FEATURES AND BENEFITS
BEARING RACES The inner and outer ring of the Sealmaster® ERX-Treme PN Gold bearing are high phosphorous, electroless nickel plated 52100 steel for exceptional corrosion resistance and the outer race profile features the Tapered Lands geometry. The outer land surface in a conventional bearing is parallel to the axis of the inner ring. The Tapered Lands surface is tapered in a radial direction toward the bearing race. This subtle yet crucial design change ensures that lubricant will be easily redirected back to the raceway. With improved bearing lubricant circulation comes significantly longer bearing service life. This improved circulation and service life comes without any reductions in bearing radial or thrust capacities. * For bearings that are maintained and relubricated on a regular basis, there is no significant difference in expected service life.
HIGH PERFORMANCE SEAL (HPS) The triple lip contact seal design provides multi-directional sealing to minimize contamination ingress and retain lubrication – standard on all units. The 304 stainless steel shell and flingers protect from incoming contaminants and provide wear resistant contact surface to all three seal lips. The grease cavities in seal assembly are factory-filled with lubricant prior to shipment for additional contaminant resistance.
MULTIPLE LOCKING METHODS SETSCREW LOCKING 300 series stainless steel 120° spaced, balanced three point contact minimizes inner ring distortion vibration, reduces noise, and improves reliability.
SKWEZLOC® CONCENTRIC LOCKING COLLAR SKWEZLOC is a concentric collar clamp design that results in near-perfect concentricity of the shaft to bearing bore and maintains near perfect ball path roundness, while reducing fretting corrosion. This design eliminates the shaft damage of setscrew locking, and minimizes bearing induced vibration for smoother quieter operation. The collar is fluoropolymer coated with an Endurion* coated TORX head cap screw that outlasts stripping 12 times longer than hex head cap screws.
SPECIALIZED FOOD GRADE LUBRICATION The Sealmaster® PN Gold bearings are factory filled with Sealmaster GoldPlex-FG (Food Grade) grease (USDA H1 approved) which is suitable for mounted bearing lubrication where incidental contact with food products may occur in any application where clean, routine lubrication is required. ZONE
HARDENING INNER RACE Sealmaster incorporates a unique heat treat process that hardens the inner race only where it is needed…under the ball path. The high phosphorous electroless nickel plated 52100 steel, zone hardened inner race results improved lock reliability as a result of less distortion at setscrew location and improved thread conformity resulting in improved clamping and resistance to setscrew back-out.
LAND RIDING RETAINER The Sealmaster unique land riding metal retainer design provides superior pocket clearance that allows for 360° grease circulation around the rolling elements resulting in better retained and utilized lubrication. The land riding design of the retainer minimizes wear on both Ball and retainer, while maximizing stability, which is especially important in applications involving vibration, shock loading or high operating speeds. "
