The servo KST BLS905X has the following advantages compared with the BLS805X: The brushless motor and the electronics are more powerful. Because of these facts and in connection with high quality ball bearings the BLS905X is a class higher than the BLS805X.

Due to this performance and the high positioning speed, the KST BLS905X HV is perfect for advanced 3D helicopter pilots.

Features
Hardened Steel Gears
Extreme torque and Excellent speed
CNC aluminium case
Brushless DC Motor
Two Ball Bearings

Specification
Item: BLS905X Brushless Tail Servo
Operating Voltage: DC6.0V-8.4V
Size: 40.50*20*37mm
Torque: 8Kgf.cm@8.4V / 7Kgf.cm@7.4V / 6Kgf.cm @6.0V
Speed: 0.035sec/60°@8.4V, 0.040sec/60°@7.4V, 0.045sec/60°@6.0V
Working Frequency: 760μs/560Hz
Temperature Range: -10℃……+65℃
Case Material: Aluminum Alloy
Motor Type: Brushless DC Motor
Gear Set Material: Hardened Steel
Position Sensor: Potentiometer
Case Dimensions: 40.5mm*20mm*38mm±0.2mm
Weight: 70g±10%
Ball Bearing: 2 BB