Product overviewCoreless motor A16B series (outer diameter φ16 mm). The A16B series includes multiple sub-models (for example A16B-33) covering a range of lengths, applied voltages and performance points. Typical applications include security electronic locks and other compact precision devices. Free downloads for outline drawings and CAD data are available from the product materials section of the site.
Highlighted model - A16B-33 (example)Product Specifications (A16B-33)Model Name | Outer Diameter [mm] | Length [mm] | Applied Voltage [V] | Terminal resistance [Ω] | Rotation Speed [r/m] | No Load Current [mA] | Startup Current [mA] | Max Torque [mN・m] | Efficiency [%] | Output [W]
A16B-33 | 16 | 19.2 | 12.0 | 11.80 | 14,200 | 22 | 1,017 | 7.86 | 72.7 | 2.92
Product Series - selected A16B models (table)Model | Outer Diameter [mm] | Length [mm] | Applied Voltage [V] | Terminal resistance [Ω] | Rotation Speed [r/m] | No Load Current [mA] | Startup Current [mA] | Max Torque [mN・m] | Efficiency [%] | Output [W]
A16B-33 | 16 | 19.2 | 12.0 | 11.80 | 14,200 | 22 | 1,017 | 7.86 | 72.7 | 2.92
A16B-31 | 16 | 19.2 | 5.0 | 6.25 | 9,000 | 25 | 800 | 3.98 | 67.8 | 0.94
A16B-29 | 16 | 19.2 | 4.5 | 2.20 | 18,600 | 35 | 2,045 | 4.57 | 75.5 | 2.22
A16B-27 | 16 | 19.2 | 4.5 | 1.54 | 17,930 | 28 | 2,922 | 6.87 | 81.4 | 3.23
A16B-25 | 16 | 19.2 | 5.0 | 21.7 | 4,900 | 9 | 230 | 2.07 | 64.4 | 0.27
A16B-22 | 16 | 19.2 | 12.0 | 32.5 | 11,000 | 6 | 369 | 3.72 | 76.1 | 1.07
A16B-10 | 16 | 19.2 | 12.0 | 17.0 | 18,000 | 12 | 706 | 4.34 | 75.6 | 2.05
A16B-09 | 16 | 19.2 | 12.0 | 80.0 | 8,100 | 4 | 150 | 2.01 | 70.0 | 0.43
A16B-07 | 16 | 19.2 | 4.5 | 4.7 | 10,600 | 15 | 957 | 3.76 | 76.5 | 1.04
A16B-04 | 16 | 19.2 | 4.5 | 3.5 | 13,500 | 16 | 1,286 | 3.99 | 78.9 | 1.41
A16B-03 | 16 | 19.2 | 4.5 | 7.0 | 12,300 | 17 | 643 | 2.13 | 70.1 | 0.69
Customizable items- Gear head
- Lead pin
- Lead wire
- Grounding terminal
NotesThese models are part of the A16B family (φ16 mm outer diameter). Performance values shown are manufacturer specifications for each sub-model (rotation speed, currents, torque, efficiency, output, terminal resistance and applied voltage). For outline drawings and CAD downloads consult the product materials provided for each model.
Technical specifications- Series: A16B
- Outer diameter: 16 mm
- Typical lengths: 19.2 mm (varies by sub-model)
- Applied voltage: various (examples: 4.5 V, 5.0 V, 12.0 V depending on sub-model)
- Terminal resistance: model-dependent (examples: 1.54 Ω to 80.0 Ω shown)
- No-load rotation speed: up to ~24,800 r/m for some series members; A16B-33 = 14,200 r/m
- No-load current: model-dependent (single-digit to several tens of mA)
- Startup current: model-dependent (hundreds to thousands of mA)
- Maximum torque: model-dependent (approx. 0.27 mN·m up to ~7.86 mN·m in listed models)
- Efficiency and output: model-dependent (examples: A16B-33 efficiency 72.7%, output 2.92 W)
- Available customizations: gear head, lead pin, lead wire, grounding terminal