TR 4271 : 1
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
AEROSPACE SERIES - O-RINGS GROOVES - DESIGN CRITERIA FOR O-RING GROOVES - BASIC CALCULATIONS
Hardcopy , PDF
23-07-2013
English
0 Introduction
1 Scope
2 Normative references
3 Symbols
4 Generals
4.1 Rubber families concerned
4.2 Permissible pressures
5 O-ring housings
5.1 Radial sealing
5.1.1 Rod housings
5.1.2 Bore housings
5.2 Axial sealing
5.2.1 Face seals for internal pressure
source
5.2.2 Face seals for external pressure
source
6 Factors influencing the quality of sealing
6.1 Surface roughness
6.2 Corner and edge radii
6.3 Lead-in chamfers
6.4 Groove run-out tolerance
6.5 Housing diameter tolerances
6.6 Housing width and depth
6.6.1 Housing width (b)
6.6.2 Housing depth (h or t)
6.7 Stretch and compression o-ring
6.7.1 Radial sealing
6.7.2 Axial sealing
7 Method of calculating housing dimensions
7.1 Radial application - Piston housing
7.2 Radial application - Rod housing
7.3 Axial application - Internal pressure
7.4 Axial application - External pressure
8 Design criteria
8.1 O-ring stretch or compression
8.1.1 Rod housing
8.1.2 Bore housing
8.1.3 Axial housing
8.2 Cross-section reduction
8.3 O-ring squeeze (e)
8.4 O-ring swell
8.5 Housing widths
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