Fufulu Puna ma Fufulu Mafolafola
Fa'amatalaga
O se mama e vaelua i le tasi itu ma punou i se foliga helical.O le mea lea e fa'atupu ai le malosi o le vaipuna i le va o le ulu o le fa'amau ma le mea'ai, lea e fa'atumauina malosi ai le fa'ameamea i le mea'ai ma le filo fa'amau i le nati po'o le filo mea'ai, e fa'ateleina ai le fete'ena'iga ma le tetee i le feliuliua'i.O tulaga fa'atatau o le ASME B18.21.1, DIN 127 B, ma le United States Military Standard NASM 35338 (muamua MS 35338 ma AN-935).
O fufulu vaipuna ose lima agavale ma fa'ataga le filo e fa'amau i le lima taumatau na'o le itu taumatau, o lona uiga o le fa'asaga i le uati.A fa'aaoga le gaioi e liliu ai le lima agavale, e ū le pito si'i i le pito i lalo o le fa'amau po'o le nati ma le vaega o lo'o fa'amau i ai, ma le mafai ai ona liliu.O le mea lea, e le aoga le fufulu vaipuna i filo lima agavale ma luga o le malo.E le gata i lea, e le tatau ona faʻaogaina faʻatasi ma se fufulu mafolafola i lalo o le fufulu vaipuna, aua o le mea lea e vavaeeseina ai le vaimea puna mai le u i totonu o le vaega e tetee i le liliu.
O le faʻamanuiaga o faʻamau loka o loʻo taoto i le foliga trapezoidal o le fufulu.A oomi i uta i tafatafa o le malosi faʻamaonia o le faʻamau, o le a mimilo ma faʻamafola.O lenei mea e faʻaitiitia ai le tautotogo o le sooga faʻapipiʻi lea e mafai ai ona faʻatumauina atili le malosi i lalo o le maualuga o le vibration tutusa.E taofia ai le matala.
TALOSAGA:
O le fufulu vaipuna e taofia ai nati ma fa'amau mai le liliu, se'e ma matala ona o le vibration ma torque.E ese'ese fo'i fufulu vaipuna e fa'atino lenei galuega i ni auala eseese, ae o le manatu fa'avae o le taofi lea o le nati ma le fa'amau.E ausia e nisi o fufulu vaipuna lenei galuega e ala i le u i totonu o mea faavae (bolt) ma le nati ma o latou pito.
O fufulu vaipuna e masani ona fa'aogaina i fa'aoga e aofia ai le vibration ma le mafai ona se'e o fa'amau.O alamanuia e masani ona fa'aogaina fufulu vaipuna e feso'ota'i ma femalagaiga (taavale, va'alele, gataifale).E mafai fo'i ona fa'aogaina mea fufulu vaipuna i mea faigaluega a le fale e pei o le ea ma fufulu lavalava (masini fufulu).
| Dk | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | (14) | |
| d | Min | 2.1 | 2.6 | 3.1 | 4.1 | 5.1 | 6.2 | 8.2 | 10.2 | 12.3 | 14.3 |
| Max | 2.3 | 2.8 | 3.3 | 4.4 | 5.4 | 6.7 | 8.7 | 10.7 | 12.8 | 14.9 | |
| h | 0.6 | 0.8 | 1 | 1.2 | 1.6 | 2 | 2.5 | 3 | 3.5 | 4 | |
| Min | 0.52 | 0.7 | 0.9 | 1.1 | 1.5 | 1.9 | 2.35 | 2.85 | 3.3 | 3.8 | |
| Max | 0.68 | 0.9 | 1.1 | 1.3 | 1.7 | 2.1 | 2.65 | 3.15 | 3.7 | 4.2 | |
| n | Min | 0.52 | 0.7 | 0.9 | 1.1 | 1.5 | 1.9 | 2.35 | 2.85 | 3.3 | 3.8 |
| Max | 0.68 | 0.9 | 1.1 | 1.3 | 1.7 | 2.1 | 2.65 | 3.15 | 3.7 | 4.2 | |
| H | Min | 1.2 | 1.6 | 2 | 2.4 | 3.2 | 4 | 5 | 6 | 7 | 8 |
| Max | 1.5 | 2.1 | 2.6 | 3 | 4 | 5 | 6.5 | 8 | 9 | 10.5 | |
| mamafa≈kg | 0.023 | 0.053 | 0.097 | 0.182 | 0.406 | 0.745 | 1.53 | 2.82 | 4.63 | 6.85 | |
| dk | 16 | (18) | 20 | (luasefulu lua) | 24 | (27) | 30 | 36 | 42 | 48 | |
| d | Min | 16.3 | 18.3 | 20.5 | 22.5 | 24.5 | 27.5 | 30.5 | 36.6 | 42.6 | 49 |
| Max | 16.9 | 19.1 | 21.3 | 23.3 | 25.5 | 28.5 | 31.5 | 37.8 | 43.8 | 50.2 | |
| h | 4 | 4.5 | 5 | 5 | 6 | 6 | 6.5 | 7 | 8 | 9 | |
| Min | 3.8 | 4.3 | 4.8 | 4.8 | 5.8 | 5.8 | 6.2 | 6.7 | 7.7 | 8.7 | |
| Max | 4.2 | 4.7 | 5.2 | 5.2 | 6.2 | 6.2 | 6.8 | 7.3 | 8.3 | 9.3 | |
| n | Min | 3.8 | 4.3 | 4.8 | 4.8 | 5.8 | 5.8 | 6.2 | 6.7 | 7.7 | 8.7 |
| Max | 4.2 | 4.7 | 5.2 | 5.2 | 6.2 | 6.2 | 6.8 | 7.3 | 8.3 | 9.3 | |
| H | Min | 8 | 9 | 10 | 10 | 12 | 12 | 13 | 14 | 16 | 18 |
| Max | 10.5 | 11.5 | 13 | 13 | 15 | 15 | 17 | 18 | 21 | 23 | |
| mamafa≈kg | 7.75 | 11 | 15.2 | 16.5 | 26.2 | 28.2 | |||||
