound alert, learn more.
This kind of vibrating alert had been used for many applications, such as wearable devices, pagers, smart phones, handsets... Cylindrical vibrating motors are the best choices for many wearable applications just because of their small compact sizes and enclosed vibration mechanism. They are great for haptic feedback, particularly in handheld devices.
It was designed for wearable devices that requires vibration  feedback for alerting instead of physical buttons. Comparing with other ERMs, cylindrical vibration motor are more compact and convenient to use.
These motors are engineered to be reliable and cost-effective, with potential customizations in motor windings, wire leads, and connectors to match performance requirements and integration needs. Additionally, the durability of these motors is enhanced by selecting appropriate bearings, lubricants, and brush materials, considering the operational environment and expected lifespan.
Micro vibration motors are pivotal in enhancing user interaction with electronic devices by providing a physical response to digital inputs, which is crucial in today's touch-centric communication era.