BRUSHLESS DR. SPEED21,5T star Graupner 97271

BRUSHLESS DR. SPEED21,5T star Graupner 97271

Nominal voltage: 7.2 V
Operating voltage range: 4.8 ... 12 V
Revolutions / V (kV) approx. 1900
No. of windings: 21.5T star
Current drain at maximum efficiency approx. at 7.2V: 12A
Current drain at maximum power approx. at 7.2V: 40A
Maximum power at 7.2 V: 130 W
Maximum power at 6 V: 90
Maximum power at 4.8 V: 60
Permissible direction of rotation: R and L
No. of poles: 2
Overall length approx. 70 mm
Case length approx. 52,5 mm
Diameter approx. 35,8 mm
Free shaft length approx. 15 mm
Magnet diameter: EFRA Stock
Shaft diameter at output: 3.175 mm
Weight approx. 165 g
Recommended reduction ratios with six cells: Crawler
Recommended speed controller: 7154