Table 1.

Parameters discussed in the simulation.

Parameter	Explanation	Value
$M$	Material of permanent magnet	NdFeB
$D_g$	Air gap distance	1, 2, 3, 4, 5, 6, 7, 8, 9 mm
$A_c$	Chamfer angle	45°, 60°, 75°
${\mu }_r$	Relative Magnetic Permeability	Fe (7000), Co (174), Ni (1120)
$S_d$	Square iron wear debris of different sizes	length of 0.2–0.5 mm
$v_d$	Wear debris velocity	1, 2, 3, 4, 5 m/s