Piston Seals
Search in Category
Filter Your Search
Category Group
Durometer
Material
Nominal Inner Diameter
Nominal Outer Diameter
Unit of Measure
Shop by Category
Designed to fit on one or two piece pistons, this piston seal employs a nitrile seal for high sealability, nylon split back-ups for extrusion resistance, and two split bearing rings. No further support bearings are required.
70A Durometer | NBR Material | 75 MM Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
The MPSU300 is a compact, double-acting piston seal consisting of two parts: a urethane sealing ring with a pronounced sealing edge and a rectangular nitrile energizer to prevent the seal from twisting within the groove. It also has low friction and smooth operating movement even at low linear velocities.
94A; 70/80A Durometer | Urethane Material | 79 MM Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
The MPSU300 is a compact, double-acting piston seal consisting of two parts: a urethane sealing ring with a pronounced sealing edge and a rectangular nitrile energizer to prevent the seal from twisting within the groove. It also has low friction and smooth operating movement even at low linear velocities.
94A; 70/80A Durometer | Urethane Material | 55 MM Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
The MPSU300 is a compact, double-acting piston seal consisting of two parts: a urethane sealing ring with a pronounced sealing edge and a rectangular nitrile energizer to prevent the seal from twisting within the groove. It also has low friction and smooth operating movement even at low linear velocities.
94A; 70/80A Durometer | Urethane Material | 64.5 MM Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
A heavy duty double-acting assembly, the capped piston T-seal exhibits excellent sealability, extrusion resistance, and wearability. T-seals with “BR” suffix utilize a Bronze Filled PTFE cap instead of the standard Glass Filled PTFE cap.
PTFE; Nylon; Rubber Material | 1.626 in Nominal Inner Diameter | Capped Piston T-Seal
Features
- Glass-filled PTFE cap, nylon back-up, rubber energizer
Piston diameter “I” dimensions are given for pistons without wear rings.
15% Glass Filled PTFE Material | 1.598 in Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
Manufactured from 55 Shore D polyester reinforced with <5% glass fiber, style PS1704 offers compact, low friction sealing for light to medium duty hydraulic cylinders. Style PS1704 is easily stretched over the piston without needing to be resized as in the PS1400 seals. Directly interchangeable with style PS1400 and PS1500 piston seals. Piston diameter “I” dimensions are given for pistons without wear rings.
70A Durometer | Poly-Trel™ Thermoplastic Material | 1.606 in Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
The PS1850 piston seal can be used interchangeably with the PS1800 style piston seal. This seal provides improved heat resistance for demanding applications. Piston diameter “I” dimensions are given for pistons without wear rings.
Bronze Filled PTFE Material | 1 3/16 in Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
The Style PSC is a double acting piston seal designed to replace o-rings, quad-rings, and T-seals with the same groove dimensions (O-ring dash number). Style 575 urethane back-up rings may be added to either or both sides of the “PSC” to accommodate wider groove widths. The PSC is made of 95A Durometer polyurethane, giving it high extrusion and abrasion resistance. The crowned sealing surface produces a positive seal from vacuum to high pressure. Hercules® Sealing Products also offers a wide base (WB) Style PSC piston seal. These wide base seals have the same characteristics of the standard PSC seals but offer a wider base, eliminating the need to use back-up rings to accommodate wider grooves. Piston diameter “I” dimensions are given for piston without wear rings.
95A; 70A Durometer | Polyurethane Material | 5 1/2 in Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
Molded from a PTFE base material with 40% bronze and machined to exacting tolerances, this seal exhibits low friction and high strength corners are chamfered for cold flow resistance.
40% Bronze Filled PTFE Material | 4 3/8 in Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
