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Motors & Servos

Motors & Servos for powering robots
DC Motors for robots
Servo mounts & brackets for robots

Servos for robotics applications
continuous rotation servos for robots

Motors & Servos
  • TETRIX® MAX DC Motors provide power for bigger and faster robots and features a hard steel alloy to prevent gear stripping
  • TETRIX MAX offers quarter scale, standard scale, and continuous rotation servos with both basic and superior features
  • The PRIME system offers both standard and continuous rotation servos with operating voltage of 6 volts
  • Both systems feature mounting hardware: PRIME has an acetal plastic mounting bracket and shaft servo hubs while MAX several aluminum options including pivot arm, dual and single servo, front mount, and other brackets
Video: Mounting servos on your robots


Redesigned for improved performance, this motor can handle more heat buildup and now has tougher coil protection and a harder steel alloy to prevent gear stripping. Twelve-volt DC motor features 152 rpm and 320 oz-in. of torque. Note: Gear train damage can occur if the motor shaft is stalled while being powered.


Keeping spare motors on hand is always a good idea. We’ve made stocking up on these critical elements easy with this bulk pack.


  • 4 twelve-volt DC motors (39530)
  • 4 motor mounts (39089) and motor hubs (39079)
  • Variety of DC motor leads


  • Take your TETRIX robots to the next level with a stronger 12-volt DC motor with 100 rpm and 700 oz-in. of torque.
  • Designed with a built-in, high-resolution Hall effect encoder for precise motor control
  • Based on user feedback and created specifically to withstand the stress of intense robotics competitions


The Quarter-Scale Servo for TETRIX® offers a whopping 183 oz-in. of torque, 180-degree rotation, and superior strength and performance. Perfect for robot builds that require more power and durability.

The servo features Karbonite gears that offer incredible toughness and strength. Attach this Quarter-Scale Servo to your TETRIX robot with ease with one of our Quarter-Scale Servo Mounting Brackets.

Each servo includes one TETRIX Aluminum Servo Horn.


The HS-785HB is a super-duty servo with advanced features. Incorporated into this servo are heavy-duty Karbonite gears and integrated circuitry for accurate positioning over a 1,260-degree range (3.5 rotations).

Delivering a maximum torque of 183 oz-inches, this unique servo offers greater rotational range control and power to TETRIX® robot builds. Attach this quarter-scale servo to your TETRIX robot with ease with one of our quarter-scale servo mounting brackets.

Each servo includes one nylon dual-wind pulley and one TETRIX Aluminum Servo Horn.


Producing nearly 84 oz-in. of torque power, the 180-degree servo is one of the best choices for rugged robotic applications. This servo’s great performance and durability are a combination of Karbonite gears, high-performance circuitry, and a ball bearing-supported output shaft. Karbonite gearing is nearly four times stronger than nylon gears and provides virtually wear-free performance. Standard rotational range is 90 degrees, but it can be operated to 180 degrees with controllers capable of generating a pulse range from 600 usec to 2400 usec.


For when additional servo motors are needed to bring a robotic creation to life, this bulk pack provides you with a number of extra motors and mounting brackets.


  • 4 180-Degree Standard-Scale HS-485HB Servo Motors (39197)
  • 4 standard servo mounting kits (41789)


Featuring fully proportional forward and reverse speed control, this servo enables precise movements of robot designs. Unlike other servos that have a limited range of motion, this servo rotates continuously in either direction – as needed for wheels. This high-quality servo is designed with a wide neutral dead band to eliminate the “creep” that occurs in many other continuous rotation servos. Dual ball bearings on the output shaft ensure long-lasting performance. Note: This servo does not have position feedback.