Hydraulic seal SKF STR 19-334-395A

SKF STR 19-334-395A is a hydraulic seal reference, within Seals. Request a quote for STR 19-334-395A via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The SKF STR back-up ring is a hydraulic sealing component installed next to the main seal to prevent its extrusion in high-pressure applications. It acts as a mechanical support, extending the service life of the seal and maintaining sealing performance in demanding cylinders and hydraulic systems. MR Accesorios Industriales carries this line as part of its industrial seals offering, with technical advice to select the correct size according to the housing and service conditions.

The STR designation identifies SKF back-up rings for hydraulic seals. The series codes combine numbers that define the inner diameter and thickness; for example, STR 19-326-395A or STR 19-348-395A correspond to different sizes within the same category. The A suffix indicates a construction variant, generally associated with the material or profile design. To choose the correct ring, it is essential to cross-reference the code with the housing and main seal dimensions.

These rings are used in hydraulic cylinders of agricultural machinery, road equipment, presses, cranes and power transmission systems. In Argentina, they are common in combine harvesters, tractors, backhoe loaders and earthmoving equipment, where working pressures and repetitive cycles demand reliable back-up support. They are also used in the metallurgical and mining industries and in lifting equipment operating with hydraulic oils at moderate temperatures.

To select the right back-up ring, take into account the working pressure, fluid temperature and chemical compatibility with the hydraulic oil. Installation must be carried out on a clean, burr-free surface, verifying that the ring seats correctly in the groove. Prior lubrication facilitates installation and prevents damage to the lip of the main seal. Precise alignment of the cylinder and rod reduces wear and improves system efficiency.

SKF STR back-up rings are interchangeable with equivalent products from other recognized brands, as long as the nominal dimensions and material are respected. When requesting a quote, it is advisable to provide the full code and housing dimensions to ensure compatibility. MR Accesorios Industriales has experience in hydraulic seals and can guide you in choosing the component that best suits your equipment.

If you need to replace an SKF STR back-up ring, send us the code on WhatsApp and we will quote you promptly. At MR Accesorios Industriales we work with recognized brands and provide technical support so you can find the right part. Write to us and we will help you keep your equipment running.

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