Hydraulic seal SKF 504279

SKF 504279 is a hydraulic seal reference, within Seals. Request a quote for 504279 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

SKF hydraulic seals are sealing components mounted in cylinders, pumps and valves to contain pressurized fluid and prevent leaks. In a hydraulic system, a leak not only wastes oil: it lowers working pressure, contaminates the environment and accelerates wear on pumps and valves. That is why the correct seal is chosen by application, not by similarity. At MR Accesorios Industriales we supply the SKF line and help you identify the part number you need.

The part numbers in this line are numeric, six digits, and do not follow a sequence that can be interpreted at a glance: each number identifies a specific geometry and compound. Therefore, it is not advisable to rely on similarities between close part numbers. The examples we handle are 504262, 504268, 504270 and 504279, but there are many other references within the same family. The safe way to order is with the complete part number and, if possible, a photo or sample of the original seal.

These seals are used in hydraulic cylinders of agricultural, road and earthmoving machinery; in presses and equipment in the metallurgical industry; in lifting systems and platforms; and in hydraulic equipment in the food and plastics industries. In Argentina they are commonly found in combine harvesters, sprayers, backhoes and road equipment that work with pressurized oil and demand reliable sealing under dust and variable temperature conditions.

To properly select a hydraulic seal, consider working pressure, temperature, fluid and travel speed. The surface finish of the rod or cylinder and the radial clearance also matter: a poorly dimensioned seal damages quickly or does not seal. During mounting, verify that the housing is clean and free of burrs, lubricate the seal with the same system oil and avoid twisting it when inserting. Correct alignment extends the service life of the assembly.

Regarding equivalents, hydraulic seals are identified by part number and dimensions, not by brand. The same part number may correspond to different manufacturers, but they are not always interchangeable: the compound, lip and tolerance change. If you do not have the part number, we can cross-reference the measurement taken with a caliper and the type of application. We do not invent cross-references: we validate them with a sample or measurement. Send us the part number or measurements via WhatsApp and we will quote it.

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