Threading Technology – Clamping Technology 520

636 Tap Holders Soft- synchro Speed- synchro KSN MQL SFM HF EM Accessories Tech. Info Product Finder 5. Tighten the clamping nut with the wrench. Observe the rec. torque values in the table. Type Recommended Tightening Torque ft lbs Nm Hi-Q/ERM 8 4 6 Hi-Q/ERM 11 9 12 Hi-Q/ER 11 10 14 Hi-Q/ER 50 221 300 Hi-Q/ERMC 11 9 12 Hi-Q/ERMC 16 18 24 Hi-Q/ERMC 20 21 28 Hi-Q/ERMC 25 24 32 Hi-Q/ERC 11 10 14 Hi-Q/ERC 16 30 40 Hi-Q/ERC 20 24 32 Hi-Q/ERC 25 59 80 Hi-Q/ERC 32 66 90 Hi-Q/ERC 40 133 180 Hi-Q/ERBC 50 AF 221 300 2 1 The indicated values apply to collets type ER-GB. The maximum tightening torque must not be more than 25% above the recommended tightening torque. Higher tightening torque may result in the damage of the collet. For the setting of the correct torque, we recommend using a torque wrench, see page 623. Important: In order to avoid damage to the holder, please counter with open-ended spanner 2 while tightening the clamping nut with wrench 1 . For suitable tool sets, see pages 621 - 622. 7.2 Assembly of sealing disk, collet and tool Assembly of sealing disk in the sizes 1-5 1. Insert the sealing disk into the clamping nut as shown in the illustration, and push it forward until you can clearly hear it engaging. After that, the sealing disk is flush with the clamping nut. In size 0 , you can use clamping nuts with integrated sealing system – a separate sealing disk is not needed then. The clamping nut must be selected in accordance with the clamping diameter used. Click! 2. Insert the collet into the clamping nut, then tilt it. The groove of the collet must engage in the eccentric ring of the clamping nut at the marked position. Now, tilt the collet in the opposite direction until you clearly hear it engaging. Marking (position depends on type of nut) Groove of collet Eccentric ring Click! 3. Screw the clamping nut with the engaged collet onto the thread of the holder. Important: Only screw on clamping nuts with correctly engaged collet! 4. Insert tool. Important: If you use a collet with integrated square, make sure to turn the tool around until it is in a position that allows it to be pushed into the square seat of the collet.