Use the parallel 785 Gear Rack Kit with your Hitec HS-785HB servo (included) to convert its rotary motion into a linear motion. There are lots of assembly options!
Parallel 785 Gear Rack Kit, for creating new linear robotic systems
This Hitec HS-785HB rotary servo kit (from Servocity) generates a linear motion over a distance of 21.38 cm using a rotary servo. Simply send the appropriate PWM signal with a motor controller (between 850 and 2150 µs).
The HS-785HB servo gear rack kit includes robust aluminium and plastic parts and all the necessary hardware. And you’ll find a video among our resources explaining all the different assembly stages and which tools you’ll need (not many!).
The assembly parts, which are compatible with the Actobotics components, offer you lots of possibilities to improve your system.
Technical specifications of the rotary servo parallel gear rack kit
Kit includes:
1 HS-785HB servo motor
1 x 1/4 scale servo plate
1 Y beam bracket set
2 sets of 90° dual side mounts
1 x 90° quad B-type hub mount
12 x 6.35 mm 6-32 socket head cap screws
4 x 7.9 mm 6-32 socket head cap screws
2 x 15.9 mm 6-32 socket head cap screws
2 x 6-32 Nyloc nuts
6 x #6 washers
1 x 16T, 32P (16-tooth, 32-pitch) metal servo gear
1 x 32P plastic beam gear rack
1 x 312.9 mm aluminium beam
Total weight: 208.6 g
Travel: 213.8 mm
PWM range to achieve full travel: 850–2150 µs
Motor specifications:
Control system: +pulse width control 1500 µs neutral
Required pulse: 3–5V peak-to-peak square wave
Operating voltage: 4.8–6V
Operating temperature range: -20 to +60 °C
Operating speed (4.8V): 1.68 s/360° at no load
Operating speed (6V): 1.4 s/360° at no load
Stall torque at 4.8V: 11 kg/cm
Stall torque at 6V: 13.2 kg/cm
Operating angle: 630° one side pulse travelling 400 µs
Current drain (4.8V): 8 mA idle and 230 mA no load operating
Current drain (6V): 8.7 mA idle and 285 mA no load operating
Dead bandwidth: 8 µs
Motor type: 3 pole ferrite
Potentiometer drive: indirect drive
Bearing type: 1 bearing and 1 Oilite bushing
Gear type: all karbonite gear
Connector wire length: 300 mm
Dimensions: 59 x 29 x 50 mm
Weight: 110 g
Resources for the 637169 Hitec HS-785HB servo kit
Assembling the 785 Gear Rack Kit couldn’t be simpler – if you want proof, watch the video!
Data sheet
Motion
Linear
Use the parallel 785 Gear Rack Kit with your Hitec HS-785HB servo (included) to convert its rotary motion into a linear motion. There are lots of assembly options!