Program 60-710Involute Splines and Inspection Introduction The primary purpose of this model is to provide data from ANSI Standard B92.1-1970 for Involute Splines and Inspection.
This is the standard for inch-series splines based on a stub diametral pitch design.
It is possible to use the model to convert the dimensions to metric, but the basic calculations are always based on diametral pitch and the inch system.The model will automatically calculate data for splines and gages in accordance with the standard.
If data is entered for a modified spline, the model will indicate that the spline is not standard and will then calculate data for measurements and gages for the modified spline.Plots of the assembled and individual splines are available on the Plot Sheet of the TK Solver model.
The plots are of the mean actual tooth thickness.For information on the proper use and interchangeability of splines and gages refer to the standard.In some cases the dimension given by the software will be slightly different than the data in the tables in the standard.
The software uses the equations given in Appendix A of the standard and the user must decide which value should be used.UTS Integrated Gear Software Example 1 The first example is a 26 tooth, 10/20 diametral pitch, side fit, fillet root spline.
A Class 5 tolerance is desired on both the internal and external splines.
(Different tolerance classes can be used on each spline if desired.)
The spline length is 1.5 inches, which we enter in order to obtain analytical checking data for the tooth alignment.
We also wish to use the Standard gaging method and will print all data needed to manufacture the gages including tapered external masters to calibrate the ring gages for the external spline.Enter the data as shown in Figure 1-1.
Click Yes when prompted for spline length values and for plot tic marks.
Report 1 gives the input and output values for the solved model.Fig.
1-1 60-710Involute Splines and Inspection Report 1
Model Title :Program 60-710 Unit System: COMMON
Number of Teeth 26
Diametral Pitch 10.000000 1/in `
Stub Pitch 20.0000 1/in `
Spline Pitch 10/20
Standard Pressure Angle 30.0000 deg
Type of Fit ('maj or 'side Def='side) side
Pitch Diameter 2.6000000 in
Base Dia 2.2516660 in
Max_Effective Clearance 0.0028 in
Min_Effective Clearance 0.0000 in
COMMON: Theoretical from Measured Teeth Max_Actual Clearance 0.0064 in