{"title":"Metal Gearmotor with Encoder - 12V (9.7:1)","handle":"metal-gearmotor-with-encoder-12v-9-7-1","url":"/products/metal-gearmotor-with-encoder-12v-9-7-1","description":"This 12V brushed DC gearmotor features a 9.68:1 metal spur gearbox and an integrated 48 CPR quadrature encoder on the motor shaft, providing 464.64 counts per revolution of the gearbox output. The two-channel Hall effect encoder senses a magnetic disk on the motor shaft, delivering speed and direction feedback for precise closed-loop control.\n\nThe motor has a cylindrical form factor just under 25mm in diameter, with a 4mm D-shaped output shaft extending 12.5mm from the gearbox face plate. Six colour-coded leads (20cm) terminate in a 1×6 female header with 0.1\" pitch for easy connection.\n\nSpecifications\n\n\nVoltage: 12V\n\nGear Ratio: 9.68:1\n\nNo-Load Speed: 580 RPM\n\nNo-Load Current: 60mA\n\nStall Current: 0.9A\n\nStall Torque: 1.3 kg·cm (18 oz·in) — theoretical extrapolation\n\nMax Power: 1.8W\n\nOutput Shaft: 4mm D-shaft, 12.5mm length\n\nMotor Diameter: ~25mm (cylindrical)\n\nLead Length: 20cm with 1×6 female header (0.1\" pitch)\n\n\nEncoder Specifications\n\n\nType: Two-channel Hall effect quadrature encoder\n\nResolution: 48 CPR (motor shaft) / 464.64 CPR (gearbox output)\n\nEncoder Vcc: 3.5–20V, max 10mA\n\nOutput: Square waves (A and B channels, ~90° phase offset)\n\n\n\nWarning: Listed stall torques and currents are theoretical extrapolations — motors will typically stall before these points as they heat up. Recommended continuous load limit: 4 kg·cm (55 oz·in). Intermittent maximum: 8 kg·cm (110 oz·in). Keep operating current at 25% or less of stall current to avoid thermal damage.\n\n\nIdeal For\n\nClosed-loop speed and position control in robotics\nWheeled robot drive systems with odometry\nPrecision motorised mechanisms\n","vendor":"SparkFun","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":1528,"title":"Default Title","sku":"SF-ROB-17754","price":301.28,"on_sale":false,"in_stock":true,"available_quantity":40,"option1":"Default Title"}]}