ISO 368:2017 download.Spinning preparatory spinning and doubling (twisting) machinery — Tubes for ring-spinning, doubling and twisting spindles, taper 1:38 and 1:64.
1 Scope
ISO 368 specifies the dimensions (length and inner diameter) and permissible total run-out tolerances of tubes with taper 1:38 and 1:64 for ring-spinning, doubling and twisting spindles used in the textile Industry. It also specifies the dimensions and tolerances of the gauges for checking the tubes.
2 NormatIve references
The following dccuments are referred to in the text in such a way that some or all of their content constitutes requirements of ISO 368. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 286-2. Geomerncal produa specijicotioris (GPS) — ISO code system for tolerances on linear sizes — PUrL 2: Tables of standard tolerance classes and limit deviations for holes and shafts
3 Terms and definitions
No terms and definitions are listed en ISO 368.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
4 Types, dimensions and tolerances
4.1 Tubes
4.1.1 Tube types
Plain top tubes ss shown in Figure 1 a) shall be designated as type A tubes. Rolled-in top tubes as shown In Fiaure I b) shall be designated as type 13 tubes,
4.1.2 Dimensions
Thbe szes shall be chosen from the dimensions specified In Table 1.
4.13 Total run-out tolerance
The permissible total run-out tolerance. T., shall be n accordance with the values specilied in Table 1. The total run-mit shall be measured in accordance with Figure 2.
4.2 Gauges
Gauges shall conform to the dimensions and tolerances specified in Table 2.
6 Designation
6.1 Tubes
The designation ol a tube in accordance with ISO 368 shall comprise the lollowing information, in the order given:
a) Tube
b) a reference to this document, i.e. ISO 368;
c) the aper (1 :38 or 1:64):
d) the type ol tube (I.e. A or B);
e) the length j;
f) the number of the row
U necessary further information may be given by agreement between the customer and the supplier. EXAMPLE A tube with taper 1:64. type H with rolled-In top. otlength I, 130mm and row 2 Is designated as Voflows
Thbe ISO 368- 1:64 B- 230/2.