{"title":"100:1 Metal Gearmotor 37Dx57L mm 12V (Helical Pinion)","handle":"100-1-metal-gearmotor-37dx57l-mm-12v-helical-pinion-1","url":"/products/100-1-metal-gearmotor-37dx57l-mm-12v-helical-pinion-1","description":"A high-torque 100:1 brushed DC gearmotor from Pololu's 37D series — the largest and most powerful in their range. Measuring 37mm (1.46\") in diameter and 57mm long, this 12V motor delivers substantial torque for robotics and mechanical projects.\n\nThe gearbox uses helical gears for the first stage, reducing noise and improving efficiency compared to straight spur gears throughout. An optional 64 CPR quadrature encoder is available separately for closed-loop speed and position control.\n\nKey Features\n\n\n100:1 Gear Ratio – High torque reduction for demanding loads\n\nHelical Pinion First Stage – Quieter and more efficient than all-spur designs\n\n37mm Diameter – Powerful form factor for robotics applications\n\n12V Nominal Voltage – Compatible with standard 12V power supplies and batteries\n\nAll-Metal Gearbox – Durable construction for sustained operation\n\n\nSpecifications\n\n\nGear Ratio – 100:1\n\nMotor Type – Brushed DC\n\nNominal Voltage – 12V\n\nDimensions – 37mm diameter × 57mm length\n\nGearbox Type – Metal spur gears with helical first stage\n\n\n\nNote: Listed stall torques and currents are theoretical extrapolations — motors will typically stall before reaching these values as they heat up. The recommended upper limit for continuous loads is 10 kg·cm (150 oz·in), and for instantaneous torque 25 kg·cm (350 oz·in). Keep operating current at 25% or less of stall current to maximise motor life.\n\n\nIdeal For\n\nRobotics drivetrains and mechanisms\nMotorised platforms and chassis\nCNC and automation projects\nAny application requiring high torque at moderate speed\n\n\nResources\n\n37D Metal Gearmotor Datasheet (PDF)\n","vendor":"Pololu","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":14668,"title":"Default Title","sku":"PL-4745","price":59.48,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}]}