Type B - without keyway + Bore-diameter
Type K - with keyway + Bore-diameter
Type R - with revolving retractable handle GN798.3
GN322.3 Spoked Safety Handwheel, with Retractable Handle.
These spoked handwheels with retractable handle are designed for applications where the handpiece must not protrude.
These hand wheels have the distinguishing feature that the handle and the retracting mechanism are completely encased within the rim of the wheel.
The handle is pulled out of its taper seating in the direction of the arrow and then tilted. A compression spring locks the handle in both end positions.
A positive lock is achieved in the operating position by way of a taper seating.
Aluminium Gravity die casting.
Hub - machined.
Rim - turned and polished, concentric and square to bore.
Body - unmachined, matt shot-blasted.
Parts for retracting mechanism - Steel, blackened.