| 8A Series φ8mm x L16.8 Precious Metal Brushes |

| Motor Paramter | Motor Model | |||||||||||
| Values at nominal voltage | 8A1NA-011092 | 8A1NA-011011 | ||||||||||
| 1 | Rated voltage | V | 3.0 | 3.0 | ||||||||
| Free Load | 2 | No load speed | rpm | 47000 | 51100 | |||||||
| 3 | No load current | mA | 130 | 150 | ||||||||
| At Max. Efficiency | 4 | Max. efficiency | % | 68.00% | 67.00% | |||||||
| 5 | Speed | rpm | 39900 | 43318 | ||||||||
| 6 | Current | mA | 718 | 845 | ||||||||
| 7 | Torque | g.cm | 3.21 | 3.83 | ||||||||
| At Max. Output | 8 | Max. output | W | 2.57 | 3.3 | |||||||
| 9 | Speed | rpm | 24500 | 25500 | ||||||||
| 10 | Current | mA | 2090 | 2421 | ||||||||
| 11 | Torque | g.cm | 10.65 | 12.57 | ||||||||
| At Stall | 12 | Stall current | A | 4052 | 4690 | |||||||
| 13 | Stall torque | g.cm | 21.29 | 25.13 | ||||||||
| Motor Constants | ||||||||||||
| 14 | Teminal resistance | Ω | 0.6 | 0.64 | ||||||||
| 15 | Torque constant | g.cm/A | 5.425 | 5.537 | ||||||||
| 16 | Speed constant | rpm/V | 17973 | 17605 | ||||||||
| 17 | Speed/Torque constant | rpm/g.cm | 2207 | 2033 | ||||||||
| Motor Characteristic | Typical Performance | ||||||||||||||||
| Thermal parameters |
| ||||||||||||||||
| 18 | Ambient temperature | -20~+65 | ºC | ||||||||||||||
| 19 | Max. permissible winding temperature | 85 | ºC | ||||||||||||||
| Mechanical parameters | |||||||||||||||||
| 20 | Max. penmissible No-load speed | 50000 | rpm | ||||||||||||||
| 21 | Max. axial load(dynamic) | 0.15 | N | ||||||||||||||
| Other parameters | |||||||||||||||||
| 22 | Number of pole pairs | 1 | |||||||||||||||
| 23 | Number of commutator segments | 3~5 | |||||||||||||||
| 24 | Weight | 3.9 | g | ||||||||||||||
| Remarks | |||||||||||||||||
| 1 | Rotation direction, wire specification and performance parameters can be | ||||||||||||||||
| made according to customer's requirement. | |||||||||||||||||
| 2 | Motor can be mounted with various shapes and sizes of eccentric weight which | ||||||||||||||||
| is made of iron, brass or ferro-alloy to become vibration motor. | |||||||||||||||||
| 3 | Dimension with "*" in the drawing can be adjusted according to customer's requirement. | ||||||||||||||||
| 1g=0.035oz 1inch=25.4mm 1g.cm=0.098mN.m 1oz=28.35g 1mm=0.0394inch 1mN.m=10.2g.cm | |||||||||||||||||
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