Characgteristic of built-in spindle
Realizing the high speed rotation and miniaturizing by combine spindle
and motor.
Points of quallity
To minimize the ronout, dinamic ballance is important.
Due to the heat generating in bearing near motor, selecting the cooling method and material.
Achievement of cartridge spindle
Fabrication of cartridge spindle has long history for 40 years and mass
production 1000 units in a year.