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O-rings as elastic loops that seal static and dynamic applications. They are used to seal the space between cylinders, pistons, pipes and tubes and can be made from various materials.

70 Durometer | Buna-N Rubber Material | 1 1/4 in Nominal Inner Diameter | 3/32 in Cross Section | O-Ring

Features

• Pressure range varies according to diametral clearance
• Temperature range of -40 °F to -240 °F

Parback® backup ring with a curved cross-section.

Parbaks are contoured on one face to minimize distortion of the o-ring when under pressure. Parbaks should be installed with the contoured face against the o-ring, but reversal does no harm.

90A Durometer | Buna-N Rubber Material | 3 3/4 in Nominal Inner Diameter | 1/8 in Cross Section | Backup Ring

Features

• Excellent extrusion resistance
• Easily stretched for installation
• Lubrication is enhanced by rubber which absorbs system fluid and does not plate out on rubbing surfaces

Featuring high pressure and high shock load capability, this seal utilizes the same twin lip design found in Hercules®, Sealing Products’ RTU style. With the main body of the seal molded from high performance polyurethane, this seal, incorporates a dynamically designed nitrile energizer and a tough polyacetal anti-extrusion ring. RTUB is capable of, pressures up to 10,000 psi in approved applications. Please consult Hercules Engineering for pressures above 6,000, psi.

The secondary sealing lip located behind the primary sealing lip improves stability of the seal in the gland. The unique profile of the NBR energizer ensures the primary sealing lips maintain contact under low or no pressure situations while ensuring proper sealing at higher pressures. The Hallite 621 also incorporates an acetyl anti-extrusion ring to withstand side loads and extreme pressure peaks even with the extrusion gaps.

94A Durometer | Urethane Material | 2 1/2 in Nominal Inner Diameter | 1/4 in Cross Section | U-Seal

Molded from filled PTFE and machined to close tolerances, these seals feature low friction and excellent wear characteristics. Nitrile rings are used for energizers.

70A Durometer | PTFE Material | 39 MM Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities

CPO-2750 has a 2.75 in diameter with Standard Chrome. The base material is 1045 Carbon Steel with a yield strength of 75,000 psi.

ASTM A108 is the most commonly used and economical grade of shafting for hydraulic cylinder components, blower shafts, and mandrels.

• Extremely smooth surface finish
• Excellent wear and corrosion resistance
• Good strength and impact properties
• Good machinability
• Reasonable weldability
• Fair response to normal heat treating and induction hardening practices

Full mill lengths will be cut to lengths between 12 ft and 19 ft long. Packages longer than 44 inches may have additional freight charges.

DUCT-3500 has a diameter of 3.5 in. The material is 65-45-12 Ductile Iron.

65-45-12 Ductile Iron is used to machine pistons, glands, caps, manifolds, rams, and valve bodies.

Ductile has higher machining speeds than steel and there is usually no need for deburring machined parts. The graphite flakes in the material act as a self-lubricant. Ductile can be flame or induction hardened as well as deep hardened.

Ductile bars are produced with sufficient stock on the outside diameter to ensure clean-up at the nominal dimension.

• Excellent machinability
• Optimal impact strengths
• Optimal fatigue properties
• Optimal electrical conductivity
• High magnetic permeability

Full mill lengths will be cut to lengths between 12 ft and 19 ft long. Packages longer than 44 inches may have additional freight charges.

Molded from 93 Shore A polyurethane with a 70 Shore A energizer, this seal utilizes the same groove dimensions as a standard o-ring or T-seal. One or two Style 575 back-up rings may be used for wider grooves. Extrusion resistant by design, this seal is also resistant to rolling and twisting. Installation is an easy two step snap-in procedure with no need to re-size before insertion into the bore. Piston diameter “I” dimensions are given for pistons without wear rings.

93A; 70A Durometer | Urethane Material | 1 5/8 in Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities

Parback® backup ring with a curved cross-section.

Parbaks are contoured on one face to minimize distortion of the o-ring when under pressure. Parbaks should be installed with the contoured face against the o-ring, but reversal does no harm.

90A Durometer | Buna-N Rubber Material | 5 1/2 in Nominal Inner Diameter | 1/4 in Cross Section | Backup Ring

Features

• Excellent extrusion resistance
• Easily stretched for installation
• Lubrication is enhanced by rubber which absorbs system fluid and does not plate out on rubbing surfaces

MCPO-63 has a 63 mm diameter with Standard Chrome. The base material is 1045 Carbon Steel with a yield strength of 75,000 psi.

ASTM A108 is the most commonly used and economical grade of shafting for hydraulic cylinder components, blower shafts, and mandrels.

• Extremely smooth surface finish
• Excellent wear and corrosion resistance
• Good strength and impact properties
• Good machinability
• Reasonable weldability
• Fair response to normal heat treating and induction hardening practices

Full mill lengths will be cut to lengths between 12 ft and 19 ft long. Packages longer than 44 inches may have additional freight charges.

O-rings as elastic loops that seal static and dynamic applications. They are used to seal the space between cylinders, pistons, pipes and tubes and can be made from various materials.

70 Durometer | Buna-N Rubber Material | 1 5/8 in Nominal Inner Diameter | 3/16 in Cross Section | O-Ring

Features

• Pressure range varies according to diametral clearance
• Temperature range of -40 °F to -240 °F