
We designed this tool to help you calculate tolerances of inner and outer features of journal bearings, linear bearings, thrust bearings, bushings, ball bearings, roller bearings, housings, cylinder bores, drilled holes, linear and precision shafts, pistons, etc.No responsibility is taken for the completeness and correctness of displayed data.


It calculates upper limit, lower limit, maximum diameter, minimum diameter and range by simply entering a basic size and selecting the desired tolerance (DIN EN ISO 286 norm). ISO 2768 is mainly for parts that are manufactured by way of machining or removal of materials.Variations on dimensions without tolerance values are according to ISO 2768, all tolerance limits are given in mm.ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Our tool is a fit/tolerance calculator that is addressed to students, employees, and apprentices (trainees) in all technical sectors.
