Paragraph Number

330

The three types of fit are: Clearance: The hole is larger than the shaft, enabling the two parts to slide and/or rotate when assembled, e.g., piston & valves; Location/transition: The hole is fractionally smaller than the shaft and mild force is required to assemble/disassemble e.g., Shaft key; and Interference: The hole is smaller than the shaft and high force and/or heat is required to assemble/disassemble e.g., Bearing bush.

Added by DJM 9 2021