Woven metallic yarns built into the oil seal route induced shaft current to the motor housing, preventing bearing corrosion without a separate ground ring.
A sliding contact and annular carrier create a continuous grounding path for the rotor carrier, preventing bearing currents and oil-fouled contact.
A bracket-supported terminal creates a direct frame-ground path while resisting external terminal force that would otherwise deform the connection terminal.
An elastic support body creates a permanent shaft-to-housing discharge path that prevents rolling bearing damage from rotor charge buildup.
A grounded motor frame linked by a flexible wiring board and spring suppresses electromagnetic noise and protects nearby electronics.
A conductive sleeve gives the grounding brush a durable sliding surface that resists oxidation, keeps contact resistance low, and protects bearings.
Retention hooks on the brush support lock into a simple mounting plate bore to cut vibration, discharge risk, and attachment cost.
An anti-rotation lug keeps the grounding brush in contact with its mounting plate, reducing wear, heating, and electro-erosion.
A seal placed between the bearing and shaft neutralizing device blocks oil and refrigerant contamination, preserving grounding conductivity.
Conductive plastic in the fuel pump housing bleeds static charges to ground, reducing spark and combustion risk during fuel delivery.
Limiting bond magnet axial length cuts bearing voltage in motors, suppressing electrolytic corrosion, vibration, and noise.