Diametrni hisoblash usuli
Qo'shimcha doira diametri=(tishlar soni va 2ga)modul
Indeks doirasining diametri=tish moduli soni
Tish ildizi doira diametri=(tishlar soni-2ga-2hc)modul
Standart viteslar uchun: ha=1,hc=0.25; boshqa standart bo'lmagan{3}}viteslar boshqasini oladi
Masalan: M4, tish 32
Qo'shimcha doira diametri=(32 plyus 21)4=136mm
Indeks doira diametri=324=128mm
Tish ildizi doira diametri=(32-21-20,25) 4=118mm
Ushbu hisoblash usuli barcha modulli uzatmalar uchun qo'llaniladi (o'zgartirish viteslaridan tashqari).
Modul tishli tishlarning o'lchamini ifodalaydi.
Gear modulus = index circle diameter ÷ number of teeth
Tishli modulni tanlash
Tishli modul uchun milliy standart GB1357-78.
Afzal modul: {0}}.1mm, 0.12mm, 0.15mm, 0.2mm, {{10}}. 25mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, 1mm, 1.25mm, 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm , 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 20 mm, 25 mm, 32 mm, 40 mm, 50 mm;
Ixtiyoriy modullar: 1,75 mm, 2,25 mm, 2,75 mm, 3,5 mm, 4,5 mm, 5,5 mm, 7 mm, 9 mm, 14 mm, 18 mm, 22 mm, 28 mm, 36 mm, 45 mm;
Kamdan kam qo'llaniladigan modul: 3,25 mm, 3,75 mm, 6,5 mm, 11 mm, 30 mm;
