ER-SPR-AA :  DIN 6499 'AA' ultra precise ER spring collets with HARD TOUCH coating which increases wear resistance, improves corrosion protection, prolongs the surface finish quality and maintains longer run-out accuracy.  
 
 
CONCENTRICITY .0002 HARDNESS 46-48 SURFACE FINISH N5
  Designation
SS		 d2
min		 d2
max
  ER11 SPR .022-.041 AA  ER11  .020  .039
  ER11 SPR .041-.080 AA  ER11  .039  .079
  ER11 SPR .080-.120 AA  ER11  .079  .118
  ER11 SPR .120-.159 AA  ER11  .118  .157
  ER11 SPR .159-.199 AA  ER11  .157  .197
  ER11 SPR .199-.238 AA  ER11  .197  .236
  ER11 SPR .238-.278 AA  ER11  .236  .276
  ER16 SPR .022-.041 AA  ER16  .020  .039
  ER16 SPR .041-.080 AA  ER16  .039  .079
  ER16 SPR .080-.120 AA  ER16  .079  .118
  ER16 SPR .120-.159 AA  ER16  .118  .157
  ER16 SPR .159-.199 AA  ER16  .157  .197
  ER16 SPR .199-.238 AA  ER16  .197  .236
  ER16 SPR .238-.278 AA  ER16  .236  .276
  ER16 SPR .278-.317 AA  ER16  .276  .315
  ER16 SPR .317-.356 AA  ER16  .315  .354
  ER16 SPR .356-.396 AA  ER16  .354  .394
  ER20 SPR .041-.080 AA  ER20  .039  .079
  ER20 SPR .080-.120 AA  ER20  .079  .118
  ER20 SPR .120-.159 AA  ER20  .118  .157
  ER20 SPR .159-.199 AA  ER20  .157  .197
  ER20 SPR .199-.238 AA  ER20  .197  .236
  ER20 SPR .238-.278 AA  ER20  .236  .276
  ER20 SPR .278-.317 AA  ER20  .276  .315
  ER20 SPR .317-.356 AA  ER20  .315  .354
  ER20 SPR .356-.396 AA  ER20  .354  .394
  ER20 SPR .396-.435 AA  ER20  .394  .433
  ER20 SPR .435-.474 AA  ER20  .433  .472
  ER20 SPR .474-.514 AA  ER20  .472  .512
  ER25 SPR .041-.080 AA  ER25  .039  .079
  ER25 SPR .080-.120 AA  ER25  .079  .118
  ER25 SPR .120-.159 AA  ER25  .118  .157
  ER25 SPR .159-.199 AA  ER25  .157  .197
  ER25 SPR .199-.238 AA  ER25  .197  .236
  ER25 SPR .238-.278 AA  ER25  .236  .276
  ER25 SPR .278-.317 AA  ER25  .276  .315
  ER25 SPR .317-.356 AA  ER25  .315  .354
  ER25 SPR .356-.396 AA  ER25  .354  .394
  ER25 SPR .396-.435 AA  ER25  .394  .433
  ER25 SPR .435-.474 AA  ER25  .433  .472
  ER25 SPR .474-.514 AA  ER25  .472  .512
  ER25 SPR .514-.553 AA  ER25  .512  .551
  ER25 SPR .553-.593 AA  ER25  .551  .591
  ER25 SPR .593-.632 AA  ER25  .591  .630
  ER32 SPR .080-.120 AA  ER32  .079  .118
  ER32 SPR .120-.159 AA  ER32  .118  .157
  ER32 SPR .159-.199 AA  ER32  .157  .197
  ER32 SPR .199-.238 AA  ER32  .197  .236
  ER32 SPR .238-.278 AA  ER32  .236  .276
  ER32 SPR .278-.317 AA  ER32  .276  .315
  ER32 SPR .317-.356 AA  ER32  .315  .354
  ER32 SPR .356-.396 AA  ER32  .354  .394
  ER32 SPR .396-.435 AA  ER32  .394  .433
  ER32 SPR .435-.474 AA  ER32  .433  .472
  ER32 SPR .474-.514 AA  ER32  .472  .512
  ER32 SPR .514-.553 AA  ER32  .512  .551
  ER32 SPR .553-.593 AA  ER32  .551  .591
  ER32 SPR .593-.632 AA  ER32  .591  .630
  ER32 SPR .632-.671 AA  ER32  .630  .669
  ER32 SPR .671-.711 AA  ER32  .669  .709
  ER32 SPR .711-.750 AA  ER32  .709  .748
  ER32 SPR .750-.789 AA  ER32  .748  .787
  ER40 SPR .120-.159 AA  ER40  .118  .157
  ER40 SPR .159-.199 AA  ER40  .157  .197
  ER40 SPR .199-.238 AA  ER40  .197  .236
  ER40 SPR .238-.278 AA  ER40  .236  .276
  ER40 SPR .278-.317 AA  ER40  .276  .315
  ER40 SPR .317-.356 AA  ER40  .315  .354
  ER40 SPR .356-.396 AA  ER40  .354  .394
  ER40 SPR .396-.435 AA  ER40  .394  .433
  ER40 SPR .435-.474 AA  ER40  .433  .472
  ER40 SPR .474-.514 AA  ER40  .472  .512
  ER40 SPR .514-.553 AA  ER40  .512  .551
  ER40 SPR .553-.593 AA  ER40  .551  .591
  ER40 SPR .593-.632 AA  ER40  .591  .630
  ER40 SPR .632-.671 AA  ER40  .630  .669
  ER40 SPR .671-.711 AA  ER40  .669  .709
  ER40 SPR .711-.750 AA  ER40  .709  .748
  ER40 SPR .750-.789 AA  ER40  .748  .787
  ER40 SPR .789-.829 AA  ER40  .787  .827
  ER40 SPR .829-.868 AA  ER40  .827  .866
  ER40 SPR .868-.907 AA  ER40  .866  .906
  ER40 SPR .907-.947 AA  ER40  .906  .945
  ER40 SPR .947-.986 AA  ER40  .945  .984
  ER40 SPR .986-1.025 AA  ER40  .984  1.024

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