Bore code B - without keyway + Bore-diameter.
Bore code K - with keyway + Bore-diameter.
Bore code V - square - on request.
Type A - without handle.
Type D - with revolving handle DIN98
GN950.1 Spoked Handwheel With Large Hub, Cast Iron.
These handwheels, GN 950.1, have a larger hub than usual, and are for those applications where the hub on a standard handwheel is too small.
They differ from the standard handwheels DIN950 only by the larger hub.
Cast iron - Hub machined, Rim tuned and polished, GG.
Rim contentric and square to bore < 0,4
Revolving handles DIN98.