Coated Do 3 Pc

The instrument model DO 3 PC is selected for testing of gearing deviations so that during evaluation it is possible to choose accuracy classification according to original DIN 3962 or AGMA 2000 and ~. Designation ~ allow direct instruction for evaluation in mm.
Deviation
Designation according
to DIN 3962, ISO 1328
Designation according to AGMA 2000

Adjacent pitch error
fp
Vp

Difference between adjacent pitches
fu
VS

Cumulative pitch error
Fp
Vap

Cumulative circular pitch error over a sector of z/8 pitches
Fpz/8
Vapk

Radial run-out
Fr
Vr

Total profile error
Ff
VF

Profile angle error
fHa
-

Profile form error
ff
-

Total alignment error
Fb
VY

Tooth alignment error
fHb
-

Longitudinal form error
fbf
-

Size of root dia Df
Df

Dimension across teeth
W/z

Dimension across balls
Mdk

Size of tip relief
fca

Size of cross and longitudinal modification (crowning)
Ca, Cb