This part of ISO 4156 specifies geometry and inspection dimensions for the design and manufacture of
straight (non-helical) side-fitting cylindrical involute splines.
Limiting dimensions, tolerances, manufacturing errors and their effects on the fit between connecting coaxial
spline elements are defined and tabulated. Linear dimensions are expressed in millimetres and angular
dimensions in degrees.
The specified diameters for external splines in the geometry tables and the values in the inspection dimension
tables are only valid for fundamental deviation “h”.
For fundamental deviations other than “h”, diameters and tooth thicknesses are calculated for external splines
according to the formulae in ISO 4156-1 and inspection dimensions according to the formulae in ISO 4156-3.
ISO 4156-2:2005 Referenced Document
ISO 4156-1:2005 Straight cylindrical involute splines - Metric module, side fit - Part 1: Generalities
ISO 4156-3:2005 Straight cylindrical involute splines - Metric module, side fit - Part 3: Inspection
ISO 4156-2:2005 history
2021ISO 4156-2:2021 Straight cylindrical involute splines - Metric module, side fit - Part 2: Dimensions
2011ISO 4156-2:2005/Cor 1:2011 Straight cylindrical involute splines - Metric module, side fit - Part 2: Dimensions; Technical Corrigendum 1
2005ISO 4156-2:2005 Straight cylindrical involute splines - Metric module, side fit - Part 2: Dimensions