Software for calculating ISO tolerances and fits acc. to ISO, DIN, ANSI, BS. QMSys Tolerances & Fits is an engineering program for designers, engineers, metrologists, quality control planers, machinist and its purpose is to save time and prevent human errors in determining nominal and limit values of machine parts. It can be used to choose a fit and determine tolerances and deviations of machine parts according to the following international, European and national standards:
1. ISO 286, EN 20286, ANSI B4.2, GOST 25346 for nominal dimensions up to 3150 mm
2. DIN 7172, GOST 25348 for nominal dimensions over 3150 mm up to 10000 mm
3. ANSI B4.1 for nominal dimensions up to 200 inch
4. ISO 2768-1 for nominal dimensions without individual tolerance indications up to 3150 mm

The standard ISO 286 is used as an international standard for linear dimension tolerances and has been accepted in most industrially developed countries in identical or modified wording as a national standard - ANSI B4.2, GOST 25346, BS 1916, BS 4500, JIS B 0401, IS 919, AS 1654.
Using the QMSys Tolerances & Fits software the following tasks can be solved:
* Selection of suitable sizes from the preferred number series R5 to R80 according to ISO 3, ANSI Z17.1.
* Selection of suitable fits according to ISO 1829, ISO 286, DIN 7154, DIN 7155, DIN 7157 or ANSI B4.1
* Design of a ISO fit according to ISO 286 for given clearance or interference respectively
* Determination of dimensional tolerances and deviations of machine parts
* Calculation of bilateral symmetrical tolerances for CNC-programs
* Determination of non-prescribed limit deviations according to ISO 2768.
The fit design is processed automatically and after its completion, the calculation provides the user with a set of fits whose parameters meet the entered requirements

QMSys Tolerances & Fits Key Benefits:
1. QMSys Tolerances & Fits minimizes engineering time required to specify tolerances and fits of machine parts.
2. Calculations are based on international, European and national standards.
3. The software promotes specification of standard hole and shaft sizes, tolerances and fits to help lower operating cost.
4. It reduces cost of cutting tools, gages and material.
5. QMSys Tolerances & Fits is a totally flexible system which fits all tolerancing requirements.
6. Information is provided in both inches and millimetres.
7. Calculation reports in TXT, RTF, XML, XLS or HTML format.
8. Multi-language flexible and user-friendly interface.

Limitations:
* It is possible to calculate the parameters for a nominal size in the range of 8mm to 10 mm.

The license of this software is Free Trial Software, the price is EUR50.00, you can free download and get a free trial.