Mini 12V 4"Stroke Electric Linear Actuator, 60N(13.4Lbs), Speed 15mm/s Linear Motion Actuator, Waterproof Linear Actuator with Waterproof Switch and Bracket, for Window Ppener, Robot (100mm)

Junk

Very noisy for a little fella 🙄 works and performs ok but really can be a little be quite.

Most people aren't going to rip a new item apart to see if its made well but sometimes in order to do an honest review its required Diassembly revealed surprisingly good quality for the price. The PWB limit board is gold plated so it should be pretty resistant to wear and corrosion The bearing on the lead screw is a deep groove which for a 60N load is entirely sufficient (you aren't getting opposing angular contact bearings anywhere near this price) The delrin/nylon lead nut fits snug on the leadscrew with very little backlash - it is only a couple of threads long so expect some increase due to wear if the unit is operating near its max load but that is to be expected as this is not a precision positioner. Piston arm fits well into the main housing with very little wobble or slop The only thing I did is place a drop or two of machine oil on the gearbox before reassembly. Force - I didn't grab a scale to measure it so just went by feel. Took more than the rated 13 lbs to stall the motor at around 0.5 amps Sound - slight gear whirring under no load increasing as load increases. Not loud and no clicks, pops or grinding even under load. Definite buy if you need a light duty short stoke actuator

DURING MY SECOND USE THE MOUNTING END PULLED APART