EC 90 flat Ø90 mm, brushless, 90 Watt, with Hall sensors

Part number 323772

EC 90 flat Ø90 mm, brushless, 90 Watt, with Hall sensors

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Technical illustrations

Information: Drawings are not to scale.

Values at nominal voltage
Nominal voltage 24 V
No load speed 3190 rpm
No load current 538 mA
Nominal speed 2590 rpm
Nominal torque (max. continuous torque) 444 mNm
Nominal current (max. continuous current) 6.06 A
Stall torque 4940 mNm
Stall current 70 A
Max. efficiency 83 %
Terminal resistance 0.343 Ω
Terminal inductance 0.264 mH
Torque constant 70.5 mNm/A
Speed constant 135 rpm/V
Speed / torque gradient 0.659 rpm/mNm
Mechanical time constant 21.1 ms
Rotor inertia 3060 gcm²
Thermal data
Thermal resistance housing-ambient 1.57 K/W
Thermal resistance winding-housing 2.7 K/W
Thermal time constant winding 34.1 s
Thermal time constant motor 234 s
Ambient temperature -40...+100 °C
Max. winding temperature +125 °C
Mechanical data
Bearing type ball bearings
Max. speed 5000 rpm
Axial play {0} {1}, at radial load {2} {3} {4}
0.14 mm, at radial load > 15 N
Max. axial load (dynamic) 12 N
Max. force for press fits (static) 183 N
(static, shaft supported) 8000 N
Max. radial load 68 N, 5 mm from flange
Other specifications
Number of pole pairs 12
Number of phases 3
Number of autoclave cycles 0
Weight 600 g


Thanks to their flat design, the brushless EC flat motors are exactly the right drive for many applications. The well-conceived, simple engineering allows mainly automated production which results in a favorable price.