backlash mode: MEAN BACKLASH

                                                PINION                     GEAR
    number of teeth:                                11                       53
    teeth ratio:                                              4.818182
    module (mm):                                              3.500000
    addendum modification coefficient:               0.250000         -0.796823
    cutting addendum modification coefficient:       0.211789         -0.835034
    hob tooth thickness increment (mm):              0.000000          0.000000
    standard pressure angle (deg.):                 25.000000         25.000000
    working  pressure angle (deg.):                          22.663148
    standard center distance (mm):                          112.000000
    working  center distance (mm):                          110.000000

    contact ratio @:                                          1.412108
    contact ratio * calculated by involute roll angle:        1.412108

    circular backlash, input value (mm):                      0.245000
    circular backlash, calculated to check (mm):              0.245000
    backlash equation mode: ZERO BACKLASH (gear industrial standard equation)
    PINION and GEAR teeth thinned each for 50% of backlash
    span measurement by caliper (mm):              16.620528          67.344088
    numbers of teeth spanned:                       2                         7
    over pin measurement (mm):                     47.544581         187.985507
    pin diameter (mm):                              6.048000           6.048000

    clearance between pinion top and gear root(mm):           1.008739
    clearance between gear top and pinion root(mm):           1.008739
    clearance between pinion top and hob root(mm):            0.827380
    clearance between gear top and hob root(mm):              0.827380
    effective tooth face width(mm):                          35.000000
    tooth depth or hob cutting depth (mm):           7.922620          7.922620
    circular tooth top thickness (mm):               0.987136          2.195033

    DIN tooth form factor, tip loading:              2.720367          2.584695
         balanced comparison:                        2.720367          2.584695
    AGMA geometry J factor, tip loading:             0.306589          0.277697
         balanced comparison:                        0.306589          0.277697
    AGMA Geometry I factor:                                   0.122823
    This program generates informatin on strength only as above. Refer to
    the corresponding DIN or AGMA standrads to complete strength calculation.

    diameter of root circle (mm):                   31.232522        170.904760
    diameter of base circle (mm):                   34.892850        168.120094
    diameter of intersection circle (mm):           34.897603        174.132320
    diameter of standard pitch circle (mm):         38.500000        185.500000
    diameter of working pitch circle (mm):          37.812500        182.187500
    diameter of outside circle (mm):                47.077761        186.750000
    diameter of maximum outside circle
    without hob root interference (mm):             52.317040        187.833322

    arc angle of approach action (deg.):                     18.243374
    arc angle of recess action (deg.):                       27.971059

    shortest distance between intersection
    and the mating tooth tip:                        0.003962          0.182217

    0.01 interference angle
    GEAR tooth tip access angle to PINION SAP (deg.):         6.393345
    PINION tooth tip access angle to GEAR SAP (deg.):         1.170033

    diameter of LC (mm):                            35.063930        176.326041
    diameter of LPSTC (mm):                         36.793651        178.973987
    diameter of HPSTC (mm):                         42.007321        183.323048
    diameter of HC (mm):                            47.077761        186.750000
    arc angle of 2-pair tooth contact(deg.):        26.974320          5.598444
    arc angle of 1-pair tooth contact(deg.):        19.240113          3.993231
 
    intersection: intersection of root fillet and involute 
    LC: lowest contact point or start of the active profile (SAP)
    LPSTC: lowest  point of single tooth contact
    HPSTC: highest point of single tooth contact
    HC: highest contact point or end of the active profile (EAP)
    When either pinion or gear is undercut distinctly,
    contact ratio @ and contact ratio * could be different from each other.
    Take the smaller value as contact ratio in such a case.