Clear tables providing upper (O) and lower (U) deviations, usually in micrometers (μ m).
A transition fit falls between a clearance and an interference fit. Depending on the actual manufactured dimensions of the individual parts, the assembly may result in either a slight clearance or a slight interference. din 7161 pdf extra quality
If you can tell me (e.g., H7, G6) or size range you are working with, I can help explain how to apply it or point you towards the exact table you need. DIN 7161 - 1965-08 Clear tables providing upper (O) and lower (U)