Ok, finally had a moment for this. Apologies for the bad quality pictures, phone broke so I’m on a crappy loaner for the moment.
First off, two points: I’m not here to get into a discussion of whether or not a 6355 or 5455 stator in a 6374 case is a 6374 motor or not. We all know the size of the stator is the reason you buy a larger motor. Putting a smaller stator in a larger case doesn’t result in a ‘bad quality’ 6374, it results in a fake, and the distinction of ‘bad quality’ vs ‘fake’ is just semantic. The point is, it’s not what was advertised.
Second, there was no mention of the 170kv motor being higher quality. You just said it was available. I could easily post a screenshot of our conversation, but I hope that’s not necessary.
Now then, on to the pictures. These are all pictures of the 6374 kit advertised above, it’s the same item.
First, the length of the outside case.
The black cap on the non-axel side of the motor is empty. The black cap at the base is where the bearings are. The stator and magnets are all in the silver section, with is 45-47mm long. That’s the maximum possible stator length here.
Looking inside, the stator is only between the black screws attaching the silver case to the black cap. I’ve provided pictures of this on the end; you can measure in a full cm before hitting the stator.
Which leaves us with a maximum stator length of 35-37mm. I’m assuming the stator starts at the black screw on the axel side as well, and a magnetic test shows that’s where the magnet starts, but I don’t feel like disassembling this to find out.
Conclusion: maximum stator length of 35-37mm, generously. Real estimate of stator length: 30mm.
So no, @dickyho, that’s not what was advertised and not what I paid for, and it’s not a question of “quality”, either. What’s your proposal for rectifying this? I hope it doesn’t involve me paying for shipping once again in order to get what I was initially lead to believe I was purchasing.