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Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
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ACME screw actuator failure analysis
We have a linear actuator manufactured in China. We recently have been getting many failures at a stress concentration area of the screw. The basic design is a 0.75" ACME screw. Threads machined off to a diameter of 12mm (.472") where a 5mm (.197") hole is drilled. A pin...- beatcan
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- Replies: 4
- Forum: Mechanical engineering general discussion
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How can I tell a good motor from a bad motor
(I already posted this in the pumps forum instead of electric motors by accident. Sorry if you get this thread twice). Our company is sourcing motors from China for exhaust fans. These are PSC motors, ranging from 1/4HP to 1HP. What is the major determining factor that makes a good quality...- beatcan
- Thread
- Replies: 5
- Forum: Electric motors & generators engineering
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What makes a quality motor from a poor quality
Our company is sourcing motors from China for exhaust fans. These are PSC motors, ranging from 1/4HP to 1HP. What is the major determining factor that makes a good quality motor good. Is it the quality in materials (i.e. copper, laminations, slot liners etc.)? Workmanship? Engineering...- beatcan
- Thread
- Replies: 3
- Forum: Pump engineering
