Graupner,COMPACT 440 12 V,6522

COMPACT 440 12 V Graupner 6522 GRAUPNER COMPACT BRUSHLESS motors.
A new range of high-performance BRUSHLESS motors. The prime feature of the motors in this series is their enormously high torque, which shows its true potential in direct-drive applications. The new GRAUPNER COMPACT motors are brushless ‘out-runners´, i.e. the outer sleeve of the motor rotates, and drives the motor shaft directly. This design principle results in particularly compact electric motors which achieve outstanding performance values even without a gearbox. A further advantage is that the weight of GRAUPNER COMPACT motors is very low compared to conventional motors.

Nominal voltage 12 V
Operating voltage range 8.4 ... 16 V
No-load speed 8160
Revolutions / Volt 680
No. of winds 15.5
Current drain at max. efficiency* 24 ... 33 A
Max. efficiency excluding gearbox 84 %
Permissible directions of rotation R and L
No. of poles 14
Overall length 70 mm
Case length excl. shaft approx. 44 mm
Diameter 42.5 mm
Free shaft length approx. 17 mm
Shaft diameter 5 mm
Weight approx. 203 g
Recommended propellers,Order No. 1336.30.25 and 6045.5 9.6 ... 12V
Propeller adaptor 1141
Flex-hub -
Motor mount*** 1744
All-up model approx. 2000 g
Recommended speed controller Compact Control 50 2885
* Referred to operating voltage range. These values reflect the current state of technology, and may vary in the course of continued development.
Differences may occur according to the speed controller used.
** with press-fitted pinion
*** especially for power models