EC-max 40 Ø40 mm, brushless, 70 Watt, with Hall sensors

Part number 283869

EC-max 40 Ø40 mm, brushless, 70 Watt, with Hall sensors
Price scales Quantity Price per unit
Prices excluding VAT and shipping costs 1-4 £ 316.73
5-19 £ 244.73
20-49 £ 182.00
from 50 On request


Technical illustrations

Information: Drawings are not to scale.

Values at nominal voltage
Nominal voltage 48 V
No load speed 9030 rpm
No load current 173 mA
Nominal speed 7610 rpm
Nominal torque (max. continuous torque) 94.2 mNm
Nominal current (max. continuous current) 2.02 A
Stall torque 636 mNm
Stall current 12.7 A
Max. efficiency 78 %
Terminal resistance 3.78 Ω
Terminal inductance 0.592 mH
Torque constant 50 mNm/A
Speed constant 191 rpm/V
Speed / torque gradient 14.4 rpm/mNm
Mechanical time constant 7.73 ms
Rotor inertia 51.2 gcm²
Thermal data
Thermal resistance housing-ambient 4.63 K/W
Thermal resistance winding-housing 0.542 K/W
Thermal time constant winding 4.28 s
Thermal time constant motor 926 s
Ambient temperature -40...+100 °C
Max. winding temperature +155 °C
Mechanical data
Bearing type ball bearings
Max. speed 12000 rpm
Axial play 0 mm, at radial load < 10 N
0.14 mm, at radial load > 10 N
Max. axial load (dynamic) 8 N
Max. force for press fits (static) 211 N
(static, shaft supported) 5000 N
Max. radial load 80 N, 5 mm from flange
Other specifications
Number of pole pairs 1
Number of phases 3
Number of autoclave cycles 0
Weight 460 g
  • Operating Range

    Continuous operation range
    Short term operation range


The new maxon EC-max program picks up the ideology of the successful A-max and RE-max motors. The electronically commutated DC motors are based on the same parts platform idea, creating a wide market-oriented range in the modular system with gearheads, sensors and brakes.