Variable nozzle turbocharger

Turbine blade pegs (TBP) intersperse a ring (20) of turbine blade bearings on-axis, each one being twist-proof at one end with a control blade and linked at the opposite end to a turbine blade lever (54). Rotary motion in an adjusting ring (30) is transferred onto the TBP compared to the ring of turbine blade bearings. Independent claims are also included for the following: (a) A control device for an exhaust gas turbocharger; (b) and for a turbine blade lever for a control device for an exhaust gas turbocharger.