Hydraulic seal SKF UN 16X22X4.5

SKF UN 16X22X4.5 is a hydraulic seal reference, within Seals. Request a quote for UN 16X22X4.5 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The SKF UN series hydraulic seal is a single-lip seal designed for cylinder rods and hydraulic systems. Its geometry retains pressurized fluid and scrapes the residual film, protecting the system from leaks and contamination. It is manufactured from elastomers resistant to mineral and hydraulic oils. At MR Accesorios Industriales we supply this line for industrial and mobile applications, and we help you identify the correct size from the part number marked on the part.

The UN series designation is read directly on the product: for example, UN 16X22X4.5 indicates a seal with a 16 mm inner diameter, 22 mm outer diameter and 4.5 mm height. This nomenclature summarizes the three critical dimensions for installation. In the UN series there are no additional suffixes in the usual part numbers; the number following the letters corresponds to those dimensions. If you find a part number with extra letters, it is advisable to check the manufacturer's catalogue to interpret material or design variants.

UN series hydraulic seals are used in hydraulic cylinders of agricultural machinery, road equipment, presses, cranes and lifting systems. They also appear in actuators in the metallurgical, plastics and food industries, where pressurized oil must be contained. In Argentina they are common in the maintenance of combine harvesters, tractors and earthmoving equipment, as well as in test benches and stationary hydraulic units. Their function is twofold: sealing the rod and preventing dust or water from entering the circuit.

To select the correct seal, in addition to the dimensions, take into account the type of fluid, the working temperature and the system pressure. The UN series is intended for rods with reciprocating motion; the lip must face the pressure. Before mounting, check that the rod surface has no burrs or excessive wear, and lubricate the lip with the same oil as the system. Poor alignment or large axial play shortens seal life. If the rod is damaged, replace or repair it before installing the seal.

Regarding equivalences, hydraulic seals are identified by their standardized dimensions, so a part number from another brand with the same dimensions may be interchangeable. However, differences in the elastomer compound or lip design can affect performance. Do not invent cross-reference numbers: always compare the dimensions and consult the manufacturer or a technical distributor. At MR Accesorios Industriales we can guide you on compatibilities without compromising the integrity of the system.

If you need to replace a hydraulic seal, send us the full part number on WhatsApp. With the size and a photo of the part we can identify the SKF UN series reference and quote you the right option. We handle technical maintenance and repair inquiries throughout Argentina.

This description provides guidance on the product type. Check the configuration and dimensions of this reference.