UN UNS UHS Piston Seals For Hydraulic Cylinders Oil Seals 32*40*5

32*40*5 UN UNS UHS Type Hydraulic Cylinder Piston Rod Oil Seal

The UNS/UN Piston Rod Seal has a wide cross-section and is an asymmetrical u-shaped

sealing ring with the same height of the inner and outer lips. It is easy to fit into a monolithic

structure. Due to the wide cross-section, UNS Piston Rod Seal is generally used in a

hydraulic cylinder with low pressure.Having been used very widely in hydraulic cylinders,

UNS can be used for piston and rod appliions because of having the height of both

sealing lips equal.

Polyurethane (PU) is a special material that offers the resilience of rubber combined with

the toughness and durableness. It allows people to substitute rubber, plastic and metal with

PU. Polyurethane can reduce factory maintenance and OEM product cost. Polyurethane has

better abrasion and tear resistance than rubbers, and offering higher load bearing capacity.

Compared PU with plastic, polyurethane not only offers excellent impact resistance, but also

offers excellent wear resistant and high tensile strength. Polyurethane have subsituted metals

in sleeve bearings, wear plates, conveyor rollers, rollers and various other parts, with benefits

such as weight reduction, noise abatement and wear improvements

Polyurethane oil seals are mainly used for hydraulic cylinders, easy to install and scrape the

dust attached to the piston rod. Polyurethane oil seal has good physical and mechanical

properties, wear resistance and oil resistance. It is suitable for the worst working environment,

prevents foreign impurities from entering, and achieves excellent sealing performance.

They are the most commonly used seals in medium and high pressure hydraulic cylinders.