CNC INTERNAL GRINDING SPINDLE

PRODUCT MODEL

HSG920

Outer Diameter：90 mm

Max. Speed：20,000 rpm

Bearing Lubrication：Grease

Bearing size：Ø25

Working position：Horizontal

PS9059

Outer Diameter：90 mm

Max. Speed：10,000 rpm

Bearing Lubrication：Grease

Bearing size：Ø25 Ø30

Working position：Horizontal

CNC internal grinding spindles are the core components used in CNC grinders or specialized internal grinding machines to drive the grinding wheel for high‑precision machining of internal bores. They integrate high‑speed drives, precision bearings, and cooling systems to achieve the high rotational speeds and strict control of roundness and surface finish required for micro‑hole and deep‑hole grinding.There are three common drive configurations: belt-driven, direct-drive motors, and integrated (built‑in) motors, each offering different levels of machining rigidity and responsiveness.