May 6, 2009
Renard R5, R10, R20, R40 Geometric Series of Numbers
When a choice can be made, use one of these sizes; however, not all parts or items are available in all the sizes shown in the table.
The most commonly used International tolerance grade numbers are IT6 through IT16, and these are based on the Renard R5 geometric series of numbers.
Labels: Engineering Standards and Codes, feature, Limits And Fits, Machine Design