What are the 3 classes of fit?

1. Clearance – A fit type where clearance exists between assembled parts under all tolerance conditions.
2. Transition – A fit type where clearance or interference can exist between assembled parts depending on tolerance conditions.
3. Interference – A fit type where interference exists between assembled parts under all tolerance conditions.

See the – Limits, Fits & Tolerances Presentation .

See the below tables on Limits & Fits information.