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Rod seal RSD 7x12x4,5 PU

CodeRSD 0070 0120 045 C0
AvailabilityOn request
Rod seal RSD 7x12x4,5 PU—

Technical data

Properties
Seal typeRSD
Material typePU
Material codeC0
Foreign code2ERSD004
BrandArtic seals
Weight1g
Hydraulic seals dimension
Rod diameter d7mm
Groove Diameter D12mm
Seal width h4,5mm

Documents

Description

The RSD 7x12x4,5 PU U-ring [2ERSD004] is a double-lip sealing ring made of polyurethane C0 by the renowned Italian manufacturer Artic Seals. It is designed for use in hydraulic cylinders. Both lips of the ring are pressed against the mating surface thanks to the elasticity of the material, which ensures effective sealing. The additional lip stabilises the seal and protects it against external contamination. The design of the ring prevents the stick-slip effect and supports the sealing action at low temperatures. Technical data: Working pressure: up to 400 bar Linear speed: up to 0,5 m/s Hardness: 93 Shore A ±2 Material: polyurethane C0 with high abrasion resistance and low compression set The product is available in size 7x12x4,5 mm. The manufacturer code is [2ERSD004].

Material

PU / TPU / H-PU (polyurethane)

  • Standard PU / TPU-30 °C to +80 °C

Best for high pressure and abrasion, in mineral hydraulic oil. Standard PU must never meet hot water, steam or brake fluid, or run hotter than +90 °C.

Chemical resistance
Can be usedDo not use
Extreme pressure and pulsation (up to 40-50 MPa, very resistant to extrusion into the gap)Hot water and steam with standard PU: hydrolysis, it breaks down into powder
Abrasion, friction, cutting and tearing (4-5 times tougher than NBR)Glycol brake fluid (DOT 3, DOT 4, DOT 5.1): swells quickly
Mineral hydraulic oil (HL, HLP) and greaseHigh temperatures above +90 to +100 °C with standard TPU: it softens
Fuel oil, diesel and technical oils (aliphatic hydrocarbons)Strong (concentrated) acids and alkalis: sulfuric, nitric, caustic soda
Ozone, weather and sunlight (does not crack from weather)Acetone, MEK, toluene, benzene, dichloromethane (polar and aromatic solvents)
Water-based fire-resistant fluids HFA, HFB (only special H-PU)Synthetic ester oils and fire-resistant fluid HFD-R
Dry compressed air and technical gasesStrong alcohols (methanol, ethanol): swelling

Water and heat destroy standard PU: above +50 to +60 °C in water or damp oil it turns into a sticky paste or crumbles. If the system contains water or an emulsion, use only H-PU (hydrolysis-resistant).

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