Table 1 Main parameters of AMB

Rotor outer diameter

r₀ (mm)

8

Inner magnetic conducting ring outer diameter

r₁ (mm)

14

Inner magnetic conducting ring inner diameter

r₂ (mm)

17

Outer magnetic conducting ring inner diameter

r₃ (mm)

27

Outer magnetic conducting ring outer diameter

r₄ (mm)

30

Air gap length

g (mm)

0.35

Thrust plate thickness

h₁ (mm)

4

Axial length of winding slot

h₂ (mm)

6.4

Axial length of outside magnetic conducting ring

h₃ (mm)

8.5

Number of turns

N (turns/pole)

300

Bias current

I₀ (A)

0.5

Relative permeability

μ

1000

Conductivity

σ (S/m)

7.46 × 10⁶