12V, 58RPM 60:1 Gear Motor w / Encoder - RobotShop

DescriptionHigh-Power Gear MotorNominal Voltage: 12VNo Load RPM: 83Stall Current: 7AStall Torque: 625 oz-inShaft Diameter: 6 mmHall Effect Encoder

12V 131:1 Gear Motor w/Encoder

12V Metal DC Gearmotor w/Encoder (131:1, 83RPM, 45Kg.cm) - DFRobot

Cytron 12V, 170rpm, 38.23oz-in Gear Motor w / Encoder - RobotShop

Devantech 12V, 30:1 Gear Motor w/ Encoder - RobotShop

60 RPM HD Premium Planetary Gear Motor w/Encoder - ServoCity

Premium N20 Gear Motor 50:1 Ratio, 460 RPM, w/ Encoder 638102

DescriptionDC Planetary GearmotorNominal Voltage: 12VNo Load RPM: 520Stall Current: 5AStall Torque: 119 oz-inShaft Diameter: 6 mmTwo Channel Hall

Cytron 12V, 430rpm, 15.57oz-in Gear Motor w / Encoder

Metal Gearmotor with Encoder - 12V (9.7:1) - ROB-17754 - SparkFun Electronics

NeveRest 40 12V, 160RPM, 350 oz-in Gearmotor w/ Encoder - RobotShop