BS ISO 4156-3:2005

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Reference conditions
6 Quality features
   6.1 General
   6.2 Size
   6.3 Location
   6.4 Form
7 Methods of inspection
   7.1 Size
   7.2 Location
   7.3 Form
8 Measurements with balls or pins
   8.1 General
   8.2 Selection of balls or pins
   8.3 Use and marking of pins
   8.4 Statistical actual tolerance limit STA
   8.5 Calculation of ball or pin diameter (D[Re] or D[Ri])
   8.6 Calculation of dimensions for ball or pin
        inspection (part and gauge inspection)
9 Measurement over k teeth - External splines (W)
   9.1 Calculation of W
   9.2 Choice of k
10 Gauges
   10.1 Generalities
   10.2 Length of measuring part of gauges
   10.3 Manufacturing tolerances for spline
        gauges
   10.4 Values of deviation allowances of spline gauges
   10.5 Inspection of gauges
   10.6 Dimensions, designation and marking of gauges
11 Measurement of spline deviations
   11.1 General
   11.2 Total profile deviation F[alpha]
   11.3 Total cumulative pitch deviation F[p]
   11.4 Total helix deviation F[beta]
Annex A (informative) Influences of eccentricity and pitch
                      deviation as explained in
                      ISO 4156:1981

Gives data and guidance for the inspection of straight (non-helical) side fitting cylindrical involute splines.