STE106-105-090-013 is a double acting piston seal that works as double acting - 4 pieces and can be used in piston applications. The material used on this double acting piston seal is made of PU/NBR/POM 98/80 shore. The maximum allowed pressure is 400 BAR.
The dimensions has an inner diameter of 90 mm, an outer diameter of 105 mm and a height of 13.5 mm.
About the sealing profile STE106
STE106 piston seals are used on double acting hydraulic cylinders. Two POM back-up rings provide sealing rings, made up of a special extrustion resistant PU material, long service life under high pressures. STE106 piston seals consists of 4 pieces, including NBR energising ring.
About the material PU/NBR/POM
PU is moulded with injection techniques. It has excellent mechanical properties such as high tensile strength, wear resistance, tear strength, and extrusion resistance. It offers a good resistance to air, ozone, mineral oils, grease and aliphatic hydrocarbons. Working Temperature Range: -30°C to 100°C. Nitrile is a widely used nitrile butadiene and acrylo nitrile polymer. The NBR formulas typically contains between 30% and 50% acrylonitrile (ACN). The NBR which has a working temperature between -30°C and +105°C (peak temp. at +130°C) show extremely high resistance under different working conditions such as mineral oils (H, H-L and H-LP type lubricating oils) and grease and mineral based fire resistance oils (HFB and HFC group oils), vegetable and organic oils, and aliphatic hydrocarbons (propane, butane, petrol). NBR is not recommended for aromatic hydrocarbons (benzene, trichloroethylene, HFD type fire resistance oils), glycol and ether contained break hydraulics. Polyacetal (POM) (Polyoxymethylene) materials are used as back-up rings or guidening element materials in hydraulic and pneumatic systems. There are two types of POM, filled with or without fibreglass, depending on their use. Despite working temperatures ranging from -40°C to +140°C, real dimensions can not remain stable in excess of 100°C. It can be used safely with mineral oils and HFA, HFB type oils. Types with added fibreglass provide longer lasting contact pressure resistance.
