A-max 19 ∅ 19 mm, graphite brushes, 2.5 watt
M 1:1
Stock program Standard program Special program (on request)
Part Numbers
with terminals with cables
249982 249983 249984 249985 249986 249988 249989 249990 240133 352942 310977 352943 352944 352945 352946 352947 310980 249987
Motor Data
Values at nominal voltage 1 Nominal voltage 2 No load speed 3 No load current 4 Nominal speed 5 Nominal torque 7 Stall torque 8 Stall current 9 Max. efficiency Characteristics 10 Terminal resistance 11 Terminal inductance 12 Torque constant 13 Speed constant 14 Speed / torque gradient 15 Mechanical time constant
2.4 24 12400 10400 12200 8980 8850 9930 9930 8910 8470 292 158 114 66.1 51.9 44.6 35.7 26.3 18.6 11700 8350 9310 4750 4630 5670 5670 4520 4020 0.759 1.78 2.75 3.98 4.02 3.89 3.89 3.83 3.8 0.72 0.72 0.72 0.612 0.485 0.397 0.317 0.235 0.167 14.1 9.66 12.1 8.84 8.83 9.47 9.44 8.16 7.63 8.04 3.09 2.71 1.23 0.963 0.867 0.691 0.45 0.301 64 59 63 59 59 60 60 58 57 0.299 1.16 2.22 5.88 9.35 13.8 21.7 40 79.8 0.019 0.059 0.121 0.314 0.506 0.719 1.12 1.98 3.87 1.76 3.12 4.49 7.22 9.17 10.9 13.7 18.1 25.4 5440 3060 2130 1320 1040 874 699 526 377 925 1140 1050 1080 1060 1110 1110 1160 1180 24.9 25.1 24.4 24.5 24.4 24.6 24.7 25.4 25 2.57 2.1 2.21 2.17 2.2 2.12 2.12 2.09 2.02 3.6 6 7.2 9 12 15 18
V
rpm mA rpm mNm mNm A
6 Nominal current (max. continuous current)
A %
Ω
mH
mNm/A rpm/V rpm/mNm
ms gcm2
16 Rotor inertia
Specifications
Operating Range
Comments
19 Thermal time constant winding 20 Thermal time constant motor 21 Ambient temperature 22 Max. winding temperature Thermal data 17 Thermal resistance housing-ambient 18 Thermal resistance winding-housing Mechanical data (sleeve bearings)
n [rpm]
Continuous operation In observation of above listed thermal resistance (lines 17 and 18) the maximum permissible winding temperature will be reached during continuous operation at 25°C ambient = Thermal limit. Short term operation The motor may be briefly overloaded (recurring). Assigned power rating
21.3 K/W 10.5 K/W 11.0 s 201 s -30…+85°C +125°C
2.5 W
12000
249987
8000
23 Max. speed
0.05 - 0.15 mm 0.012 mm 12 000 rpm
4000
24 Axial play 25 Radial play 26 Max. axial load (dynamic) 27 Max. force for press fits (static) 28 Max. radial load, 5 mm from flange Mechanical data (ball bearings) 23 Max. speed 24 Axial play 25 Radial play 26 Max. axial load (dynamic) 27 Max. force for press fits (static) 28 Max. radial load, 5 mm from flange Other specifications 29 Number of pole pairs 30 Number of commutator segments 31 Weight of motor
1 N 80 N 2.7 N
0.1 0.3 0.4 1.0 2.0 3.0 4.0 5.0 M [mNm] I [A] 0.2 0.5
Modular System
Details on catalog page 46
0.05 - 0.15 mm 0.025 mm 12 000 rpm
Gear 428_GP 19 B 430_GP 22 A 432_GP 22 C 436_GS 24 A 476_GP 22 S 477_GP 22 S
Motor Control 550_ESCON Module 24/2 550_ESCON 36/2 DC
3.3 N 45 N 11.9 N
1 9
33 g
Values listed in the table are nominal. Explanation of the figures on page 92. Option Ball bearings in place of sleeve bearings
maxon DC motor 175
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