Whats that you say about the high quality of JB? Seems like a pile of crap to me. And a shaft like that, with the right milling equipment, can be produced in short order. Bad product, worse service, never using them. Sorry you had to experience a failure like that but live and learn. Although my product breakage was less critical, I'd suggest never using A to Z Fabrication products. The spindle snapped off on my tire carrier. Cheap metal.
Whats that you say about the high quality of JB? Seems like a pile of crap to me. And a shaft like that, with the right milling equipment, can be produced in short order. Bad product, worse service, never using them. Sorry you had to experience a failure like that but live and learn. Although my product breakage was less critical, I'd suggest never using A to Z Fabrication products. The spindle snapped off on my tire carrier. Cheap metal.
Yeah unlike the Engineers in this group, most are total douches and full of themselves. Social skills and customer service is not typically a prerequisite for that profession.
Engineers that are quality minded would want the piece back for failure analysis to improve the process. If I still took samples to NC State for materials analysis, I'd love to see what the fractures looked like and if there were any inclusions/contaminants in the metal that might be the root cause.
Whats that you say about the high quality of JB? Seems like a pile of crap to me. And a shaft like that, with the right milling equipment, can be produced in short order. Bad product, worse service, never using them. Sorry you had to experience a failure like that but live and learn. Although my product breakage was less critical, I'd suggest never using A to Z Fabrication products. The spindle snapped off on my tire carrier. Cheap metal.
Just because it snapped does not mean that the quality is not high. It could very well be that I simply put too much power through the part. What is disheartening is what Brian is talking about above.
For example. The JB 29 spline input is machined farther down the collar to allow the use of a second seal in the transfer case bearing retainer, meaning that there are two seals keeping the transmission fluid and transfer case fluid separate, or that their bearing retainer is also a clocking ring. It's the little things.
When I was designing and manufacturing RC helicopter equipment I always wanted a part back if it failed. I wanted to know why it failed and correct it. I feel the same about what I do now, if something lets go I want to know why and correct it. I am always looking for a better, stronger, more efficient way to do any one process.
When I was designing and manufacturing RC helicopter equipment I always wanted a part back if it failed. I wanted to know why it failed and correct it. I feel the same about what I do now, if something lets go I want to know why and correct it. I am always looking for a better, stronger, more efficient way to do any one process.
Any manufacturer who doesn't do this, to some degree, is very short sighted. At Cisco, we have a rigorous Engineering Failure Analysis (EFA) program that is instituted when failure rates (which are closely tracked) exceed expected values. This can be the for one part across the globe, or a high failure rate in a particular environment. It's just basic manufacturing process.
I'm not surprised they didn't give you a brand new part for nothing. Often that is not how things would work. But to not care to see how it failed having never seen it before is disconcerting - especially since it sounds like they should be running another batch sometime in the future. My 15 month old Quincey compressor motor failed (JC I know you know the story). This was 3 months out of warranty. I was put out b/c I spent the extra money on a US manufacturer that has a large market share, especially in commercial. They sent me a new motor after helping me confirm what the root cause was over the phone. They didn't want it back, because they buy the motors and I'm guessing just track the failure rate and charge it back the the motor manufacturer. But that's customer service - and I'll never buy a compressor from anyone else.
If I still took samples to NC State for materials analysis, I'd love to see what the fractures looked like and if there were any inclusions/contaminants in the metal that might be the root cause.
Hey everyone, just following up on this event now that we're over a month after it ending. We still have an Accounts Receivable of a couple hundred dollars for this trip, meaning that we're still waiting to collect payment from people who attended. Please reach out to @GarnerFJ40 and @Fort Knox to send in your payments.
