Buy ANSI BM (R) Metric Module, Involute Splines from SAI Global . ANSI B and B standards for Inch and Metric, respectively, spline. B and BM are still the current SAE spline standards. The selections differ only in the tolerance as applied to space widthand tooth thickness. * See American National Standard ANSI BM (R), Metric .

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HEXAGON Info Letter No.

The geometry can be selected conveniently b29.2m a data base. The profile search function can help the user to quickly identify a profile. An own input of involute spline geometry is also possible. The following tool types are available: Basic rack tooth profiles can be selected according to DIN for broaching, hobbing, shaping, cold rolling and diameter centering.

Internal and external spline teeth

Tool standard rack tooth profiles for the other standards are also available, e. All parameters for the basic rack tooth profile can be defined individually or determined automatically. This will determine the permissible deviations and tooth thickness allowances.


The calculation of the tooth thickness allowances can be done based on measured values or given test dimensions. Test dimensions, backlash normal plane and backlash pitch diameter are calculated as well. For the test dimensions, the required number of the teeth for span measurement and the diameter of ball or pin will be determined automatically by the program or can be entered by the user.

The display of the accurate tooth form is a special highlight. The tooth thickness is considered as well, so that the tooth form could then be used for manufacturing ans. The permissible surface pressures are determined from material properties, so it is possible to use special materials. Materials can be selected from the data base. For a different load input and output, the load factor according to DIN will be calculated based on the defined geometry.

In anis, load peaks and alternating torque amsi be specified for the calculation.


Dimensioning functions for the operation nominal torque, the maximum load peak torque and the supporting length help the user. The calculation results for the surface pressure and safeties for operation b2.2m and maximum load for shaft and hub are determined and displayed immediately during the input of values. After the calculation is finished, a calculation report can be generated.

The report includes the calculation method, all important input values and detailed results. Input of geometry data.

Input of tool data. Input of data for determination of allowances.

Representation of accurate tooth form. Strength calculation according to Niemann. Imprint Print to Top.