Page 167 - Parlec Catalog
P. 167

Evolution Angle Heads




                   High Precision Toolholding Solutions                                                                 165




                   ER COLLET SELECTION

                    ER STANDARD COLLET                        ƒ For use in ER collet chucks for drilling, reaming, boring,
                    (ER Standard Collets see page 55-56)      tapping, and milling.
                                                              ƒ Meets DIN 6499-B industry standard.
                                                              ƒ Collapse range .0393”(1 mm) maximum.
                                                              ƒ Size 11 collapse range .020”(1/2 mm) maximum.
                                                              ƒ For higher runout tolerance use HIGH CONCENTRICITY
                                                              GRADE AA, 5 Micron COLLETS
                    ER TAP COLLETS                            ƒ Designed for use with production ER Tapping tools.
                    (ER Tap Collets see page 61)              ƒ Provide maximum concentricity with positive driving force.

                    ER AA GRADE 5 MICRON COLLET               ƒ Evenly distributed cutting edges for high performance
                    (ER AA Grade 5 Micron Collets see page 57-58)  machining.
                                                              ƒ .0002” (5 micron) gage tolerance.
                                                              ƒ Exceeds DIN requirements.
                                                              ƒ Recommended use on size.
                                                              ƒ 12 slots, deburred and polished.
                                                              ƒ Increased grip force with reduced friction to collet seat.
                                                              ƒ Improve system performance and lower cost per piece when
                                                              used with a quality chuck.
                   ER COLLET SELECTION WITH COOLANT OPTIONS

                    ERS STEEL SEALED COLLET                   ƒ For use with regular straight shank tools.
                    (ER Steel Sealed Collets see page 59-60)    ƒ Withstands coolant pressure up to 1,800 psi.

                                                              ƒ Collet collapse is .005.”

                    COOLANT NUT SEAL SYSTEM                   ƒ Allows full range of collet when used with standard collets.
                    (Coolant Nut Seals see page 60)           ƒ Allows coolant seal with grade AA, 5 Micron collets.
                    (Coolant Nuts see page 62)
                                                              ƒ Prevents abrasive machining dust of chips from
                                                              contaminating collet system.
                                                              ƒ Seals up to 1,200 psi.








                    ER Standard          ER AA Grade     ERS Steel          ER Tap           Coolant      Collet
                    Collet               5 Micron Collet   Sealed Collet    Collet           Seal         Nuts

                          L
                                       ER COLLET SIZE      ER11       ER16       ER20       ER25     ER32      ER40

                                   D   LENGTH (L)          0.708      1.082      1.240      1.338    1.574     1.811
                                       DIAMETER (D)        0.452      0.669      0.827      1.023    1.300     1.614



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