Emerson's metric-sized Sealmaster PN Gold bearings meet sanitation requirements
Emerson Industrial Automation introduces metric-sized Sealmaster PN Gold bearings as an extension of the company's CRES series (Corrosion Resistant Engineered Solutions) of bearings. Sealmaster CRES bearings use various materials and sealing systems to extend life and optimize performance in corrosive conditions, while meeting CIP (Clean in Place) and SIP (Steam in Place) sanitation requirements. Part of the CRES series, the Sealmaster PN Gold line now includes metric bore sizes for mounted ball bearings (20 to 60 mm) and “ER” cylindrical OD ball bearings (20 to 60 mm). They are equipped with multiple-lip seals and specialty coatings, and available with features like bolt-on end caps and backside shields. PN Gold bearings are engineered with high-phosphorous, electroless-nickel-plated inner and outer races, and multi-directional triple-lip seals. A zone-hardening process on the inner races hardens only the region under the ball path. The high-performance triple-lip contact seals provide multidirectional sealing to retain lubrication and exclude contaminants. Grease cavities in the seal assembly are factory filled with H1 Food Grade lubricant. A Tapered Land profile machined on the outer race redirects lubricant back into the raceway for improved lubricant circulation. A land-riding retainer design allows 360-degree grease circulation around the rolling elements for better grease retention and utilization.
Solid base housings on Sealmaster PN Gold bearings are machined from 316 stainless steel or high-strength composite with minimal gaps for fillings. Stainless steel bolt ferrules reinforce the bolt holes on composite bases for high load capacity and strength.