INPUT BASIC DATE:

-the number of teeth of the gear Z1:
-the number of teeth of the gear Z2:
-normal modul (mm):
-angle of inclination-beta ( o):
-slope angle-alfan ( o):
-center distance-ao (mm):
-stress-sigma (N/mm2):

WRITE DATE FOR K ( for other standard ):

-application factors KA:
-internal dinamic factor KV:
-face load factor KFbeta:
-face load factor KHbeta:
-transverse load factor KFalfa:
-transverse load factor KHalfa:


Ramax(microm) 0,025 0,05 0,1 0,2 0,4 0,8 1,6 3,2 6,3 12,5 25 50

Roughness in the tooth-root fillets of the gear:

Roughness Rzk of the test piece notch-root:



ST-stell, V-through-hardening stell, GG-grey cast iron, GGG-nodular cast iron, GTS-black malleable cast iron, Eh-case-hardening stell, IF-stell and GGG,flame or induction hardened, NT-nitriding stell, NV(nitr.)-through-hardening and case-hardening stell(nitrided), NV(nitricar.)-through-hardening and case-hardening stell(nitrided).

Material Koeficient ro
GG SIGMA B=150 N/mm 0,3124
GG,GGG(ferr.) SIGMA B=300 N/mm 0,3095
NT,NV 0,1005
St. SIGMA S=300 N/mm 0,0833
St. SIGMA S=400 N/mm 0,0445
V,GTS,GGG (perl.bai.) SIGMA B=500 N/mm 0,0281
V,GTS,GGG (perl.bai.) SIGMA B=600 N/mm 0,0194
V,GTS,GGG (perl.bai.) SIGMA 0,2=800 N/mm 0,0064
V,GTS,GGG (perl.bai.) SIGMA 0,2=1000 N/mm 0,0014
Eh,IF 0,0030

Choose slip-layer thickness - ro:



SELECT FACTORS, WHICH YOU WANT TO CALCULATE:

Sensitivity factors:

Relative notch sensitivity factors:

Surface factors:

Relative surface factors:

Size factors







SENSITIVITY FACTORS:

  • $Y_{Rk}$

    • Method Bp

    Method Cp



  • $Y_{Rk}$


  • $Y_{Rk}$

    • RELATIVE NOTCH SENSITIVITY FACTORS:

  • $Y_{Rk}$

    •

    Method C

    Method D



  • $Y_{Rk}$

    •

    Method Ck

    SURFACE FACTORS:

  • $Y_{Rk}$

    • Method Bp

    Method Cp



  • $Y_{Rk}$




  • $Y_{Rk}$


    • Method Bk

    Method Ck



    RELATIVE SURFACE FACTORS:

  • $Y_{Rk}$

    • Method C

    Method D

      Reference, static stress and limited life

    YRrelT=0.9 (for all material)

  • $Y_{Rk}$


    • Method Ck



    SIZE FACTORS:

  • $Y_{Rk}$