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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.

70A Durometer | Nitrile Material | 48.7 MM Nominal Inner Diameter | 3.5 MM Cross Section | O-Ring

Features

• Chemical resistance
• Temperature range of -40 °F to 220 °F

Molded in a tough urethane, this rod u-seal fits tightly in the groove while providing increased radial force on the rod.

Urethane Material | 40 MM Nominal Inner Diameter | Rod U-Seal

This light duty wiper is molded in polyurethane and features a double-stepped shoulder to fit tightly in the gland throat.

Urethane Material | 65 MM Inner Diameter | Wiper

Features

• Double-stepped shoulder

Utilizing tough polyurethane, these seals possess excellent wear and abrasion resistance. Symmetrical in design, they can be used in rod or piston applications. E= European Urethane.

Urethane Material | 55 MM Nominal Inner Diameter | U-Seal

Fabricated from fine woven fabric and phenolic resins, this wear ring is strong yet light weight with an excellent wear rate.

Phenolic Material | 45 MM Nominal Inner Diameter | Wear Ring

Features

• Protection Against Wear
• Reduced Friction
• Extended Cylinder Life
• Operational Efficiency

Fabricated from fine woven fabric and phenolic resins, this wear ring is strong yet light weight with an excellent wear rate.

Phenolic Material | 85 MM Nominal Inner Diameter | Wear Ring

Features

• Protection Against Wear
• Reduced Friction
• Extended Cylinder Life
• Operational Efficiency

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.

2 3/4 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

SB38ES-2RS has a 1.5 in ID.

The bushing is Sealed and made of forged steel. The ball will swivel like a fish eye with 3-5 degrees of movement.

Style ST wiper rings are precision molded from 90A durometer urethane. Flexible enough to easily snap into a groove yet tough enough to handle difficult rod wiping applications. “V” tagged wipers are constructed of fluorocarbon.

90A Durometer | Fluorocarbon Material | 1 1/2 in Nominal Inner Diameter

Features

• Flexible enough to snap into a groove
• Wipers are constructed of fluorocarbon

Designed to fit a 2.5 in inch cylinder bore and 1.25 in inch rod.

The gland is not threaded. It is held in place by a cylinder head cap and corresponding seal kit.