Rubber O.D. With Beaded (Ribbed) O.D.Spring-LoadedSingle-Lip.Specialized Lip Geometry For Metric Size Conformance To Iso Standards.Specification: shaft diameter: 35 mmseal type: Single Lip with Springoutside diameter: 49 mmmaximum shaft surface speed: 3600 fpmwidth: 6 mmpressure tolerance: 10 psi @ 0-1000 fpmlip material: Nitrilecontinuous temperature range: -40 to 250°Fdesign type: HMS5typical application: Engines, Axles, Transmissions, Pumps, Motors, Speed Reducers.