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The Latest and greatest from Blue Bird Precision. The BLS-M52B V2, High Voltage, Mega Torque, Helical Gears, Brushless Motor, Digital with Magnetic Hall Sensor The Powerful BLS-H51B just got better with the new Magnetic Sensored BLS-M52B!!! Smoother．More Precision．More Reliable & More Efficiency. Helical Gears for supreme strength and precision.
 
Magnetic Sensor (Hall effect sensor, no potentiometer) Soft Start Protection Over Voltage Protection Low Voltage Protection Locked Rotor Protection Temperature Protection Includes Aluminum Servo Arm
 
APPLICATIONS
Awesome for 3D Airplane, Jet & 1/5、1/8th Monster / Crawler / Off-road Car & Helicopter.
 
Performance Specifications
						Torque At 6.0V			   46.2 kg-cm / 641.7 oz-in							Torque At 7.4V			   55.7 kg-cm / 773.6 oz-in							Torque At 8.4V			   62.9 kg-cm / 873.6 oz-in							Speed At 6.0V			   0.12 sec / 60°							Speed At 7.4V			   0.10 sec / 60°							Speed At 8.4V			   0.09 sec / 60°			 
Protection Mechanisms
									Soft Start
			Protection
						Soft start to a neutral position.							Over Voltage Protection               			Over 9.0V drive the protection mode and 8.4V return to normal mode.							Low Voltage Protection			Lower than 4.0V, drive the protection mode and 4.5V return to normal mode.							Locked Rotor Protection                  			Stall in 5 sec, output torque goes down.							Temperature Protection			Overheat 85 degrees C (185 degrees F), drive the protection mode and down 75 degrees C (167 degrees F) return to normal mode.							Lose Control Protection			When losing the transmitter signal, that servo will be back to the neutral position immediately and lock.			 
Power Supply
						Operating Voltage Range			4.5V ~ 8.5V ( 4 ~ 6 Cell Ni-MH or 2S HV Li-Poly / 2S Li-Fe)			 
Control Specification 
						Control System			Digital Controller / AD 12-Bits Resolution ( 4096 Steps )			Frequency：Up to 333Hz / Neutral：1500us or 1520us							Dead Band Width			0.001ms ( Default：1us)							Potentiometer (Variable    Resistor)			Magnetic Sensored 【Hall Sensor】			 
Mechanical Specifications
						Ball Bearing			   Dual, Stronger Ball Bearings							Gear			   All Stainless Steel Helical Gears							Outside Case			   Full One-Piece Aluminum CNC Casing							Motor			   High-Efficiency Japanese Brushless Motor							Horn / Gear Spline			   25 Teeth ( Same as F-Type )			 
Dimensions and Weight
						Dimension (mm)			   40.5 x 21 x 38.5 mm / 1.59 x 0.83 x 1.52 in							Weight (gram)			   83.0 ± 1 grams / 2.93 oz