How long do servos last

A quick report of a servo failure: HSMG. Opening it up, I found that all but one gear was metal - its the second gear after the motor shaft gear. Apparently its plastic, and literally half the teeth have been stripped from it. I was using it as a wheel motor, so no high forces were ever applied to it. I'd say the servo has experienced a subjective 'medium' amount of usage. Another servo failure report. This time its the little metal pin that somehow snapped off on its own.

It appears they redesigned the metal pin to have a much smaller diameter where it inserts into the gear. I was lucky to have an extra gear set for the last time a gear broke. And I'm not abusing this servo either! I think I'm gonna write Hitec, they've answered previous emails of mine. And as I mentioned in another post, another HSMG went up in smoke literally when accidently reversing battery polarity for a second. Hitec never replied to my email about this problem. I'm no longer buying this servo again, and will try other brands from now on.

I got four left, lets see how long it takes for them to fail. Hmmmm I believe I'm cursed. Funny thing tho. I'm really starting to think Hitec servos are low quality.

With the exception of one servo, all these failures are occuring on my robot arms that are only supporting its own weight. When having your equipment repaired at Repair Zone , worn or damaged components are replaced with new so you will see very little difference in the lifespan of a repaired motor versus new. We would love to hear your thoughts. Feel free to submit a comment and join the conversation!

Notice: It seems you have Javascript disabled in your Browser. In order to submit a comment to this post, please write this code along with your comment: f1fea9cb76e6d3. Then the servo may not have good accuracy, slower movement, higher current draw and may not be very good at centering. The factory uses the cheapest labor they can get to assemble the servos, and skips quality control almost completely.

Quality control is actually fairly expensive. Then they do not have a warranty program, no repair capabilities, no spare parts, no returns. They have little or no interest in their image in the marketplace, only sell, sell sell and sell more. On the other hand the higher end more expensive servo uses higher quality parts. Better high grade plastic gears, machined to a higher more precise tolerance, better motor, better poteniometer and a much better controller circuit.

So the servo tends to be faster, more precise accuracy and centering and draw less current doing it all. The company has some quality control program in effect quality control is expensive. They usually offer warranty program, and have spare parts available too. Plus they care about their image in the marketplace too. If your PWM pulse width is small uS servo moves to one side, and if big uS servo moves to the other side. If the width is out of the operating range, usually the servo stay at that extreme side, and perhaps all trembling.

For example, I might have, in the very beginning, wrongly assumed that the project uses RC Radio Controlled toy motors such as the very popular TowerPro standard toy servo, but the real thing might be a 10kg heavy industrial 3 phase VAC induction motor. Actually I have never seen a real wood stove in real life. I need to google this Sunday afternoon, … — tlfong01 1 hour ago. Actually I never saw a real chimney, never knew how to correctly spell it.

Those good at maths will work out that that means we are using servos… So because we are using about 20x the number of servos in a hexapod or humanoid, we are obviously rather concerned with reliability. As many have before, having failed at getting information from Hitec I come here seeking you guidance.

It would be nice if they could devise a uniform test which would ideally be followed by all servo companies such as lifting a specific load through an angle. When we purchased Lynxmotion we inherited many prototype and sample robots.