Micro Motors(Ultra Compact Motor)

What is a micro motors(ultra compact motor)?

If a "compact motor" has an output of 75W or less, the output of a "micro motor" is generally 3W or less. At this size, even a small-capacity power source such as a dry cell battery can run the motor. Therefore, there are many DC driven micro motors. There are not any AC micro motors that meet the above definition, which is most likely because at high currents, such as 100V, there is the risk of the mechanisms inside the miniaturized motor catching fire or short-circuiting.
Adamant Namiki has successfully developed the world’s smallest φ0.6mm brushless motor, and the world's smallest φ1.5 geared motor. Since the components of micro motors are tiny, and the contact life is limited in configurations that use a brush and commutator, reliability is improved by making the motor brushless. The achievements made addressing such technological challenges are attracting attention in cutting-edge fields such as medical care, robotics, and measuring instruments. One example is the hollow shaft motor, which we’ve used in the Optical Inner Wall Metrology System we launched on the market.

Specifications: standard brushless motor

Dia. [mm] Length [mm] Products Nominal Voltage [V] Nominal Values No-Load Stall Mecha-nical time constant [ms] Max. effici-ency
[%]
Option
Torque [mNm] Speed [rpm] Cur-rent [mA] Output [W] Speed [rpm] Cur-rent [mA] Torque [mNm] Current [A] Connection Bearing
Term-inals lead-wire sleeve BB
4 8 BMN04-0829 3.0 0.01 24,200 53 0.04 37,000 28 0.04 0.10 9.2 22 A (sensorless)
BMN04-0829
Dia.[mm]
4
Length[mm]
8
定格電圧[V]
3.0
定格:トルク[mNm]
0.01
定格:回転数[rpm]
24,200
定格:電流[mA]
53
定格:出力[W]
0.04
無負荷:回転数[rpm]
37,000
無負荷:電圧[mA]
28
起動:トルク[mNm]
0.04
起動:電流[A]
0.10
機械的時定数[ms]
9.2
最大効率
22
オプション:入力形状:端子
A (sensorless)
オプション:入力形状:リード線
A (sensorless)
オプション:ベアリング:スリーブ
オプション:ベアリング:ボール

Catalog model

BMN04-0829

Application: hollow shaft micro motor DBL024


Adamant Namiki’s micro motor DBL024 belongs to the world’s smallest class of hollow shaft motors. Since optical fibers can be run through the hollow shaft, it is possible to construct ultra-compact optical actuators, which are expected to contribute to breakthroughs in leading medical and industrial fields, such as OCT* and endoscopy.
Based on this hollow shaft motor technology, Adamant Namiki developed an Optical Inner Wall Metrology System for use in the industrial measurement field. This system is capable of 3D measurement of the inner circumference of small-diameter holes in components – data which was previously limited and challenging to collect.
Adamant Namiki aims to meet the needs of cutting-edge medical and industrial fields with our hollow shaft micro motor.

*Optical Coherence Tomography = technology that uses near infrared rays to take tomographic images of samples.

Examples of potential applications:

  • Medical / analytical measuring device
  • Development of evaluation technology for internal state and progression of wear of important equipment such as infrastructure equipment, vehicles, and aircraft
  • Construction of ultra-compact manipulators that have limited wiring space

Specifications: hollow shaft micro motor

Dia. [mm] Length [mm] Products Nominal Voltage [V] Nominal Torque[mNm] Terminal Resistance [Ω] Back EMF Constant [mV/rpm] Stall Speed [rpm] Direction of Totation Insletion Resistance
Torque [mNm] Current [A]
2.4 5 DBL024-05XX 4.0 0.23 89 0.024 0.01 0.044 100-6,000 CW/CCW OL
BMN04-05XX
Dia.[mm]
2.4
Length[mm]
5
Nominal Voltage[V]
4.0
Nominal: Torque[mNm]
0.23
Terminal Resistance[Ω]
89
Back EMF Constant[mV/rpm]
0.024
Start-Up:Torque[mNm]
0.01
Start-Up:Currect[A]
0.044
Speed[rpm]
100-6,000
Direction of Totation
CW/CCW
Insletion Resistance
OL

Catalog

DBL024-05XX

Inquiry

*Click here for detailed inquiries.

お問合せフォーム