BS ISO 6099:2018 pdf download

BS ISO 6099:2018 pdf download.Fluid power systems and components — Cylinders — Identification code for mounting dimensions and mounting types
1 Scope
This document establishes a convention for the identification of mounting dimensions and types used in the mounting of fluid power cylinders. It specifies a code for identifying cylinder mounting, envelope,accessory and connector dimensions, and for cylinder mounting and accessory types.
This document does not represent a standard list of all fluid power cylinder mounting and accessory types.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 5598, Fluid power systems and components — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5598 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org
— ISO Online browsing platform: available at http://www.iso.org/obp
4 Identification code for rod end types
4.1 Reference points and letter codes
4.1.1 General
4.1.1.1 First point of reference
Axial dimensions are determined from a reference point that is the same for all cylinders, whatever their mounting method. This theoretical reference point (TRP) is the point of force transfer from the piston rod to the movable element. This point of reference (TRP) is named the first TRP.
4.1.1.2 Second point of reference
For double rod cylinders, the second TRP is defined by the letter code ZM directly attached to the first point of TRP (see Figure 8). This second TRP is used for accessories on the second rod side.
5 Letter code for identifying cylinder mounting, envelope and accessory dimensions
5.1 General
The code for identifying cylinder mounting, envelope and accessory dimensions is composed of one or two letters and, in some cases, the signs: ‘+’, ‘++’ or ‘+/’.
For the meaning of these letters and signs, see 5.2 to 5.5.
5.2 Letter U
Any group of two letters beginning with U identifies an ‘end view envelope’ dimension.
5.3 Letter Z
Any group of two letters beginning with Z identifies a longitudinal envelope dimension.
5.4 Letters W, X, Y, Z
Any group of two letters beginning with W, X, Y or Z identifies a dimension end from the reference point.