Pololu Blog »
New high-gear ratio Micro Metal Gearmotors
Our Micro Metal Gearmotors are now available with 380:1 gearboxes, offering a new high gear ratio option between our existing 298:1 and 1000:1 versions. Unlike the 1000:1 gearmotors, which uniquely require a longer, more expensive gearbox to achieve such a big reduction, the 380:1 gearboxes fit everything in the same volume as all our lower gear ratios, so they are the same price as those lower-ratio versions and they work with all our micro metal gearmotor brackets.
What really sets these new units apart from our other gear ratios are their stainless steel gearbox plates, which are more durable than the ubiquitous brass ones, especially in applications with non-negligible radial loads. They also look way cooler!
|
|
The main point of this higher gear ratio is not to deliver more total torque but rather to enable slower speeds and lower current draws than our lower gear ratios at the same loads. That said, the 380:1 gearbox can withstand higher torques than our lower gear ratios thanks to its use of progressively thicker gears toward the output. Both the 380:1 and 1000:1 gearboxes have a recommended instantaneous torque limit of 2.5 kg*cm, while the lower gear ratios have a recommended limit of 2.0 kg*cm (note: we strongly advise keeping applied loads well under these instantaneous limits).
These new gearboxes are available paired with each of our five motor winding options in compact single-shaft or encoder-friendly dual-shaft configurations, resulting in the ten new options shown as related products at the bottom of this post. These are just the latest example of our continued commitment to being the best source for this popular form factor of gearmotor. You might see similar-looking motors elsewhere, but no one comes close to our offering, from the quality of the gears to our exclusive long-life carbon brush options to the overall breadth of our selection (over 100 versions!), all in stock for shipment the day you order.
Related products
-
Distributor Active Robots attends micromouse challenge at Swansea University
- 28 May 2019One of our UK distributors, Active Robots, recently had the opportunity to attend a micromouse competition at Swansea University in Wales. Students...
-
Tito-Stretch: a Pi Wars robot by Hitchin Hackspace
- 4 June 2019For the second year in a row, Team Hitchin Hackspace and their robot, Tito-Stretch, placed 4th overall in the Pi Wars! They did this at the...
0 comments
Post a comment
Home | Forum | Blog | Support | Ordering Information | Wish Lists | Distributors | BIG Order Form | About | Contact
© 2001–2024 Pololu Corporation
