Bonded Disc Pack Flange Mandrels LBDF Features • For clamping diameters from 18 mm to 140 mm • High true running accuracy ≤ 0,01 mm • Permissible component tolerance up to IT11 • Short or long clamping length possible • Pull-back against external backstop surface or external backstop ring by the customer • For thin-walled or solid components • Hand clamping optional possible • Impervious to ingress of foreign objects due to the rubberized slots in the Bonded Disc Pack Seating body Backstop ring (by customer) Shoulder ring The Bonded Disc Pack Flange Mandrel consists of a seating body, a shoulder ring, a Bonded Disc Pack, a thrust ring and a mushroom bush. A plate with a threaded bore is optionally available for hand clamping. The Bonded Disc Pack Flange Mandrel is attached to the machine with the seating body. The Clamping Fixture is actuated by the central bolt of the mushroom bush, which is connected to the machine power actuating unit. Depending on the required transmitted torque, Bonded Disc Packs of different widths may be installed. The required installation situations for the shoulder ring are shown in Fig. 27-2. Bonded Disc Pack Thrust ring Mushroom bush Intermediate Flanges and Spring Force Actuators are shown starting on page 58. 26-2 Clamping principle The Bonded Disc Pack sits pre-loaded on the seating diameter of the seating body. When axial actuating force is applied, the Bonded Disc Pack is raised to an upright position. The component is centred, pressed against the shoulder ring or the backstop and aligned flush. The tipping movement of the Bonded Disc Pack converts the axial actuating force into a radial clamping force that is up to ten times higher. Key: Axial actuating force Radial clamping force Axial pull-back

Bonded Disc Pack Flange Mandrels LBDF Installation situations possible backstop surface Wa DIN 974 -1 Series 1 up to LBDF 60 (4 x 90°) as of LBDF 70 (8 x 45°) Bonded disc pack widths Lb1 and Lb2 Backstop ring (by customer) Bonded disc pack width Lb3 LBDF 11 LBDF 15 LBDF 20 LBDF 25 LBDF 30 LBDF 35 LBDF 40 LBDF 45 LBDF 50 LBDF 60 LBDF 70 LBDF 80 LBDF 90 LBDF 100 Achievable clamping diameter Maximum diameter change** Bonded disc pack width Lb1 Bonded disc pack width Lb2 Bonded disc pack width Lb3 * Clamping diameter from > up to ≤ adjustable to two places after the decimal point • ** of the clamping...