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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 | 7 in Nominal Inner Diameter | 1/8 in Cross Section | O-Ring
Features
- Pressure range varies according to diametral clearance
- Temperature range of -40 °F to -240 °F
Hercules® Sealing Products is pleased to introduce our new line of PowerbandTM tight tolerance premium wearrings. Manufactured from a highly engineered blend of premium nylon, glass fiber, and PTFE, PowerbandsTM offer a high strength wear-ring for all cylinder applications, including those with minimal lubrication. And, with a Coefficient of Friction nearly 50% lower than our standard product, your cylinders will run smoother and more efficiently than ever. All PowerbandsTM are fully machined with cross-section tolerances of only ±0.001”, chamfered corners, and scarf or angle-cut end gaps. Compared to standard tolerances of ±0.0025”, this tightened tolerance improves the alignment and concentric operation of cylinder rods and pistons. The fully machined chamfered corners will better accommodate cylinder housing grooves, further improving piston and rod alignment. Lastly, the scarf-cut end gap reduces the loss of bearing support that may occur during cylinder side-loading. When combined, these features reduce the tolerance stack-up within the components of the cylinder. As a result, your cylinders will operate more consistently and be capable of operating at higher pressures and higher side loads than with standard wear-ring products. Furthermore, with this improved cylinder operation, your seals will last longer and the life of your cylinder will be extended. PowerbandsTM are currently available in our most popular wear-ring dimensions.
7 in Nominal Inner Diameter | Powerband
Features
- PowerbandsTM offer a high strength wear-ring for all cylinder applications
- Fully machined with cross-section tolerances of only ±0.001
- Chamfered corners
- Scarf or angle-cut end gaps
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 | 7 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
Style ST-XL wipers are molded from premium urethane and are direct replacements for Style “ST” or “D” wipers. The outside diameter of the ring has a crush lip providing extra interference in the groove. A bead on the shoulder stops contaminates from entering through the groove. The inside diameter is ribbed to prevent pressure traps between the wiper and rod seal.
94A Durometer | Urethane Material | 7 in Nominal Inner Diameter
Features
- Crush lip to provide extra interference
- Bead on the shoulder to keep contaminants out
- Ribbed ID to prevent pressure traps
Hytrel backup ring with a flat cross-section.
Molded of 55D Durometer Hytrel, these back-up rings provide excellent extrusion resistance and tolerance to fluids such as phosphate esters, hydraulic oil and water. Stretched for installation, they return quickly to their original size for easy installation.
55D Durometer | Hytrel Material | 7 in Nominal Inner Diameter | 0.11 in Cross Section | Backup Ring
Features
- Improved extrusion resistance compared to standard FKM or NBR backups
- Can be stretched over larger diameters and will return quickly to their original size
- High strength and abrasion resistance
- Wide temperature range
- Chemical resistance
- Low friction
- Easy installation
Hytrel backup ring with a flat cross-section.
Molded of 55D Durometer Hytrel, these back-up rings provide excellent extrusion resistance and tolerance to fluids such as phosphate esters, hydraulic oil and water. Stretched for installation, they return quickly to their original size for easy installation.
55D Durometer | Hytrel Material | 7 in Nominal Inner Diameter | 1/4 in Cross Section | Backup Ring
Features
- Improved extrusion resistance compared to standard FKM or NBR backups
- Can be stretched over larger diameters and will return quickly to their original size
- High strength and abrasion resistance
- Wide temperature range
- Chemical resistance
- Low friction
- Easy installation
AN wipers are ideal for light duty and pneumatic applications. Its main purpose is to prevent dirt and contaminants from entering the hydraulic or pneumatic systems. Suffix “SH” designates slotted heel design, “V” designates fluorocarbon material, and “B” designates carboxilated nitrile material.
90A Durometer | Urethane Material | 7 in Nominal Inner Diameter
Features
- Flexible, snap-in design for easy installation into closed housings
- Low compression set
Suffix “V” designates fluorocarbon material,“N” designates nitrile material, and “HT” designates high temperature urethane.
90A Durometer | Urethane Material | 7 in Nominal Inner Diameter
Features
- Urethane Wiper Ring
- Min. Temperature Range of ‘-40 °F; N: -40°; V: -20 °F; HT: -40 °F
- Max. Temperature Range of 200 °F; N: 225 °F; V: 350 °F; HT: 225 °F
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.
90 Durometer | Buna-N Rubber Material | 7 in Nominal Inner Diameter | 1/8 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 | 7 in Nominal Inner Diameter | 3/16 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
