GEOS ball bearing (K): The ball bearing is particularly smooth-running and maintenance-free, as the lever handle is riveted to the inner ring of the ball bearing, allowing it to turn firmly. The outer ring of the ball bearing is permanently incorporated into the escutcheon support. This connection ensures additional hold of the lever handle set on the door leaf and is characterized by a high axial and radial load-bearing capacity. Without screws and pins, order separately depending on door thickness. Punching: PZ Model: GEOS 1754/D6K FH Object/fire protection: Object & fire protection Fire protection test: DIN 18 273 Rosette/long plate: Rosette Door thickness (mm): optional Square spindle (mm): directed for 9 Class to EN 1906: 4 Design: fixed pivot on escutcheons ball bearing Mounting accessories: to be ordered separately Surface: silver anodised Material: aluminium Brand: Grundmann Rosette (mm): ø 50 x 8 Style direction: authority form Content information (GT): 1.