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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
Rod diameter d (mm)
Groove Diameter d (mm)
Groove Diameter D (mm)
Seal width h (mm)
O-ring dimension
Inside diameter
Cross section
Details
Seal type
Manufacturers
Manufacturers
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Photo Code Name Producer Stock
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 request
Back up ring AM 70x80x1,7 48004923 Back up ring AM 70x80x1,7 Aston seals 47
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 10
Back up ring K81 70x80x1,7 K81-070/1 Back up ring K81 70x80x1,7 Kastas 34
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 20
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 14
Static seal K85 70x64,6x6,2 PU K85-070 PU Static seal K85 70x64,6x6,2 PU Kastas 24
Static seal K85 70x64,6x6,2 PU9201 K85-070 PU S Static seal K85 70x64,6x6,2 PU9201 Kastas 21
Static seal OP 70x65,4x5,4 PU 48006837 Static seal OP 70x65,4x5,4 PU Aston seals 5
Static seal OP 70x65,5x3,5 PU 48006838 Static seal OP 70x65,5x3,5 PU Aston seals 30
Static seal SSA 70x63,8x6,0 PU SSA 0700 0638 060 C0 Static seal SSA 70x63,8x6,0 PU Artic seals 69
Static seal SSA 70x64,4x6 [2ESSA629] SSA 0700 0644 060 C0 Static seal SSA 70x64,4x6 [2ESSA629] Artic seals 40
Static seal SSA 70x64,5x5,3 C0 [2ESSA839] SSA 0700 0645 053 C0 Static seal SSA 70x64,5x5,3 C0 [2ESSA839] Artic seals 40
Static seal SSA 70x64,6x6,2 PU SSA 0700 0646 062 C0 Static seal SSA 70x64,6x6,2 PU Artic seals 93
Static seal SSA 70x65x5,0 PU SSA 0700 0650 050 C0 Static seal SSA 70x65x5,0 PU Artic seals 1
Back up ring AP 71,44x3,53 48005841 Back up ring AP 71,44x3,53 Aston seals 58
Back up ring MAE 71,4x80x2,0 L1 MAE 0714 0800 020 L1 Back up ring MAE 71,4x80x2,0 L1 Artic seals 85
Back up ring RAE 71,12x2,62 L1 [2ERAE297] RAE 07112 00262 L1 Back up ring RAE 71,12x2,62 L1 [2ERAE297] Artic seals 6 weeks
Back up ring RAE 71,44x3,53 L1 [2ERAE509] RAE 07144 00353 L1 Back up ring RAE 71,44x3,53 L1 [2ERAE509] Artic seals 47
Static seal SSA 71,5x66x4,6 [2ESSA262] SSA 0715 0660 046 C0 Static seal SSA 71,5x66x4,6 [2ESSA262] Artic seals 6 weeks
Back up ring K81 72x80x1,9 K81-072 Back up ring K81 72x80x1,9 Kastas 14
Back up ring MAE 72,5x77,5x1,3 L1 MAE 0725 0775 013 L1 Back up ring MAE 72,5x77,5x1,3 L1 Artic seals 6 weeks
Back up ring MAE 72,5x82,5x1,7 L1 MAE 0725 0825 017 L1 Back up ring MAE 72,5x82,5x1,7 L1 Artic seals 6 weeks
Back up ring RAE 72,39x5,34 L1 [2ERAE717] RAE 07239 00534 L1 Back up ring RAE 72,39x5,34 L1 [2ERAE717] Artic seals 30
Back up ring RAE 72,62x3,53 L1 [2ERAE513] RAE 07262 00353 L1 Back up ring RAE 72,62x3,53 L1 [2ERAE513] Artic seals 67
Back up ring RAE 72,75x1,78 L1 [2ERAE299] RAE 07275 00178 L1 Back up ring RAE 72,75x1,78 L1 [2ERAE299] Artic seals 6 weeks
Back up ring RAE 72,96x2,62 L1 [2ERAE301] RAE 07296 00262 L1 Back up ring RAE 72,96x2,62 L1 [2ERAE301] Artic seals 6 weeks
Static seal GDS 72,90x79,25x4,0 [79,03x3,53] PU GDS-845 Static seal GDS 72,90x79,25x4,0 [79,03x3,53] PU OEM 35
Static seal SSA 72,6x68x3,8 [2ESSA266] SSA 0726 0680 038 C0 Static seal SSA 72,6x68x3,8 [2ESSA266] Artic seals 6 weeks
Static seal SSA 72x66,4x5,0 PU SSA 0720 0664 050 C0 Static seal SSA 72x66,4x5,0 PU Artic seals 107
Back up ring RAE 73,03x3,53 L1 [2ERAE517] RAE 07303 00353 L1 Back up ring RAE 73,03x3,53 L1 [2ERAE517] Artic seals 65
Back up ring RAE 74,61x3,53 L1 [2ERAE521] RAE 07461 00353 L1 Back up ring RAE 74,61x3,53 L1 [2ERAE521] Artic seals 30
Back up ring RAE 74,63x5,34 L1 [2ERAE721] RAE 07463 00534 L1 Back up ring RAE 74,63x5,34 L1 [2ERAE721] Artic seals 58
Static seal SSA 74,6x70x3,8 [2ESSA268] SSA 0746 0700 038 C0 Static seal SSA 74,6x70x3,8 [2ESSA268] Artic seals 65
Back up ring AM 75x80x1,3 48005680 Back up ring AM 75x80x1,3 Aston seals 14
Back up ring AM 75x85x1,7 48005681 Back up ring AM 75x85x1,7 Aston seals 50
Back up ring AP 75,79x3,53 48005845 Back up ring AP 75,79x3,53 Aston seals 70
Back up ring AP 75,87x2,62 48005792 Back up ring AP 75,87x2,62 Aston seals 40
Back up ring K81 75x80x1,3 K81-075 Back up ring K81 75x80x1,3 Kastas 2
Back up ring K81 75x85x1,9 K81-075/3 Back up ring K81 75x85x1,9 Kastas 16
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