Almost zero backlash. close to the hub can't detect any.

This worm gear box is very good quality and sturdy, exactly the product I had in mind, I found that things on CNCEST are not only inexpensive, but the delivery time is also very short, not to mention the excellent after-sales service, I recommend everyone to buy!

So far, it's running smoothly and quietly, with no issues at all. Great product, highly recommended!

Works for my application. I am pleased with the power transfer of the box and the price was reasonable.

1000% better than other gearbox. Don't waste your $ on those. Low noise and better performance life.