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Hitec HS-81 Micro Servo 2.6kg/16g/0.11sec
You get two choices with Hitecs most popular servo the HS-81, resin or metal gears. A popular servo for smaller airplanes, helis, boats, cars and trucks, the HS-81 offers a fine balance between speed and torque.
Specifications: Motor Type: 3 Pole Bearing Type: Top Ball Bearing Speed @ 4.8v: 0.11 sec @ 60 deg.
Speed @ 6v: 0.09 sec @ 60 deg.
Torque @ 4.8v: 2.6 kg.cm
Torque @ 6v: 3.0 kg.cm
Size: 30 x 30 x 12mm Weight: 16g
PRODUCT ID: HS-81
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Futaba/JR Connector caps (5pcs/set) Combo Price: $0.94 IN STOCK
Just found out that the nylon gears can't handle the torque.
This servo lasted less than 3 hours in total and then stripped out a very tiny gear.
4 points - 4/10/2013
Can this servo rotate in the same direction without stopping?
If you modify it, yes it can.
this servo work in 500 Hk ? anybody know about the other GOOD servo for HK 500.
I have the same problem. Opened it and one of the drive wheels has broken teeth. You need to find a replacement drive wheel kit. Unfortunately HK does not have it for this servo. Serch the internet...
How do I order the HS-81 metal gear servo?
you can't. the hs-82mg has replaced the hs-81mg. the hs-82mg is currently out of stock
5 points - 4/26/2012
Hello. Have a problem with one of these. Servo jumps 'back' while moving into one direction, and then it keeps going forward. This jump happens at a certain point while going into either direction. Could this be about radio transmitter or a broken servo?
Hello, in my oponion its from a servo, maybe the gears is jump while you moving it.. or the motor is jump and make a misalignment for gears..
i dont know exactly, so sorry... Best Regards
Hi, This is a broken servo.
BEST ANSWER CREDIT AWARDED
Problem is in the servo indeed. I wonder what's wrong with it :o
Does anyone know the amp draw for one of these? I'm using a 60amp ESC which has a 3A bec, I am not sure if that'll be enough to supply 6 servos
Current Drain (4.8V): 8.8mA/idle and 220mA no load operating
Current Drain (6.0V): 9.1mA/idle and 280mA no load operating
Note: Stalled loads will be more.
BEST ANSWER CREDIT AWARDED
Do you guys think, this servo would be alright, for a mini titan E325 Flybarless?
Get the HS82 they are almost the same but metal gear
I have both types and both are very good but for choppers metal gear is better
45 points - 1/8/2010
Using this servo with a telebee gyro. The servo heats up. Tried with another HS 81 servo. Same thing happens. Why is this so?
check if it installed into DS mode =the pin on the wright side gyro.
Replacement Gear Set for this servo ?