Transcription of ISO taper DIN 69871 and MAS-BT JIS B 6339 tool holders ...
1 ISO taper DIN 69871 and MAS-BT JIS B 6339 tool holders Technical information and advantages Guhring has considerably expanded its ISO taper and Balancing MAS-BT tool holder program. Naturally, the tool holders Tool holders suitable for increased speeds are generally Information Technical are of the usual high Guhring quality. This means: ISO taper pre-balanced. For this purpose, we have determined and MAS-BT tool holders are produced in a special, alloyed the imbalance and entered the balancing areas as well case hardened steel with a minimum tensile strength at the as balancing bores on the drawings. This levels out the core of 900 N/mm2, hardened in a low distortion hardening imbalance to a large extent and up to approximately process to HRC 58 at a case hardening depth of to 8000 precision balancing is unnecessary. For mm. For reasons of longevity, the surface of the tool holder higher revolutions, the pre-balanced tool holders must be is subjected to an abrasive blasting process and protected precision balanced to G or G respectively.
2 Against Type AD/B. Quality through precision ISO taper tool holders generally produced are type AD/B. Guhring s demand for highest precision also applies to tool Supplied is type AD, the coolant bores at the collar are holders . Therefore, ISO taper and MAS-BT chucks are pre- sealed with screws. cision ground: in the vicinity of the ISO taper to Ra , at the holder face to Ra The taper tolerance is better General dimensions and tolerances than AT 3 with a measuring accuracy of 1 m. The following dimensions apply to our ISO taper and MAS- Detailed information regarding the form and positional to- BT tool holders : lerances can be found for the individual tool holders on the respective pages in the catalogue. The tolerances of the holder bore and the spigot are approximately 2/3 of the DIN. tolerance. l1 f3. SK DIN 69871 20 30. '. f2. f1 l6. a l7. taper 7:24. e1. d5. d8. d6. d2. d3. b d1. l5. e1. Rz a). b). d 9. e2. Ball- l5. 20 30 l1 20 30.
3 ' MAS-BT JIS B 6339 f2 '. f1. l6 l7 a l6 l7. d1. d2. d6. d3. d5. b e1. e1. 45 . 9. d e1. e1. 30 . 30 . d9. e2. e2. Kugel- . ISO a Ball b d1 d2 d3 d5 d6 d8 d9 e1 f1 f2 f3 l1 l5 l6 l7. taper . mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm SK40 7 M16 17 50 4 27 35 SK50 7 M24 25 80 6 42 35 BT40 10 M16 17 4 27 BT50 15 M24 25 42 GM 300 15.
