XR20/120 pages

XR20/12
50 Nm
25 Nm
1.2 Kw
450 rpm (36v)

Motor
Constants

Symbol

Unit

Value

Motor
Ratings

Unit

Value

Voltage

Ke

V/krpm

47.7

Voltage

Volts

36

Torque

Kt

Ncm/Amp

0.44

Current

Amps

48

RL-L

Ohm

0.74

Torque

Nm

25

LL-L

mH

0.54

Speed

RPM

450

Power

Watts

1200

XR20/12

Peak Torque
Cont. Torque
Cont. Power
Speed

The Printed Motor Works XR20/12 brushless DC hub motor is
specially designed to withstand water ingress and has a
pressure relief system to allow for the thermal expansion of the
pressure compensating internal oil. The unit is designed to have
a propeller attached to the motor hub and direct drive the craft.
The system is totally gearless, and is totally submersible to
10m*.

Line-Line
Resistance
Line-Line
Inductance

General Benefits
•
•
•
•
•
•

Efficient electric drive system
No losses through inefficient gears
Compact package
Design flexibility for system designer
Winding design flexibility (Speed & Voltage)
Totally submersible

* Customer test

+44 (0) 1420 594 140
sales@printedmotorworks.com

Newman Lane, Alton
Hampshire GU34 2QW, UK

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