Buffer Seals
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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 | 60 MM Nominal Inner Diameter | Buffer Seal
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.
Urethane Material | 5 1/2 in Nominal Inner Diameter | Buffer Seal
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.
Urethane Material | 1 3/8 in Nominal Inner Diameter | Buffer Seal
See Caterpillar® heading in kit catalog for more Caterpillar® replacement parts.
Bronze Filled PTFE Material | 3 1/2 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 | 160 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 | 3 in Nominal Inner Diameter | Buffer Seal
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.
Urethane Material | 1 1/4 in Nominal Inner Diameter | Buffer Seal
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.
Urethane Material | 3 in Nominal Inner Diameter | Buffer Seal
