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Standard

INTERNAL COMBUSTION ENGINES - PISTON RINGS COIL SPRING LOADED OIL CONTROL RINGS
1990-09-01
HISTORICAL
J2003_199009
This SAE Recommended Practice is equivalent to ISO Standard 6626. Differences, where they exist, are shown in the appendix with associated rationale. This document specified the essential dimensions of piston ring types DSF-C, DSF-CNP, SSF, GSF, DSF, DSF-NG, and SSF-L coil spring loaded oil control rings. For the cast iron part the recommended material is class 10 according to SAE J1590. For special applications material classes 20 to 50 may be used. Variation in face design and spring groove from these may be used, as recommended by individual manufacturers, in plain or chromed versions. The tangential forces of coil spring loaded oil control rings can be varied over a wide range. Explanations and recommendations are given in Section 6. The normal range for axial width of coil spring loaded oil control rings (3 to 8 mm inclusive) is divided into 0.5 or 1.0 mm steps.
Standard

Internal Combustion Engines—Piston Rings—Material Specifications
1998-04-17
HISTORICAL
J1590_199804
Differences, where they exist, are shown in Appendix A. This SAE Standard establishes a classification of materials intended for the manufacture of piston rings based on mechanical properties and the stresses that these materials are capable of withstanding. This document applies to the manufacture of piston rings up to and including 200 mm diameter for reciprocating internal combustion engines. It also applies to piston rings for compressors working under similar conditions.
Standard

INTERNAL COMBUSTION ENGINES - PISTON RINGS - MATERIAL SPECIFICATIONS
1989-10-01
HISTORICAL
J1590_198910
Differences, where they exist, are shown in Appendix A. This document establishes a classification of materials intended for the manufacture of piston rings based on mechanical properties and the stresses that these materials are capable of withstanding. This document applies to the manufacture of piston rings up to and including 200 mm diameter for reciprocating internal combustion engines. It also applies to piston rings for compressors working under similar conditions.
Standard

INTERNAL COMBUSTION ENGINES—PISTON RINGS—MATERIAL SPECIFICATIONS
1992-10-01
HISTORICAL
J1590_199210
Differences, where they exist, are shown in Appendix A. This SAE Standard establishes a classification of materials intended for the manufacture of piston rings based on mechanical properties and the stresses that these materials are capable of withstanding. This document applies to the manufacture of piston rings up to and including 200 mm diameter for reciprocating internal combustion engines. It also applies to piston rings for compressors working under similar conditions.
Standard

INTERNAL COMBUSTION ENGINES—PISTON RINGS—EXPANDER/SEGMENT OIL CONTROL RINGS
1992-09-01
HISTORICAL
J2004_199210
Differences, where they exist, are shown in Appendix A with associated rationale. This SAE Standard specifies the dimensional features of commonly used oil control rings having two steel segments (rails) separated and expanded by one steel expander/spacer. The segments vary in width from 0.4 to 0.6 mm. The assembly width ranges from 2.5 to 4.75 mm. The 4.75 mm width is equivalent to existing 3/16 in applications. Expander design will vary considerably with piston ring manufacturer. The total circumferential deflection and the piston groove depth should be considered when designing these oil rings to optimize the fit of the ring assembly into the piston groove. This document applies to oil control rings up through 125 mm for reciprocating internal combustion engines. It may also be used for piston rings of compressors working under similar conditions.
Standard

Internal Combustion Engines—Piston Rings—Expander/Segment Oil Control Rings
1998-04-01
HISTORICAL
J2004_199804
Differences, where they exist, are shown in Appendix A with associated rationale. This SAE Standard specifies the dimensional features of commonly used oil control rings having two steel segments (rails) separated and expanded by one steel expander/spacer. The segments vary in width from 0.4 to 0.6 mm. The assembly width ranges from 2.5 to 4.75 mm. The 4.75 mm width is equivalent to existing 3/16 in applications. Expander design will vary considerably with piston ring manufacturer. The total circumferential deflection and the piston groove depth should be considered when designing these oil rings to optimize the fit of the ring assembly into the piston groove. This document applies to oil control rings up through 125 mm for reciprocating internal combustion engines. It may also be used for piston rings of compressors working under similar conditions.
Standard

INTERNAL COMBUSTION ENGINES - PISTON RINGS EXPANDER/SEGMENT OIL CONTROL RINGS
1990-09-01
HISTORICAL
J2004_199009
This SAE Recommended Practice is equivalent to ISO Standard 6627 TR. Differences, where they exist, are shown in the appendix with associated rationale. This document specifies the dimensional features of commonly used oil control rings having two steel segments (rails) separated and expanded by one steel expander/spacer. The segments vary in width from 0.4 to 0.6 mm. The assembly width ranges from 2.5 to 4.75 mm. The 4.75 mm width is equivalent to existing 3/16 in applications. Expander design will vary considerably with piston ring manufacturer. The total circumferential deflection and the piston groove depth should be considered when designing these oil rings to optimize the fit of the ring assembly into the piston groove. This document applies to oil control rings up through 125 mm for reciprocating internal combustion engines. It may also be used for piston rings of compressors working under similar conditions.
Standard

Internal Combustion Engines—Piston Rings—Half Keystone Rings
1998-04-01
HISTORICAL
J2001_199804
Differences, where they exist, are shown in Appendix A. This SAE Standard specifies the essential dimensional features of HK- and HKB-half keystone rings with narrow ring width types. Dimensional and allow for the use of cast iron (Table 6) or steel (Table 7). Since the modulus of elasticity of steel rings is higher than that of cast iron rings, the fluctuation in the surface pressure will become greater if the free gap is set as the reference for forces. Therefore, forces are set using the surface pressure as the reference in order to minimize the effect of the fluctuation. The requirements of this document apply to half keystone rings of reciprocating internal combustion engines up to and including 70 mm diameter for cast iron rings and up to and including 100 mm diameter for steel rings.
Standard

INTERNAL COMBUSTION ENGINES - PISTON RINGS - HALF KEYSTONE RINGS
1990-09-01
HISTORICAL
J2001_199009
Differences, where they exist, are shown in Appendix A. This SAE Recommended Practice specifies the essential dimensional features of HK- and HKB- half keystone rings with narrow ring width types. Dimensional Tables 6 and 7 allow for the use of cast iron (Table 6) or steel (Table 7). Since the modulus of elasticity of steel rings is higher than that of cast iron rings, the fluctuation in the surface pressure will become greater if the free gap is set as the reference for forces. Therefore, forces are set using the surface pressure as the reference in order to minimize the effect of the fluctuation. The requirements of this document apply to half keystone rings of reciprocating internal combustion engines up to and including 70 mm diameter for cast iron rings and up to and including 100 mm diameter for steel rings.
Standard

INTERNAL COMBUSTION ENGINES—PISTON RINGS—KEYSTONE RINGS
1992-10-20
HISTORICAL
J2000_199210
Differences, where they exist, are shown in Appendix A. This SAE Standard specifies the essential dimensional features of T, TB, TM, K, KB, and KM keystone piston ring types. The requirements of this document apply to compression rings for reciprocating internal combustion engines up to and including 200 mm diameter.
Standard

Internal Combustion Engines—Piston Rings—Keystone Rings
1998-04-01
HISTORICAL
J2000_199804
Differences, where they exist, are shown in Appendix A. This SAE Standard specifies the essential dimensional features of T, TB, TM, K, KB, and KM keystone piston ring types. The requirements of this document apply to compression rings for reciprocating internal combustion engines up to and including 200 mm diameter.
Standard

INTERNAL COMBUSTION ENGINES - PISTON RINGS - KEYSTONE RINGS
1989-10-01
HISTORICAL
J2000_198910
Differences, where they exist, are shown in Appendix A. This document specifies the essential dimensional features of T, TB, TM, K, KB, and KM keystone piston ring types. The requirements of this document apply to compression rings for reciprocating internal combustion engines up to and including 200 mm diameter.
Standard

INTERNAL COMBUSTION ENGINES - PISTON RINGS - SCRAPER RINGS
1989-10-01
HISTORICAL
J1999_198910
Differences, where they exist, are shown in Appendix A. This document specifies the essential dimensional features of N, NM, E, and EM scraper piston ring types. Dimensional Tables 7 and 8 offer the choice of two radial wall thicknesses: a radial wall thickness "regular" (Table 7); b radial wall thickness "D/22" (Table 8). The requirements of this document apply to scraper rings for reciprocating internal combustion piston engines up to and including 200 mm diameter. They may also be used for piston rings of compressors working under similar conditions.
Standard

Internal Combustion Engines—Piston Rings—Scraper Rings
1998-04-17
HISTORICAL
J1999_199804
Differences, where they exist, are shown in Appendix A. This SAE Standard specifies the essential dimensional features of N, NM, E, and EM scraper piston ring types. Dimensional Tables 7 and 8 offer the choice of two radial wall thicknesses: a Radial wall thickness "regular" (Table 7) b Radial wall thickness "D/22" (Table 8) The requirements of this document apply to scraper rings for reciprocating internal combustion piston engines up to and including 200 mm diameter. They may also be used for piston rings of compressors working under similar conditions.
Standard

Internal Combustion Engines—Piston Rings—Rectangular Rings
1998-04-01
HISTORICAL
J1997_199804
Differences, where they exist, are shown in Appendix A. This SAE Standard specifies the essential dimensional features of R, B, and M rectangular piston ring types. Dimensional Tables 8 and 9 offer the choice of two radial wall thicknesses: a Radial wall thickness "regular" (Table 8) b Radial wall thickness "D/22" (Table 9) The requirements of this document apply to rectangular rings for reciprocating internal combustion piston engines up to and including 200 mm diameter. They may also be used for piston rings of compressors working under similar conditions.
Standard

INTERNAL COMBUSTION ENGINES - PISTON RINGS - RECTANGULAR RINGS
1989-10-01
HISTORICAL
J1997_198910
Differences, where they exist, are shown in Appendix A. This document specifies the essential dimensional features of R, B, and M rectangular piston ring types. Dimensional Tables 8 and 9 offer the choice of two radial wall thicknesses: a radial wall thickness "regular" (Table 8) b radial wall thickness "D/22" (Table 9) The requirements of this document apply to rectangular rings for reciprocating internal combustion piston engines up to and including 200 mm diameter. They may also be used for piston rings of compressors working under similar conditions.
Standard

Internal Combustion Engines—Piston Rings— Rectangular Rings With Narrow Ring Width
1998-04-17
HISTORICAL
J1998_199804
Differences, where they exist, are shown in Appendix A. This SAE Standard specifies the essential dimensional features of R, B, and M rectangular piston ring types with narrow ring width. Dimensional Tables 8 and 9 allow for the use of cast iron (Table 8) or steel (Table 9). Since the modulus of elasticity of steel rings is higher than that of cast iron rings, the fluctuation in the surface pressure will become greater if the free gap is set as the reference for force. Therefore, forces are set using the surface pressure as the reference, in order to minimize the effect of the fluctuation. The requirements of this document apply to rectangular rings for reciprocating internal combustion engines up to and including 90 mm diameter for cast iron rings and up to and including 100 mm diameter for steel. They may also be used for piston rings of compressors working under similar conditions.
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