Clamping nut ER (bearing shell nut) Reference: 004 99 01 04 .. Size D L G COD. Nm Quantity ER 25 42 22,5 M-32x1,5 004 99 01 04 05 140 ER 32 50 23 M-40x1,5 004 99 01 04 06 180 ER 40 63 28 M-50x1,5 004 99 01 04 07 240 ER 50 78 40 M-64x2 004 99 01 04 08 330 Supply options 000 001 99 04 01 .. Wrench for X-screws 002 31 .. .. .. Sealing discs for clamping nuts ER-system 004 99 01 01 .. Collet chucks nut (conventional) 004 99 01 02 .. Collet chuck nut (bearing nut) 004 99 01 03 .. Clamping nut (conventional) 004 99 01 04 .. Clamping nut ER (bearing shell nut) 004 99 01 04 03 Clamping nut ER 16 (Bearing shell nut) 004 99 01 06 .. ER Collet chuck nut (Mini) 004 99 01 08 .. Clamping nut ER 16 (conventional) 004 99 01 10 .. Clamping nut (Notch-free) 004 99 01 16 .. Clamping nut ZENTROLAIP (notch-free) 004 99 04 03 .. Wrench for DIN 6499 (ER Type) clamping nut 004 99 04 05 .. Wrench for DIN 6499 (ER Type) Mini clamping nut 004 99 04 06 .. Wrench for DIN 6499 (ER 16) clamping nut 004 99 04 07 .. Wrench for notch free nuts 004 99 04 09 .. Wrench for DIN 6388 clamping nut, Great Power Chucks & HPTC 004 99 31 .. .. Clamping nuts DIN 6499. ER System, for sealing discs 020 99 01 01 .. Wrench for Modular tooling 020 99 01 01 02 Wrench for ER-11 clamping nut 020 99 03 .. .. Wrench for drill chuck adapters