U-seals, Polypaks, U-cups

These seals are specifically designed to seal on their inside diameter and engineered to attain maximum life and reliability in dynamic rod sealing.

92A Durometer | Urethane Material | 3 in Nominal Inner Diameter | 1/4 in Cross Section | U-Seal

Style PU seals are molded from high quality urethane and designed specifically for piston applications.

90A Durometer | Urethane Material | 2 1/8 in Nominal Inner Diameter | 3/16 in Cross Section | U-Seal

Asymmetric rod seal designed with precision trimmed sealing lips to provide a dry sealing solution in light and medium-duty applications. The Hallite 605 is molded in Hythane® 181, Hallite’s high-performance polyurethane, for easy installation and excellent low temperature performance. The twin lip design helps solve difficult rod sealing problems by providing lower friction, increased stability, and high, dynamic lip force, while preventing air penetration from outside the cylinder. Designed to have interference in the seal housing groove and has a secondary lip. The secondary sealing lip located behind the primary sealing lip improves stability of the seal in the gland. The inner dynamic lip is shorter and more robust to improve sealing and compression set characteristics over conventional, symmetrical U-seals.

The seal can be considered for use in heavy-duty applications when used with a suitable full depth back-up ring. The sealing lips are precision trimmed at an angle to give optimal rod sealing performance.

94A Durometer | Urethane Material | 3 in Nominal Inner Diameter | 3/16 in Cross Section | U-Seal

Features

• General purpose rod seal
• Robust design
• Excellent wear resistance
• Increase seal stability
• Performs well over wide temperature range and is extremely effective in low temperatures
• Primary lip protection
• Easy to install

Our premium single-acting polyurethane rod seal incorporates an NBR energizer to seal at low pressures. The twin lip design provides stability and friction-reducing lube retention for dry rod sealing, and the included hard acetal backup ring resists extrusion. MRTUB is capable of pressures up to 10,000 psi in approved applications. E= European Urethane.

Top-of-the-range twin lip rod seal designed to provide a dry sealing solution in heavy-duty applications. The seal’s shell is molded in Hythane® 181, Hallite’s high-performance polyurethane, for easy installation and excellent low temperature performance.

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 seal also incorporates an acetyl anti-extrusion ring to withstand side loads and extreme pressure peaks even with the extrusion gaps.

94A Durometer | Urethane Material | 60 MM Nominal Inner Diameter | Rod U-Seal

Features

• Excellent low temperature performance
• Easy installation

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

Urethane Material | 35 MM Nominal Inner Diameter | Rod U-Seal

Molded from tough polyurethane material, these seals offer high resistance to wear and abrasion. Energized with a four-lobed ring, they have greatly increased low pressure performance.

Urethane Material | 36 MM Nominal Inner Diameter | U-Seal

Molded from tough polyurethane material, these seals offer high resistance to wear and abrasion. Energized with a four-lobed ring, they have greatly increased low pressure performance.

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

Molded from tough polyurethane material, these seals offer high resistance to wear and abrasion. Energized with a four-lobed ring, they have greatly increased low pressure performance.

Urethane Material | 50 MM Nominal Inner Diameter | U-Seal

US-90URE-1×1-5/16×0.234

US-90URE-1-1/2×2×3/8