Drive unit for machine tool, has bearing unit and drive shaft accommodated in housing, measuring indication arranged on clamping unit and sensing unit arranged on housing to scan measuring indication

摘要

The drive unit has front and rear (3) bearings disposed in a housing (1) defining an axis. A drive shaft (4) accommodated in the housing is supported by the bearings. A clamping unit (6) braces the drive shaft with the bearings in an axial direction. A magnetic or optical measuring indication (8) is arranged on the clamping unit and a sensing unit is arranged on the housing to scan the measuring indication.