Program for calculation by the method of integral temperature

PROGRAM
Data values Geometrical values Factors
z1 numbers of teeth on the pinion

da1 tip circle on the pinion

mm

Approach factor XQ

z2 numbers of teeth on the wheel

da2 tip circle on the wheel

mm

Contact ratio factor

mn normal modul

mm

db1 base circle on the pinion

mm

Tip relief factor Ca

gears accuracy is 6 or better
less accurate gears
pressure angle

stopinj

db2 base circle on the wheel

mm

Geometry factor at pinion tooth tip XBE

KA application factor (ISO 6336-1)

a center distance

mm

Temperatures
Ft nominal tangential load

N

addendum contact ratio of the pinion

Flash temperature

K

b tooth widht

mm

addendum contact ratio of the wheel

Mean flash temperature

K

c' single stifness (ISO 6336-1)

N/(micro m * mm)

is the maximum value of or

Bulk temperature

degrees C

mesh stifness (ISO 6336-1)

N/(micro m * mm)

approach contact ratio

Integral temperature

degrees C

pressure angle factor (ISO 6336-1)

reccess contact ratio

XM thermal flash factor (ISO 6336-1)

pinion drives the wheel
pinion is driven by the wheel
XE run-in factor (ISO 6336-1)

contact ratio,

coefficient of friction (ISO 6336-1)

Ceff effective tip relief

micro m
for spur gears
for helical gears

XS lubrication factor
for spray lubrication
for dip lubrication
for gears submerged in oil
Ca nominal tip relief

micro m

C1- constant accounting for heat
transfer conditions, C1 = 0,7

number of contact np on the pinion

v pitch line velocity

m/s

C2 weighting factor C2=1,5
Ca1 actual tip relief of pinion

micro m

Ca2 actual tip relief of wheel

micro m

oil temperature

degrees C

permissible integral temperature

degrees C