Yes, the hub is identical
Same 5x120 PCD and same 64.1 mm centre bore: wheels from Tesla Model X bolt on and centre on Nio ES8 without rings. You still need to check the offset and tyres, detailed below.
≈: width estimated from the original tyre size.
Wheel by wheel: offset and tyres
Each original wheel from Tesla Model X is compared with the one from Nio ES8 of the same diameter: how much closer the wheel gets to the shock absorber or how far it sticks out of the wheel arch, and whether the tyre keeps the same overall diameter.
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8.5Jx19 ET35 · 265/50R19 — Check on the car
Compared with the original ≈8Jx19 ET43 on Nio ES8: shock absorber side −1.7 mm, wheel arch side +14.4 mm, tyre diameter −2 % : fit it with the original tyre size of Nio ES8 (255/55R19), not that of Tesla Model X.
Comparison for guidance only (estimated width). Check in detail
Before fitting the wheels
An identical hub is not enough: offset, width and diameter change the position of the wheel, and larger calipers can touch a smaller wheel. Original wheels often use bolts or nuts with a specific seat: keep the fixings intended for the wheel, with the thread of Nio ES8 (- 14x1.50), tightened to the torque shown on its vehicle page. Finally, check that the size is among the approved fitments for your vehicle. This comparison is for guidance only: have the fitting approved by a professional.
And the other way round: wheels from Nio ES8 on Tesla Model X?