
GBP 57 Clamping nuts Mini - for ER collet chucks DIN G 2.5 6499 25000 HSC min-1 Small external dimensions, case-hardened and ground on all faces. D M Suitable for: ER collet chuck Mini No. 300650; 300652; 300665; 300685; 305710; 305712; 305715; 300649; 300651; 300661; 300684; 300667; 300669; 305707; 305709; 305717; 305721; 305723. L 30 9605 for ER 8 11 16 20 25 30 9605 ER Mini clamping nut eShop eShop eShop eShop eShop 31Z L mm 11 12 18 19.5 21 ⌀ D mm 12 16 22 28 35 Thread M10×0.75 M13×0.75 M19×1 M24×1 M30×1 maximum tightening torque Nm 12 25 35 40 45 Accessories for CENTRO P − ER clamping nut and sealing ring Mini = all sizes with “M”, extremely slim design. MiniSlim = sizes with “MS”, extremely super slim design. Taper = all sizes with “C”. Standard= all other sizes. Note: FAHRION system ER clamping nuts type CP and sealing rings type HP do not fit on to other systems! FAHRION ER clamping nut CENTRO P HDC not suitable for standard ER collet chucks CENTRO P. Mini – size 11M, 16MS and 16MSDI. L 30 9655 – With trapezoidal thread for high clamping forces. Extra long double guidance of the ER clamping nut. ER clamping nuts coated for reduction of friction. Suitable for: FAHRION ER collet chuck CENTRO P and FAHRION ER collet chuck HDC. Optional extras: D 30 9655 – Sealing rings No. 309666 − 309668, precision ER collets No. 308878 - 308992, clamping wrenches No. 309754 − 309756, HP collets No. 309365 - 309379. Tapered – size 16C and 16CDI. Type CP for ER 8M 11M 16MS 16C 16 25 32 40 ER clamping nut CENTRO P 30 9655 eShop eShop eShop eShop eShop eShop eShop eShop 34F Standard Clamping range mm 1–5 1–7 1 – 10 1 – 10 1 – 10 2 – 16 2 – 20 3 – 26 L mm 12 16.2 20.9 23.2 23.4 25.6 26.9 31.5 ⌀ D mm 10 16 22 24 30 40 50 63 maximum tightening torque Nm 8 10 30 55 55 90 140 200 Thread M9×0.5 Tr14×0.75 Tr20×1 Tr21×1.5 Tr22×1.5 Tr32×1.5 Tr40×1.5 Tr50×1.5 Type CP for ER 16MSDI 16CDI 16DI 25DI 32DI 40DI ER clamping nut CENTRO P 30 9665 eShop eShop eShop eShop eShop eShop 34F for HP sealing rings Clamping range mm 1 – 10 1 – 10 1 – 10 2 – 16 2 – 20 3 – 26 L mm 23.9 26.2 26.4 28.9 30.1 34.8 ⌀ D mm 22 24 30 40 50 63 Standard – size 16, 25, 32 maximum tightening torque Nm 30 55 55 90 140 200 and 40 and size 16DI, 25DI, Thread Tr20×1 Tr21×1.5 Tr22×1.5 Tr32×1.5 Tr40×1.5 Tr50×1.5 32DI and 40DI. Sealing rings HP − for ER clamping nuts CP Vulcanised high-pressure sealing rings up to 80 bar. 0.5 mm clamping dia. range (+ 0.4 / − 0.1). L Note: ■ Sealing rings in 0.5 mm increments on request. ■ DI40 sealing rings on request. 30 D 30 9668 ⌀D L Clamping ⌀ (1 mm increments) mm 1 2 3...10 11...16 17...20 mm mm 30 9666 DI16 (eShop) (eShop) eShop – – 12.6 2 34F 34F Sealing ring HP for ER clamping nut CENTRO P 30 9668 DI32 – (eShop) eShop eShop eShop 26.2 2 954