The 42X55X8HMS5RG is a single-lip radial shaft seal from SKF, a trusted manufacturer and industry leader. This metric HMS5 type seal has a nitrile rubber outside which provides enhanced sealing ability. The spring-loaded sealing lip maintains tight sealing even if the seal lip has suffered excessive wear, and aids in quick responses handling dynamic runout. At Quality Bearings Online, we offer a comprehensive range of high quality and reliable radial shaft seals, including the SKF HMS5 and HMSA10 lines. These seals are ISO 6194-1 and DIN 3760 compliant, offering the best sealing performance possible in a wide range of industrial applications. Extensive experience, research, and material development by SKF have produced the robust nitrile rubber with resistance to aging, excellent pumping ability, and wear resistance. The dimensions of this seal are 42x55x8mm. Find more details on the 42X55X8 HMS5RG below.

Key Features

Enhanced Rubber Outside Diameter (RG)

The outside diameter of the 42X55X8HMS5RG is made of SKF’s optimized nitrile rubber compound (RG), Acrylonitrile-butadiene, which has been designed following developments in sealing material research. Nitrile rubber can be used in applications with oil or grease lubrication in temperatures ranging from -40oC to 100oC (-40oF to 210oF), or up to 120oC (250oF) for short periods of time. This nitrile rubber has greatly extended service life compared to standard NBR and high-performance NBR compounds, reducing the need for maintenance and replacement.

Improved Sealing Performance

HMS5 seals like the 42X55X8 HMS5RG offer improved sealing performance through features like an optimized rubber outside diameter and spring-loaded sealing lips. These elements ensure effective sealing even in challenging conditions, such as considerable surface roughness or split housings.

Versatile Applications

No matter your industry, the SKF 42X55X8HMS5RG is able to support your applications sealing requirements. It’s design and ISO 6194-1 and DIN 3760 compliance make this HMS5 shaft seal suitable for a wide range of industrial applications.