fc227

Greetings all,

Has anyone used these "HexTronik HX12K Standard Metal Gear Servo 55g / 10kg / .16sec" How reliable are they ? I would like to try them in a 50 CC sukoi. But I would like to know if anyone has had issues with them.

HX12K Servo : +Pulse Width Control 1500μsec Neutral
- Required Pulse : 3 - 5 Volt Peak to Peak Square Wave
- Operating Voltage : 4.8 - 7.2 Volts
- Operating Temperature Range : -20 to +60 Degree C
- Operating Speed (4.8V) : 0.20sec/60 degrees at no load
- Operating Speed (6.0V) : 0.17sec/60 degrees at no load
- Stall Torque (4.8V) : 9kg .cm
- Stall Torque (6.0V) : 11kg .cm
- Operating Angle : 45 Deg. one side pulse traveling 400μsec
- 360 Modifiable : Yes
- Direction : Clockwise/Pulse Traveling 1500 to 1900μsec
- Current Drain (4.8V) : 8.8mA/idle and 350mA no load operating
- Current Drain (6.0V) : 9.1mA/idle and 450mA no load operating
- Dead Band Width : 4μsec
- Motor Type : 3 Pole Ferrite
- Potentiometer Drive : Indirect Drive
- Bearing Type : Dual Ball Bearing
- Gear Type : All Metal Gears
- Connector Wire Length : 11.81" ( 300mm )
- Dimensions : 1.59" x 0.77"x 1.48" (40.6 x 19.8 x 37.8mm )
- Weight : 1.94oz . ( 55.2g )


Thank You & God Speed , Fred

A.T.

Well known brand, the servo has a few other labels.
As always, the cheap servo are cheap because of the components, especially the motors installed therein.
The servo used here had high current drain, and rapid gear wear, good reading:

. Jitter - Intermittant behaviour - Digital HXT & Bluebirds
. Servo - FAQ : Which servo to buy - Peak Servo Current Test Results. ***
. Interbrand Compatibility - Futaba. NB: Hitec & JR post similar statements.
. Servo - FAQ : Metal Gear Servos - DIY Repair & Extend MG Servo Gear Life
. Servo - FAQ : Metal Gear Servos - Expected Lifetime (short) with extreme 3D use. post #2 & #4.
. Servo - FAQ : Metal Gear Servos - Why MG Servo have a Plastic Primary 1st Gear

Much more information available under sub sections
"ESC & BEC - Setup to prevent majority of all RF Problems, Brownouts & Crashes"
"Glitches & Jitter in Receiver, Servo & ESC - Causes and Cures"
"Servo - Alterations, Calculators, Databases, Leads, Repairs, Convert to an ESC or winch & FAQ."
below
"Radio Systems, Accessories, Alterations and FAQ" at
Alan's Hobby, Model & RC FAQ Web Links

Alan T

fc227

Thank you