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Static seals

Static seals

Static seals are used to prevent fluid leakage between stationary components in hydraulic and pneumatic systems. Unlike dynamic seals, static seals do not move relative to each other but must resist high pressure and maintain sealing integrity over time.

Backup rings support primary sealing elements like O-rings by preventing their extrusion under pressure. These rings are typically made from hard polymers such as PTFE or nylon, increasing the durability of the sealing system.

Static sealing rings provide tight sealing between fixed parts such as flange connections or valve seats. They can be made from elastomers, plastics, or composites depending on the application requirements.

Key features include high resistance to extrusion and deformation, compatibility with various fluids and temperatures, and precise dimensions to ensure reliable sealing.

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Hydraulic seals dimension
Groove Diameter d (mm)
Groove Diameter D (mm)
Seal width h (mm)
Details
Seal type
Manufacturers
Manufacturers
38
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25
Photo Code Name Producer Stock
Back up ring AM 65x70x1,3 48005671 Back up ring AM 65x70x1,3 Aston seals 722
Back up ring AM 65x75x1,7 48005672 Back up ring AM 65x75x1,7 Aston seals 68
Back up ring AP 65,09x3,53 48005835 Back up ring AP 65,09x3,53 Aston seals 65
Back up ring K81 65x70x1,3 K81-065 Back up ring K81 65x70x1,3 Kastas 29
Back up ring K81 65x75x1,7 K81-065/1 Back up ring K81 65x75x1,7 Kastas 14
Back up ring MAE 65x70x1,3 L1 MAE 0650 0700 013 L1 Back up ring MAE 65x70x1,3 L1 Artic seals request
Back up ring MAE 65x75x1,7 L1 MAE 0650 0750 017 L1 Back up ring MAE 65x75x1,7 L1 Artic seals request
Back up ring RAE 65,09x3,53 L1 [2ERAE485] RAE 06509 00353 L1 Back up ring RAE 65,09x3,53 L1 [2ERAE485] Artic seals 28
Static seal K84 65x57,2x5,8 PU K84-065 PU Static seal K84 65x57,2x5,8 PU Kastas 18
Static seal K85 65x59,4x5 PU9201 K85-065 PU S Static seal K85 65x59,4x5 PU9201 Kastas 10
Static seal SSA 65x59,4x5 [2ESSA241] SSA 0650 0594 050 C0 Static seal SSA 65x59,4x5 [2ESSA241] Artic seals 50
Static seal SSA 65x59,6x6,2 PU SSA 0650 0596 062 C0 Static seal SSA 65x59,6x6,2 PU Artic seals 65
Static seal SSA 65x60,4x4 [2ESSA646] SSA 0650 0604 040 C0 Static seal SSA 65x60,4x4 [2ESSA646] Artic seals 81
Static seal SSA 65x60x5 [2ESSA249] SSA 0650 0600 050 C0 Static seal SSA 65x60x5 [2ESSA249] Artic seals 15
Back up ring AP 66,04x5,34 48005880 Back up ring AP 66,04x5,34 Aston seals 80
Back up ring K81 66x70,5x1,3 K81-066 Back up ring K81 66x70,5x1,3 Kastas 12
Back up ring RAE 66,04x5,34 L1 [2ERAE709] RAE 06604 00534 L1 Back up ring RAE 66,04x5,34 L1 [2ERAE709] Artic seals 63
Back up ring RAE 66,27x3,53 L1 [2ERAE489] RAE 06627 00353 L1 Back up ring RAE 66,27x3,53 L1 [2ERAE489] Artic seals 30
Back up ring RAE 66,35x2,62 L1 [2ERAE285] RAE 06635 00262 L1 Back up ring RAE 66,35x2,62 L1 [2ERAE285] Artic seals 6 weeks
Back up ring RAE 66,40x1,78 L1 [2ERAE286] RAE 06640 00178 L1 Back up ring RAE 66,40x1,78 L1 [2ERAE286] Artic seals 6 weeks
Back up ring RAE 66,68x3,53 L1 [2ERAE493] RAE 06668 00353 L1 Back up ring RAE 66,68x3,53 L1 [2ERAE493] Artic seals 128
Static seal SSA 66x60,4x5,1 [2ESSA253] SSA 0660 0604 051 C0 Static seal SSA 66x60,4x5,1 [2ESSA253] Artic seals 83
Back up ring AP 67,95x2,62 48005788 Back up ring AP 67,95x2,62 Aston seals 80
Back up ring RAE 67,95x2,62 L1 [2ERAE289] RAE 06795 00262 L1 Back up ring RAE 67,95x2,62 L1 [2ERAE289] Artic seals 6 weeks
Back up ring AP 68,26x3,53 48005838 Back up ring AP 68,26x3,53 Aston seals 53
Back up ring K81 68,4x74,8x1,55 K81-068 Back up ring K81 68,4x74,8x1,55 Kastas 19
Back up ring RAE 68,26x3,53 L1 [2ERAE497] RAE 06826 00353 L1 Back up ring RAE 68,26x3,53 L1 [2ERAE497] Artic seals 53
Flange seal FSA 68,2x76,6x2,85 C0 2,5" [2EFSA295] FSA 2500 C0 Flange seal FSA 68,2x76,6x2,85 C0 2,5" [2EFSA295] Artic seals 40
Static seal K85 68x63,5x4,5 PU K85-068 PU Static seal K85 68x63,5x4,5 PU Kastas 22
Back up ring AP 69,22x5,34 48005881 Back up ring AP 69,22x5,34 Aston seals 56
Back up ring AP 69,85x3,53 48005840 Back up ring AP 69,85x3,53 Aston seals 55
Back up ring K81 69,80x75x1,3 K81-069 Back up ring K81 69,80x75x1,3 Kastas 19
Back up ring MAE 69x74x1,3 L1 MAE 0690 0740 013 L1 Back up ring MAE 69x74x1,3 L1 Artic seals 114
Back up ring RAE 69,22x5,34 L1 [2ERAE713] RAE 06922 00534 L1 Back up ring RAE 69,22x5,34 L1 [2ERAE713] Artic seals 19
Back up ring RAE 69,44x3,53 L1 [2ERAE501] RAE 06944 00353 L1 Back up ring RAE 69,44x3,53 L1 [2ERAE501] Artic seals 77
Back up ring RAE 69,52x2,62 L1 [2ERAE293] RAE 06952 00262 L1 Back up ring RAE 69,52x2,62 L1 [2ERAE293] Artic seals 6 weeks
Back up ring RAE 69,57x1,78 L1 [2ERAE287] RAE 06957 00178 L1 Back up ring RAE 69,57x1,78 L1 [2ERAE287] Artic seals 6 weeks
Back up ring RAE 69,85x3,53 L1 [2ERAE505] RAE 06985 00353 L1 Back up ring RAE 69,85x3,53 L1 [2ERAE505] Artic seals 36
Static seal SSA 69,6x65x3,9 [2ESSA254] SSA 0696 0650 039 C0 Static seal SSA 69,6x65x3,9 [2ESSA254] Artic seals 58
Back up ring 70x83x3 BRT 48005011 Back up ring 70x83x3 BRT OEM 35
Back up ring 70x85x3 BRT 48005012 Back up ring 70x85x3 BRT OEM 34
Back up ring AM 70x75x1,3 48004922 Back up ring AM 70x75x1,3 Aston seals 200
Back up ring AM 70x80x1,7 48004923 Back up ring AM 70x80x1,7 Aston seals 17
Back up ring BUS02 70,4x75,8x1,4u XPU CNC 48002614 Back up ring BUS02 70,4x75,8x1,4u XPU CNC OEM request
Back up ring K81 70x75x1,3 K81-070 Back up ring K81 70x75x1,3 Kastas 6
Back up ring K81 70x80x1,7 K81-070/1 Back up ring K81 70x80x1,7 Kastas 58
Back up ring MAE 70x75x1,3 L1 [2EMAE050] MAE 0700 0750 013 L1 Back up ring MAE 70x75x1,3 L1 [2EMAE050] Artic seals request
Static seal K83 70x75,6x6,2 K83-070 PU Static seal K83 70x75,6x6,2 Kastas 29
Static seal K83 70x77x5,5 K83-070/1 PU Static seal K83 70x77x5,5 Kastas 20
Static seal K84 70x64,4x6,2 PU K84-070 PU Static seal K84 70x64,4x6,2 PU Kastas 12
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