Buffer Seals

RB-STL/PTF-1.500×1.656×0.750

Style DYR-BHT buffer seals are molded in Freudenberg® AU 30000 urethane. This U-cup style buffer ring offers an asymmetric sealing lip profile, chamfered sealing edges, and pressure relieving capabilities to prevent inner pressure entrapment when employed in a tandem sealing system. This rod buffer seal is designed to absorb impact pressure fluctuations under high-load conditions thus increasing the life of the primary seal. This high tear-resistant urethane demonstrates stability throughout a wide range of temperatures. In addition, this material is well suited to mineral and biodegradable hydraulic fluids as well as being resistant to hydrolysis.

94A Durometer | Urethane Material | 2 in Nominal Inner Diameter | Buffer Seal

Molded in PTFE with a rubber energizer, this seal absorbs the shock of pressure spikes to protect the rod seal.

70A Durometer | Filled PTFE Buffer Material | 63 MM Nominal Inner Diameter | Buffer Seal

Molded in PTFE with a rubber energizer and nylon anti-extrusion ring, this seal absorbs the shock of pressure spikes to protect the rod seal.

70A Durometer | PTFE Buffer Material | 80 MM Nominal Inner Diameter | Buffer Seal

Molded in polyurethane, this buffer seal is a simple flat, washer-like profile.

Urethane Material | 63 MM Nominal Inner Diameter | Buffer Seal

Molded in urethane and employing a back-up, this seal absorbs the shock of pressure spikes to protect the rod seal. The unique design relieves back pressure between the buffer and the rod seal. NOTE: ME = Merkel Equivalent.

Urethane Material | 110 MM Nominal Inner Diameter | Buffer Seal

Molded in urethane and employing a back-up, this seal absorbs the shock of pressure spikes to protect the rod seal. The unique design relieves back pressure between the buffer and the rod seal. NOTE: ME = Merkel Equivalent.

Urethane Material | 115 MM Nominal Inner Diameter | Buffer Seal

Molded in urethane and employing a back-up, this seal absorbs the shock of pressure spikes to protect the rod seal. The unique design relieves back pressure between the buffer and the rod seal. NOTE: ME = Merkel Equivalent.

Urethane Material | 45 MM Nominal Inner Diameter | Buffer Seal

Style MYR-KYB buffer seals are made to a Kayaba-equivalent design which is commonly used within Caterpillar, Deere/Hitachi, and Volvo cylinders.

Urethane Material | 95 MM Nominal Inner Diameter | Buffer Seal

The RBS style rod buffer seals are a rectangular urethane buffer ring designed to absorb pressure fluctuations to protect the primary rod seal. Some sizes include a radial and axial slot, which faces the pressure, to relieve back pressure between the primary and buffer seal. This simple design is commonly found on older construction equipment.

92A Durometer | Urethane Material | 1 1/4 in Nominal Inner Diameter | Buffer Seal