4pole High Torque Motor

By applying 4-pole magnet, effective magnet density area is enlarged, and the torque constant is greatly enhanced.

4pole High Torque Motor

Features

Effective magnet density area: +30% (Namiki test result)
Total magnetic flux increased +30% from 2 pole magnet.
Torque constant: +60% (Namiki test result)
When running with the same road, current consumption is 35% less than 2-pole magnet motor.
Mechanical time constant: -60% (Namiki test result)
With enhanced torque constant, response speed is also improved by 40%.

As a pioneer in coreless motors, Namiki has pursued development of high torque motors. Generating high torque by enlarging the magnet or inputting a large current has its limitations in terms of heat generation and magnet materials. Namiki tried to increase torque by increasing number of magnet poles form 2 to 4.
By applying a 4-pole magnet, the effective magnet density area is enlarged. As a result, it contributed to a higher torque constant and low current consumption. Moreover, it enhanced mechanical time constant, so even the response speed became quicker.
Using diamond processing technology, a 4-pole magnet processing method has been established in Namiki.

Brushed Motor

Products, PDF Dia.
[mm]
Length
[mm]
Nominal
Voltage
[V]
Nominal No-load Stall Mecha
nical
time
constant
[ms]
Max.
effici
ency
Torque
[mNm]
Speed
[rpm]
Current
[mA]
Output
Power
[W]
Speed
[rpm]
Current
[mA]
Torque
[mNm]
Current
[A]
C4S10-13XX 10 13 4.7 0.28 13500 136 0.7 16300 28 1.66 0.66 4.9 63

Brushless Motor

Products, PDF Dia
[mm]
Length
[mm]
Nominal
Voltage
[V]
Nominal No-load Stall Mecha
nical
time
constant
[ms]
Max.
effici
ency
Torque
[mNm]
Speed
[rpm]
Current
[mA]
Output
Power
[W]
Speed
[rpm]
Current
[mA]
Torque
[mNm]
Current
[A]
B4S12-2108
with Encoder
12 21 12.0 11.1 13111 277 4.5 15320 55 11.1 1.59 3.5 66.3
B4S12-2109
with Encoder
15.0 11.6 16646 279 5.9 19300 56 11.6 1.68 4.2 66.8
B4S22-32XX
with Encoder
with Planetary gear
22 32 24.0 9.0 4900 255 11.2 5540 34 77.15 1.93 4.0 75

Motor model search

You can search for our motors according to your requirements such as size or characteristics.

Contact



*Click here for detailed inquiries.
*If you cannot find the contact form, please click here.
☎

Mon-Fri 9:00-17:00 JST+81-3-5390-7620

✉

Online Contact