Specification:
Model: PTK 8850 42KG RC Servo
Gear Material: Stainless Steel Gear
Case Material: CNC Case
Operating Temperature: -15°C~+60°C
Operating Travel: 180° (± 10°)
Refresh Rate: 333Hz
Net Weight: 70.2g
Pulse Width: 500 To 2500 μSec
PCB: Digital
Dead Band: 2 μp
Neutral Position: 1500uS
Size: 40*20*36.8mm
Bearing: Double Ball Bearing
Operating Voltage: 5V-8.4V
Wire: JR 250MM
Operating Current: 7.4V/150mA
Programmable: Yes
Operating Speed @ 5.0V: 0.145sec/60°
Operating Speed @ 6.0V: 0.117sec/60°
Operating Speed @ 7.4V: 0.095sec/60°
Operating Speed @ 8.4V: 0.086sec/60°
Stall Torque @ 5.0V: 26kg-cm
Stall Torque @ 6.0V: 30kg-cm
Stall Torque @ 7.4V: 38kg-cm
Stall Torque @ 8.4V: 42kg-cm

Model: PTK 8852 30KG RC Servo
Gear Material: Metal Gear
Case Material: CNC Case
Operating Temperature: -15°C ~ +60°C
Operating Travel: 180° (± 10°)
Refresh Rate: 333Hz
Net Weight: 66.4g
Pulse Width: 500 to 2500 u00b5Sec
PCB: Digital
Dead Band: 2 u00b5s
Neutral Position: 1500 u00b5s
Size: 40*20*36.8mm
Bearing: Double Ball Bearing
Operating Voltage: 5V-8.4V
Wire: JR 250MM
Operating Current: 7.4V/150mA
Programmable: Yes
Operating Speed @ 5.0V: 0.085sec/60°
Operating Speed @ 6.0V: 0.072sec/60°
Operating Speed @ 7.4V: 0.059sec/60°
Operating Speed @ 8.4V: 0.054sec/60°
Stall Torque @ 5.0V: 20 kg-cm
Stall Torque @ 6.0V: 25 kg-cm
Stall Torque @ 7.4V: 28 kg-cm
Stall Torque @ 8.4V: 30 kg-cm

Package included:
1x RC Servo