Welcome to the

International Spline Interface Standard web site.










The following document may be downloaded and viewed with the free Adobe Acrobat Reader plug-in (get it here). This document contains the complete ISIS Drive standard and consists of a textual description with seven attached drawing sheets. You must digitally “sign” a license agreement to download the standard document. This agreement serves to protect the individuals and companies involved in developing the ISIS Drive system from liability. The license does not contain any royalties or fees. Further, if you as a manufacturer wish to use the ISIS Drive mark on your products, you must actually sign a licensing agreement to use the mark. Again, the trademark agreement contains no royalties or fees, but merely serves to protect against liability and ensure the ISIS Drive mark is only used on ISIS Drive compatible products.


Please click the following link to read the license agreement and download the ISIS Drive standard document (2.96 MB – large, may take a while to download).


Download ISIS Drive Standard Document


The current version is at Revision D. Click here for revision history.