Guide ring for cylinders in PTFE + bronze, designed to ensure smooth sliding, reduced wear and long service life even in demanding conditions. Ideal for linear guides, pneumatic/hydraulic cylinders and mechanical applications with sliding contact.

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POLYPAC SM TYPE SEALS, FROM 129078 TO 669590
SM Selemaster series seals for rods in extremely severe conditions. Reinforced multi-element structure for high pressures up to 70 MPa, resistant to misalignment and vibration.
Guarantee safe & secure checkout
The Polypac SM series seals belong to the prestigious Selemaster family, reinforced seals with automatic operation specifically designed for sealing on hydraulic cylinder rods.
Design for extreme conditions: Specially designed to solve extremely severe sealing problems on hydraulic equipment operating at high and very high pressures in the presence of:
- Misalignment
- Intense vibration
- Sudden pressure changes
- Severe mechanical stress
Reinforced structure: Made up of a set of separately moulded elements with absolute precision:
- Fabric-reinforced NBR
- Anti-extrusion rings in POM
- Automatic operation
Exceptional performance:
| Feature | Specification |
|---|---|
| Pressure | up to 70 MPa |
| Temperature | -30°C to +130°C |
| Speed | up to 0.5 m/s |
Heavy-duty applications: Particularly recommended for:
- Earth-moving machinery (excavators, loaders)
- Equipment for front loaders
- High-power industrial presses
- Cylinders subject to shocks and severe conditions
Competitive benefits: ✓ Exceptional wear resistance ✓ Superior reliability in critical conditions ✓ Long operating life ✓ Minimal maintenance required
Professional range: from 129078 to 669590
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I/DWR series guide rings for rods in acetal resin. Precision-moulded to guide the cylinder rod, prevent metal-to-metal contact and absorb radial forces.
D11W Balsele series seals for pistons of hydraulic and pneumatic cylinders. Reinforced one-piece NBR with fabric and POM anti-extrusion ring, for medium and high pressures.
DPC series seals for pistons of double-acting hydraulic cylinders. Made up of NBR and POM elements, they operate at up to 70 MPa with excellent extrusion resistance.
Polypac B type seals in the range from 300225 to 444393, designed for rod sealing in hydraulic cylinders and mechanical applications requiring protection against fluid leakage and contamination. These seals are available in various inner/outer diameter and thickness sizes to suit different rod diameters.
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WRM series single-acting wipers in elastomeric compound. Profile designed for great stability in the housing, ideal for protecting rods from dirt and external contaminants.
DBR series seal code 224177 for applications on hydraulic cylinder pistons. Robust solution with anti-extrusion rings to ensure reliable sealing in standard operating conditions.
CH series packing seals for high-reliability hydraulic cylinders. Made up of multiple fabric-reinforced rubber elements, ideal for one-piece double-acting pistons under medium loads.
GS series seals for applications on cylinder rods or pistons. Compact and versatile design, suitable for standard industrial uses with good wear resistance.
E/DWR series guide rings for pistons in reinforced acetal resin. Moulded with tight tolerances to guide moving cylindrical parts and prevent metal-to-metal contact.
Seal type Polypac B 433334 with dimensions 110 mm (D) × 85 mm (d) × 13.5 mm (E), designed for rod sealing in hydraulic cylinders and mechanical applications with reciprocating motion.