BS ISO 6624-3:2017 pdf free

BS ISO 6624-3:2017 pdf free.Internal combustion engines – Piston rings
This document specifies the essential dimensional features of keystone rings made of steel, types T,TB, TBA, TM, K, KB, KBA and KM, having diameters from 70 mm up to and including 160 mm, used in reciprocating internal combustion piston engines.
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 6621-4, Internal combustion engines一Piston rings一Part 4: General specifications
No terms and definitions are listed in this document.
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The keystone ring types are specified in Tables 1 to 3 and Figures 1 to 8. Their common features and the dimensions of those features are specified in Tables 4 to 9 and Figures 9 to 15. Tables 11 and 12 give the force factors for the different types of rings, while Table 13 and Table 14 give the dimensions and forces of keystone rings 6° and 15° respectively.
EXAMPLE Designation of a piston ring complying with the requirements of ISO 6624-3, being a steel, 6° keystone ring with barrel faced peripheral surface (TB), of nominal diameter d1 = 90 mm (90) and nominal ring widthh1 = 2,5 mm (2,5), made of martensitic steel (11 % Cr min.J), subclass 65 (MC 65), nitrided on the peripheral surface and side faces (NT) to a depth of 0,070 mm min. on the peripheral surface (070), and with an associated side face depth of a minimum of 0,020 mm. Parameters in parenthesis are used in the ISO ring designation
EXAMPLE Designation of a piston ring complying with the requirements of ISO 6624-3, being a steel, 6° keystone ring with 10′ taper faced peripheral surface (TM1), of nominal diameter d1 = 90 mm (90) and nominal ring widthh1 = 2,5 mm (2,5), made of martensitic steel (11 % CR min.), subclass 65 (MC 65), and having a fully faced chromium plated peripheral surface with a minimum thickness of 0,1 mm (CR2). Parameters in parenthesis are used in the ISO ring designation.BS ISO 6624-3 pdf download.