Graupner,COMPACT 350 S 8,4 V,7712

COMPACT 350 S 8,4 V Graupner 7712 GRAUPNER COMPACT BRUSHLESS motors.
A range of high-performance BRUSHLESS motors. The impressive feature of this series of power plants is their enormously high torque, and it is in direct-drive applications that they show their full power potential. GRAUPNER COMPACT motors are brushless external-rotor (out-runner) types, i.e. the outer motor jacket rotates and drives the motor shaft. This design principle resultsin ultra-compact electric motors capable of an outstanding performance without recourse to a gearbox. An additional advantage: the weight of GRAUPNER COMPACT motors is very low compared to that of conventional motors.

Ultra-light GRAUPNER COMPACT motors with weights below 45 g, i.e. less than a SPEED 300 electric motor, and therefore an excellent choice for lightweight Depron or Styrofoam models. The preferred energy source is a 2-cell or 3-cell Li-Po pack.

Nominal voltage 8.4 V
Operating voltage range 7.2 ... 12 V
No-load speed 9750
Revs. / Volt 1160
No. of winds 24
Current drain at max. efficiency* 6 ... 14 A
Maximum efficiency 84%
Permissible direction of rotation R and L
No. of poles 14
Overall length approx. 48 mm
Case length, excl. shaft 31 mm
Diameter approx. 35 mm
Free shaft length approx. 17 mm
Shaft diameter 4 mm
Weight approx. 76 g
Recommended propellers,Order No. 6053.400 and 1372.20.15 8.4 ... 12V or 6034.4 and 1336.23.12 7.2 ... 9.6V
Propeller adaptor 7690.9
Flex-hub -
Motor mount*** 1741
All-up model approx. 750 g
Recommended speed controller Compact Control 15 2891
* 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.