{"product_id":"tt-motor-bi-metal-gearbox-double-sided-axle-and-1-90-gear-ratio","title":"TT Motor Bi-Metal Gearbox Double Sided Axle and 1:90 Gear Ratio","description":"\u003cp\u003eThese durable (but affordable!) gearbox motors (also known as 'TT' motors) are an easy, low-cost way to get your projects moving. This is a TT DC Bi-Metal Gearbox Motor with a gear ratio of 1:90, about double the 'standard' 1:48 ratio. That gives them higher torque but slower rotational speed. Since they're slower, they're good for robots where strength is more important than speed.\u003c\/p\u003e \u003cp\u003eThey look a lot like our yellow all-plastic-gearbox motors, but these have the output half of the motor gears machined from steel, so they won't strip as easily, and they're twice as slow (and twice as powerful) given their lower gearbox ratio. The metal gears also mean they're louder when running.\u003c\/p\u003e \u003cp\u003eYou can power these motors with 3VDC up to 6VDC; they'll, of course, go a little faster at the higher voltages. We grabbed one motor and found these stats when running it from a bench-top supply\u003c\/p\u003e \u003cul\u003e \u003cli\u003eAt 3VDC we measured 80mA @ 60 RPM no-load, and 0.5 Amps when stalled\u003c\/li\u003e \u003cli\u003eAt 4.5VDC we measured 90mA @ 90 RPM no-load, and 0.8 Amps when stalled\u003c\/li\u003e \u003cli\u003eAt 6VDC we measured 100mA @ 120 RPM no-load, and 1.0 Amps when stalled\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eNote that these are very basic motors and have no built-in encoders, speed control or positional feedback. Voltage goes in, rotation goes out! There will be variations from motor to motor, so a separate feedback system is required if you need precision movement.\u003c\/p\u003e \u003cp\u003eComes 1 x per order, with just the motor. These motors \u003cstrong\u003edo not\u003c\/strong\u003e come with wires attached, so you'll need to solder wires on yourself.\u003c\/p\u003e \u003cp\u003eYou \u003cstrong\u003ecannot\u003c\/strong\u003e drive these directly from a microcontroller; a high-current motor driver is required! We recommend our \u003ca href=\"adafruit-drv8833-dc-stepper-motor-driver-breakout-board\"\u003eDRV8833 motor driver\u003c\/a\u003e for these motors, as it works well down to 3V and can be set up with current limiting since the stall current on these can get high. The \u003ca href=\"adafruit-tb6612-1-2a-dc-stepper-motor-driver-breakout-board\"\u003eTB6612\u003c\/a\u003e can also be used; it's on our shields and wings, but you'll need to supply at least 4.5V - which is what you'll likely want to run these motors at anyhow!\u003c\/p\u003e \u003cp\u003eWe have a range of \u003ca href=\"\/nl\/search?q=tt+motor\u0026amp;narrow_by=\u0026amp;sort_by=relevency\u0026amp;page=1\"\u003ewheels, add-ons, and accessories\u003c\/a\u003e for these motors so you can bling out your bot just the way you like.\u003c\/p\u003e \u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"\/\/www.youtube.com\/embed\/zW8jyBU3MuE?si=3wL88DANX0y___pk\u0026amp;start=172\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen=\"allowfullscreen\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e \u003ch2\u003eSpecifications\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eProduct Dimensions: 69.8mm x 36.1mm x 22.5mm\u003c\/li\u003e \u003cli\u003eProduct Weight: 33.8g\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eResources\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\u003ca href=\"https:\/\/cdn-shop.adafruit.com\/product-files\/5857\/TT_Motor_SPEC.pdf\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e","brand":"The Pi Hut","offers":[{"title":"Default Title","offer_id":50847483691281,"sku":"ADA5857","price":5.3,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6285\/6209\/files\/tt-motor-bi-metal-gearbox-double-sided-axle-and-1-90-gear-ratio-the-pi-hut-ada5857-41717969715395.jpg?v=1735213906","url":"https:\/\/abcd3032.myshopify.com\/nl\/products\/tt-motor-bi-metal-gearbox-double-sided-axle-and-1-90-gear-ratio","provider":"Tayyab Zak","version":"1.0","type":"link"}