Каталог Iscar вращающийся инструмент 2017 - страница 950

USER GUIDE ER - Top Clamping Nut for DIN 6499 Collets Description Friction bearing ER nut is a nut with a unique two- Insertion Procedure piece exclusive friction mechanism, combining 1. Insert the collet at an angle, fitting the two extractor radial and angular self-centering movements. teeth which protrude (A) into the collet’s groove (B). 2. Place the two parts on a clean and horizontal work surface. Features 3. Press down with your thumb on the back end • Unique two-piece friction bearing of the collet until it clicks into place (C). • Radial and angular float for better concentricity • Powerful gripping force, 50-100% higher than the standard ER nut due to the friction bearing mechanism • Balanced for higher spindle spin due to unique extractor teeth design • Compact design - general dimensions and size range are the same as the standard nut ER, SC & SHRINK Collets • Designed for use with sealed collets Always assemble the collet into the nut before mounting onto the collet chuck. B Collet Groove A A Extractor Teeth C Important: Never insert the collet parallel to the extractor silver ring (D), with any of the key slots (E) of the nut. ring. Doing this will chip or break the extractor’s teeth. 2. Place the nut with the collet facing down on When unclamping the nut, the collet will a clean and horizontal work surface. self-release from the chuck by means of 3. Insert a screwdriver vertically between the extractor teeth. nut slots and the collet on the reverse side of the engraved diamond shape (D). 4. Tilt the screwdriver outwards, while helping Extraction Procedure the extraction by pushing the collet’s back 1. Align the engraved diamond shape which is on the end in the opposite direction (F). Nut type Kgxm E ER-11 5 D ER-11M 3 ER-16 7 ER-16M 4 ER-20 12 ER-20M 8 ER-25 20 ER-32 22 ER-40 25 ER-50 35 Note: For maximum performance the clamping nut thread and collet taper must be cleaned and oiled before use. Recommended Clamping Torque for Standard ER & ER-Top Clamping Nut Important: This torque is calculated with the maximum diameter capacity per collet which should be gradually reduced when used with a smaller shank size. F 946 ISCAR