Taper Collet Flange Chucks BKFF Features • For clamping diameters from 7,2 mm to 73,6 mm • High true running accuracy ≤ 0,01 mm • Permissible component tolerance up to IT15 • Extended insertion depth • Pull-back against external backstop surface or internal backstop pin by the customer • For thin-walled or solid components Configuration The Taper Collet Flange Chuck consists of a draw plate, a seating body, a bayonet or threaded adapter and a Taper Collet. Depending on its size, the Taper Collet has a bayonet or threaded connection. It is taken up by the seating body in a form-fitting connection and connected via the bayonet or threaded connection with the bayonet or threaded adapter. The Taper Collet Flange Chuck is attached to the machine with the seating body. The Clamping Fixture is actuated by the draw plate, which is connected to the machine power actuating unit. Draw plate Seating body Bayonet or thread adapter Intermediate Flanges and Spring Force Actuators are shown starting on page 58. Taper Collet with bayonet or thread connection 14-2 Clamping principle For clamping, the Taper Collet is pulled against the seating body. The component is centred, pressed against the backstop and aligned flush. Key: Axial actuating force Radial clamping force Axial pull-back forc

Taper Collet Flange Chucks BKFF Centring diameter for customerinstalled backstop ring Backstop surface The minimum insertion depth Lemin. is measured from the face of the seating body and derived according to the following formula from the length of the chamfer Lf of the component and the constant K: Taper collet Please note Seating body Clamping range Maximum diameter change* * of the clamping diameter of the Clamping Element. • ** for clamping with pull-back action. 1) Please note the standard clamping ranges according to the table on the next page „Clamping Elements Taper Collets BKF“. 2)...