Bental Industries offers its customers high performance DC brushless servo actuation systems. The gear motors are based on high energy Samarium Cobalt magnet technology. The gear motors consist of a DC brushless motor, integrated gear (ratio 1:30/1:50), fail-safe brake and brushless tacho-generator. These heavy-duty systems meets the harsh condition requirements for aviation and aerospace applications and is built to MIL standards.

Applications

bul1_1 Actuation of flight control units

bul1_1 Simulations and targeting devices

bul1_1 Precision servo system

Features

bul1_1 Operating temperature: -40° ÷ 70°C

bul1_1 Storage temperature: -40° ÷ 85°C

bul1_1 Max.winding temperature: 180°C

bul1_1 Insulation class: H

Performance

Specifications Unit Motor + Gear 1 :50 Motor + Gear 1 :30

 (1) Rated Speed rpm See Graphs See Graphs

Rated Torque (1) Nm See Graphs See Graphs

Peak Torque Nm 50 50

Paek Current A 4.5 7.5

Supply Voltage Vdc 240 240

Toque Sensitivity (Kt) (1) Nm/A 0.25 0.25

Terminal Resistance  (1) Ω 3.5 3.5

Inductance mH 3 3

Torsional Stiffness @ 12.5 Nm Nm/min 0.9 0.9

Backlash Arc/min 10 10

Rotor's Inertia Kgm² 1.25 · 10-4  1.25 · 10-4

Actuator Weight Kg 3 3

Tacho-generator - Built in

Voltage Sensitivity (1) V/rad/sec 0.035 0.035

Voltage Ripple (Peak ÷ average) % 18.5 18.5

phase Terminal Resistance (1) Ω 7 7

Braek - Built in 25 25

Torque Nm 0.6 0.6

Operating Voltage Vdc 15 ÷ 28 15 ÷ 28

Terminal Resistance (1) Ω 94 94

Notes

(1) @ 25ºC ambient