Radial shaft seals

A radial shaft seal is a lip seal mounted on a rotating shaft to retain the lubricant inside the assembly and stop the entry of dust, water, or particles. It is selected by matching three dimensions: the shaft diameter (d), the housing bore diameter (D), and the seal height (h). These three values define the seat and the lip; if the shaft is worn or the housing is not cylindrical, it is advisable to evaluate a wear sleeve or a seal with a different geometry before requesting a quote.

In the catalog you will find references such as HMS5 RG, RN-2X10.8 B/M8/M10VX599, RC-20X30 CD, MVR1-60, and PI 202320. The letters describe the construction: HMS identifies single-lip seals with a spring, RG indicates the secondary lip variant for greater exclusion, RC corresponds to seals with reinforced casing, MVR to multi-lip designs, and PI to polyurethane profiles for more demanding service. The numeric nomenclature that follows the letters usually orders shaft, housing bore, and height, and in codes with slashes, lip or material variants are added.

Typical applications are gearboxes, speed reducers, pumps, electric motors, transmission shafts, and process equipment. In all these cases the seal works together with the bearing: if the lip loses contact or the elastomer hardens, the lubricant migrates and the contaminant enters, and bearing failure appears sooner. Therefore selection is not limited to size: the type of lubricant, shaft speed, and operating temperature also matter.

To request a quote for a radial shaft seal you need the complete code or, if you do not have it, the shaft diameter, housing bore, and height measurements, plus a photo or the housing drawing. If you have an equivalent from another brand, it also works for cross-referencing. We work with SKF and DBH, and across 7,401 references loaded in this subcategory you can inquire via WhatsApp or email indicating the code and quantity.

MR Accesorios Industriales supplies radial shaft seals in Buenos Aires, Argentina, with more than 80 years of experience in the industrial sector. If the seal is part of an assembly with bearings, housings, or power transmission, it is worth reviewing the entire system so the new seal does not inherit the shaft or housing problem.