For the avoidance of doubt, what I am suggesting very strongly in the lists above, is that the "=" sign means that the motors linked in this way are actually identical.
Theyhave the same internal parts, the same magnets and number of magnets,the same stator and windings. Themotors will of course have the same performance. Of course, all the motors in this list are manufactured side-by-side in the same factory.
This will hold, even if the motorshave a slightly differentexternal appearance, in terms of the style of the front and backend-housings, or the colour of the can and end housings. The external appearance of the motor is just cosmetic, and has no effect on its performance.
In some cases, the various brand name retailersselling the motor, might quoteslightly different Kv's for the motor, even if it is exactly the same motor. Possibly,measurements made by abrand name vendor may be slightly incorrect, or in some casesa vendormightchange the quoted Kv deliberately by 10 or 30 or 60 rpm,to makeit look like a different motor from the one being sold under a different brand name. However, if a motor made in the same factory with the same internal parts has, for instance,a 1709 stator with 9 wire turns, and has 12 magnet poles, and has the same weight and same external dimensions, it will be the same motor whether it has a quoted Kv of 1700 or 1580 ...

Just to take some examples:
Hacker A10-9L, Kv 1700, 9T is the same motor as the generic SunRay 1709-1580Kv 9T
This is also exactly the same motor as:
LiPolice1709/9T-1580KV
OKHobby Infinite A1709-1500, 9T
HYPERION Z1709-09T 1500 KV
Foxy C1709/09 1580 Kv
APACHE APM10-9T, Kv1700
Gens ACE Mars BL2122-1580KV, 9T
FURY SA-10-9L-1700 Kv, 9T


Hacker A20-30 M EVO, Kv 980, 30T is the same motor as the genericSunRay 2209-980Kv 30T
It is also the same motor as:
Torque 30T/980
Turnigy SK3 2826-980kv, 30T
LiPoliceLP-2209/30T-980KV
OK Hobby Infinite A2209-950, 30T
Foxy C2209/30 980 Kv
APACHE APM20-30T, 980 Kv
Gens ACE Mars BL2722-980KV, 30T