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, while 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. Perforation: WC. Model: GEOS 1754/D6KO. Object/Fire protection: Object. Rosette/Long plate: Rosette. Door thickness (mm): optional. Square spindle (mm): aligned for 8.5. Design: Fixed pivotable on escutcheons ball bearing. Fire protection test: No. Surface: matt. Class to EN 1906: 4. Fixing accessories: to be ordered separately. Material: stainless steel. Brand: Grundmann. Rosette (mm): ø 50 x 8. Style direction: authority form. Content information (GT): 1.