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AGFRC
AGFRC A81FHX 54 kg cm High Torque High Speed Brushless Servo
In stock: ships within 2 business days.
Low stock: lead time confirmed upon order.
Delivery: 4–9 days after shipment.
AGFRC A81FHX is a programmable 4.8 to 8.4 V digital servo with a 4 pole brushless motor, 220 degree mechanical angle, and fast 0.082 sec per 60 degrees response for high load RC vehicles
➤ The AGFRC A81FHX is a high torque and high speed digital brushless servo for RC steering, braking, throttle, and other mechanical control systems. It operates from 4.8 to 8.4 V, delivers up to 54 kg cm of stall torque at 8.4 V, and reaches 0.082 sec per 60 degrees at 8.4 V. The 4 pole brushless motor, FET drive, programmable PWM control, 333 Hz refresh rate, and 2 μsec dead band provide strong and responsive position control.
➤ The servo features high strength steel gears, an aluminum case, four metal ball bearings, and a 25T 5.92 mm spline in a compact 40 x 20 x 38 mm body. Its 180 degree plus or minus 10 degree operating travel and 220 degree mechanical angle make it a practical choice for high load RC vehicle control systems when the power supply, load, travel, mounting space, and environmental conditions are properly matched.
Main Features
● 4.8 to 8.4 V operating voltage
● Up to 54 kg cm stall torque at 8.4 V
● 0.082 sec per 60 degrees speed at 8.4 V
● 4 pole brushless motor with FET drive
● Programmable digital PWM control
● 333 Hz refresh rate and 2 μsec dead band
● 220 degree mechanical angle with 180 degree plus or minus 10 degree travel
● Steel gears aluminum case four ball bearings and 25T spline
Applications
➤ This servo can be considered for 1/8 scale high load RC cars and trucks for steering braking throttle and heavy linkage control where 4.8 to 8.4 V power and up to 54 kg cm stall torque are required, with installation compatibility to be confirmed.
Specifications
Operating Voltage
4.8V - 8.4V
Temperature Range
-15°C - +70°C
Refresh Rate
1520 µS / 333Hz
Travel Angle
180 ± 10°
Programmable
Yes
Case Material
Aluminum
Gear Material
Strength Steel
Sensor Type
Potentiometer
Motor Type
4-Pole Brushless
Bearing
4BB
Direction
CCW
Horn Gear Spline
25T-ɸ5.92 mm
Wire
TYU 300mm / 22AWG
Wire Color
Dimensions
40*20*38 mm (1.57 × 0.79 × 1.50 in)
Weight
85 g (3.0 oz)
Operating Speed
0.125 sec/60° @4.8V
0.105 sec/60° @6.0V
0.092 sec/60° @7.4V
0.082 sec/60° @8.4V
Stall Torque
36 kg·cm (500 oz·in) @4.8V
43 kg·cm (597 oz·in) @6.0V
48 kg·cm (667 oz·in) @7.4V
54 kg·cm (750 oz·in) @8.4V
Package Includes
● 1 x A81FHX Servo
● 1 x 25T Metal Horn
● 2 x 25T Plastic Horns
● 4 x M3*12mm Screws
● 1 x M3*8mm Screw
● 2 x M2*8mm Screws
● 4 x 9*6.9*5.6mm Rubber Pads
● 4 x φ6*φ3.5*5mm Copper Sleeves
● 1 x AGFRC Logo Sticker
➤ Perhaps you will need a spec datasheet or other related documents of the products. If there is a download button, it means you can simply click to download. We will continuously update the latest files for each product.
➤ If you do not find the file you want, please feel free to contact shopping@agfrc.com directly.
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