Sign In SHOP BLOG LEARN FORUMS 0 Items VIDEOS ROBOTICS & CNC / DC MOTORS / TT MOTOR ALL-METAL GEARBOX - 1:90 GEAR RATIO TT Motor All-Metal Gearbox - 1:90 Gear Ratio PRODUCT ID: 3802 OUT OF STOCK Please enter your details below and we will send you an email when this item is back in stock. You will only be emailed about this product! YOUR NAME YOUR EMAIL NOTIFY ME ADD TO WISHLIST DESCRIPTION TECHNICAL DETAILS DESCRIPTION These durable (but affordable!) gearbox motors (also known as 'TT' motors) are an easy, lowcost way to get your projects moving. This is a TT DC All-Metal Gearbox Motor with a gear ratio of 1:90 about double of 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. They look a lot like our yellow all-plastic-gearbox motors but these have all 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. You 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 benchtop supply At 3VDC we measured 80mA @ 60 RPM no-load, and 0.5 Amps when stalled At 4.5VDC we measured 90mA @ 90 RPM no-load, and 0.8 Amps when stalled At 6VDC we measured 100mA @ 120 RPM no-load, and 1.0 Amps when stalled Note 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 variation from motor to motor, so a separate feedback system is required if you need precision movement. Comes 1 x per order, with just the motor. These motors do not come with wires attached, so you'll need to solder wires on yourself. You cannot drive these directly from a microcontroller, a high-current motor driver is required! We recommend our DRV8833 motor driver 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 TB6612 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! We have a range of wheels, add-ons and accessories for these motors so you can bling out your bot just the way you like. TECHNICAL DETAILS Dimensions (excluding shaft): 69.5 x 22 x 20.7mm Product Weight: 39.4g / 1.4oz MAY WE ALSO SUGGEST... Skinny Wheel for TT DC Gearbox Motors Anodized Aluminum Metal Chasis for a Mini Robot Supporting Swivel Caster Wheel - 1.3" Diameter Snap-on Hub for TT Motor Dual H-Bridge Motor Driver for DC or Steppers - 600mA DC Gearbox Motor - "TT Motor" - 200RPM - 3 to Orange and Clear TT Motor Wheel for TT DC Gearbox TT Motor Pulley - 36mm Diameter DC Motor + Stepper FeatherWing Add-on For All Adafruit DC & Stepper Motor HAT for Raspberry Pi DISTRIBUTORS CONTACT SUPPORT DISTRIBUTORS Thin White Wheel for TT DC Gearbox Motors - 65mm TT Motor Encoder (Pack of 2) EXPAND TO SEE DISTRIBUTORS "We have a hunger of the mind which asks for knowledge of all around us, and the more we gain, the more is our desire; the more we see, the more we are capable of seeing" - Maria Mitchell EDUCATORS JOBS FAQ SHIPPING & RETURNS TERMS OF SERVICE PRIVACY & LEGAL ABOUT US ENGINEERED IN NYC Adafruit (R) 4.9