Servo Motor and Controller Guide
Learn about servo motors and servo motor controllers in this guide, including: how servo motors work, how to choose a servo motor, types of servo motors, and more.
Products for USB Sensing and Control
Quantity Available: 2
| Qty | Price |
|---|---|
| 5 | $38.88 |
| 10 | $37.26 |
The powerful HS-645MG is the perfect choice for those projects requiring a durable high torque servo. Featuring a unique M/P and metal gear train technology, the HS-645MG offers one of the strongest gear trains available in an RC servo.
RC servos are hobbyist remote control servos typically used in radio-controlled models, where they provide actuation for various mechanical systems such as the steering of a car, the flaps on a plane, or the rudder of a boat. These servos are not industrial grade and are not recommended for continuous heavy use.
This servo motor needs to be connected to a servo controller board. You can plug this servo directly to any of the boards in the list below by matching the color of the wire with the label on the board. Note that some servos have a white data wire and others have a yellow one- in both cases this wire corresponds to the "W" pin on the servo controllers.
| Motor Properties | |
|---|---|
| Motor Type | Limited Rotation Servo |
| Range of Rotation | 180° |
| Rated Speed | 300°/s |
| Rated Torque | 7.7 kg·cm |
| Physical Properties | |
| Gear Train Material | Metal |
| Bearing Type | Dual Ball Bearing |
| Motor Length | 37.7 mm |
| Motor Width | 40.6 mm |
| Motor Depth | 19.8 mm |
| Wire Length | 300 mm |
| Weight | 55.2 g |
| Electrical Properties | |
| Rated Voltage | 5 V DC |
| Rated Current (on 1061 controller) | 230 mA |
| Rated Current (on 1066 controller) | 120 mA |
| Stall Current (on 1061 controller) | 1.8 A |
| Stall Current (on 1066 controller) | 480 mA |
| Customs Information | |
| Canadian HS Export Code | 8501.10.00 |
| American HTS Import Code | 8501.10.40.60 |
| Country of Origin | PH (Philippines) |
These product specifications are based on our own tests using the HS-645motor with the Phidgets 1061 and 1066 motor controllers.
| Product | Motor Properties | ||||
|---|---|---|---|---|---|
| Part Number | Price | Motor Type | Range of Rotation | Rated Torque | Rated Speed |
 Hitec Continuous Rotation Servo
|
$18.75 | Continuous Rotation Servo | — | 2.8 kg·cm | 44 RPM |
 Hitec Mega Sail Servo
|
$52.00 | Limited Rotation Servo | 180° | 19.8 kg·cm | 125°/s |
 Hitec Super Torque Servo
|
$40.50 | Limited Rotation Servo | 180° | 7.7 kg·cm | 300°/s |
 Hitec Winch Servo
|
$57.75 | Limited Rotation Servo | Approx. 2700° | 11 kg·cm | 225°/s |
 SpringRC Standard Servo
|
$8.00 | Limited Rotation Servo | 180° | 3.5 kg·cm | 400°/s |
 SpringRC Small Servo
|
$10.00 | Limited Rotation Servo | 180° | 2.4 kg·cm | 375°/s |
 SpringRC High Torque Continuous Rotation Servo
|
$18.00 | Continuous Rotation Servo | — | 12.2 kg·cm | 50 RPM |
