Review on Powerful And Efficient AZSSMUK 12V DC Worm Geared Motor With High Torque And 6Mm Female Shaft by Robby Agrawal

2 motors have stopped working after minimal usage (maybe 4-6 hours each) on light load. Motors will stop turning and heat up. Manually turning them (without gearbox) while powered releases whines, smoke, and bad smells. Ill only run them unattended outside. Revain has been great about refund/replacements.When they work they have a lot of torque and are reasonable quiet. Gearbox insides look very sturdy, all metal. FWIW it looks like the motor can be replaced, the worm gear is pressed on but i could get it to move with a flathead.I will try a different seller and hope they have a better batch.