7:00 pm | January 16, 2012
Author: ManufacturingET.org | Category: | Comments: None
LECTURE PRESENTATION
Reading Assignment
Outline
Applicable standards: ANSI B4.1, ANSI B4.2, ISO 286, ISO 1829, ISO 2768, EN 20286, JIS B 0401
- Clearance fit
- Transition fit
- Interference fit
Hole Tolerance Zones
Shaft Tolerance Zones
ISO Vs. ANSI System
- Running or sliding fits [RC]
This includes fits with guaranteed clearances which are specified for movable couplings of those parts which have to run or slide one against the other. - Locational fits [LC, LT, LN]
This includes clearance or interference fits specified for precise locational positioning of coupled parts. The coupled parts must be fixed mechanically to prevent one moving against the other during assembly. Depending on the locational positioning of tolerance zones of the coupled parts, 3 types of these fits may be distinguished: Clearance fits [LC], interference fits [LN] and transition fits [LT]. - Force or shrink fits [FN]
This includes guaranteed interference fits specified for fixed (non-demountable) couplings of parts.
