DC motor A12B-37

9 Vcorelesscustom

Series overview
Coreless motor A12B series (outer diameter φ12 mm). The series includes multiple sub-models optimized for different applied voltages, speeds and torque characteristics. Available customizable items: gear head, lead pin, lead wire, grounding terminal.

Product series - key models (tabular)
Model Name | Outer Diameter [mm] | Length [mm] | Applied Voltage [V] | Terminal resistance [Ω] | No-load rotation speed [r/min] | No-load current [mA] | Startup current [mA] | Startup torque [mN·m] | Max Efficiency [%] | Max Output [W]
A12B-24 | 12 | 15.5 | 4.5 | 4.1 | 23,800 | 45 | 1,100 | 1.83 | 63.6 | 1.14
A12B-37 | 12 | 18.1 | 9.0 | 65.2 | 8,860 | 5 | 138 | 1.24 | 65.6 | 0.29
A12B-36 | 12 | 18.1 | 12.0 | 122.4 | 10,240 | 4 | 98 | 1.01 | 63.7 | 0.27
A12B-35 | 12 | 18.1 | 3.0 | 24.0 | 5,100 | 8 | 125 | 0.62 | 55.8 | 0.08
A12B-33 | 12 | 18.1 | 3.0 | 40.0 | 3,600 | 5 | 75 | 0.52 | 55.0 | 0.05
A12B-32 | 12 | 18.1 | 4.5 | 2.4 | 19,250 | 35 | 1,870 | 4.02 | 74.5 | 2.03
A12B-27 | 12 | 18.1 | 3.0 | 10.3 | 7,750 | 12 | 291 | 0.99 | 63.5 | 0.20

Individual product details (selected)
A12B-24 — Product Specifications
Model Name: A12B-24
Outer Diameter [mm]: 12
Length [mm]: 15.5
Applied Voltage [V]: 4.5
Terminal resistance [Ω]: 4.1
No-load rotation speed [r/min]: 23,800
No-load current [mA]: 45
Startup current [mA]: 1,100
Startup torque [mN·m]: 1.83
Max Efficiency [%]: 63.6
Output [W]: 1.14

A12B-37 — Product Specifications
Model Name: A12B-37
Outer Diameter [mm]: 12
Length [mm]: 18.1
Applied Voltage [V]: 9.0
Terminal resistance [Ω]: 65.2
No-load rotation speed [r/min]: 8,860
No-load current [mA]: 5
Startup current [mA]: 138
Startup torque [mN·m]: 1.24
Max Efficiency [%]: 65.6
Output [W]: 0.29

Customizable Items

• Gear head
• Lead pin
• Lead wire
• Grounding terminal

Applications / Notes
The A12B series covers a range of applied voltages (from low-voltage types ~3.0 V up to 12.0 V and beyond) and is suitable where a φ12 mm coreless motor form factor is required. Sub-models trade off speed, torque and efficiency depending on terminal resistance and applied voltage. Outline drawings and CAD data are indicated as available for download in the product documentation.

Technical characteristics / specifications

• Series: A12B (outer diameter φ12 mm)
• Available sub-models: A12B-24, A12B-37, A12B-36, A12B-35, A12B-33, A12B-32, A12B-27
• Key parameters per model: outer diameter, length, applied voltage, terminal resistance, no-load speed & current, startup current & torque, maximum efficiency, maximum output
• Customizable items: gear head, lead pin, lead wire, grounding terminal
• Typical use cases: medical, optical, hobby, security and industrial applications requiring small-diameter coreless motors