Specifications
Information: Drawings are not to scale.
| Values at nominal voltage |
| Nominal voltage |
4.5 V |
| No load speed |
11700 rpm |
| No load current |
18.8 mA |
| Nominal speed |
4390 rpm |
| Nominal torque (max. continuous torque) |
0.937 mNm |
| Nominal current (max. continuous current) |
0.282 A |
| Stall torque |
1.55 mNm |
| Stall current |
0.438 A |
| Max. efficiency |
63 % |
| Characteristics |
| Terminal resistance |
10.3 Ω |
| Terminal inductance |
0.264 mH |
| Torque constant |
3.53 mNm/A |
| Speed constant |
2710 rpm/V |
| Speed / torque gradient |
7880 rpm/mNm |
| Mechanical time constant |
20.3 ms |
| Rotor inertia |
0.246 gcm² |
| Thermal data |
| Thermal resistance housing-ambient |
44.5 K/W |
| Thermal resistance winding-housing |
15 K/W |
| Thermal time constant winding |
5.03 s |
| Thermal time constant motor |
267 s |
| Ambient temperature |
-30...+65 °C |
| Max. winding temperature |
+85 °C |
| Mechanical data |
| Bearing type |
sleeve bearing |
| Max. speed |
14000 rpm |
| Axial play |
0.05 - 0.15 mm |
| Radial play |
0.012 mm |
| Max. axial load (dynamic) |
0.15 N |
| Max. force for press fits (static) |
15 N |
| (static, shaft supported) |
70 N |
| Max. radial load |
0.4 N, 4 mm from flange |
| Other specifications |
| Number of pole pairs |
1 |
| Number of commutator segments |
7 |
| Number of autoclave cycles |
0 |
| Product |
| Weight |
12 g |
| | | Continuous operation range
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| | | Short term operation range
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Description
maxon A-max motors are an innovative range of high-quality DC motors, equipped with powerful AlNiCo permanent magnets. The “heart” of our motors is the ironless maxon winding, that has been tested millions of times over. This is the latest technology for compact, powerful and low-inertia drives.
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