B2040N2B

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Description

1 Voltage V 12.0 12.0 9.0
2 Terminal resistance Ω 1.1 3.6 2.5
3 No-load speed rpm 15000 8000 6700
4 No-load current A 0.25 0.22 0.2
5 Stall torque mNm 79.6 41.7 41.2
6 Stall current A 10.9 3.3 3.6
7 Nominal torque mNm 7.6 7.6 10.2
8 Nominal speed rpm 13000 5900 4300
9 Nominal current A 1.3 0.8 1.1
10 Max. output power W 31 8.7 7.2
11 Max. efficiency % 72 55 58
12 Back-EMF constant mV/rpm 0.8 1.4 1.3
13 Torque constant mNm/A 7.5 13.4 12.1
14 KV Value rpm/V 1250.0 666.7 744.4
15 Speed/torque gradient rpm/mNm 188.5 192.1 162.7
16 Rotor inertia gcm² 2 2 2
17 Weight g 55 55 55
18 Thermal resistance housing-ambient K/W 16
19 Thermal resistance winding-housing K/W 3.5
20 Thermal time constant motor s 620
21 Thermal time constant winding s 4
22 Operating temperature range °C -40~+100
23 Thermal class of winding °C 155
24 Axial play mm 0.012
25 Radial play mm 0.008
26 Axial load dynamic N 5
27 Axial load static N 80
28 Radial load at 3 mm from mounting face N 29
29 No. of pole pairs 1
30 Bearings 2 ball bearings
31 Commutation Sensorless
32 Protection class IP20

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