Product Name: High Quality Floating Seal Made by Alloy Steel Mechanical Seal Model NO.: 2M2858 Balance: Balanced Standard: Standard Performance: Wear Temperature: Temperature Mechanical Seal Speed: General Speed Mechanical Seal Pressure: Medium Pressure Mechanical Seals Structure: Double-End Transport Package: Carton Specification: SGS Origin: Wuhan, China. HS Code: 8487900000 Product Description Description:This kind of floating seal usually install on bottom roller/carrier roller/frontidler/sprocket of Excavator,the assembly of a floating seal is made up of two matching halves,each half has a metal ring and a rubber ring.Detailed Description:The floating seal is extruded against rubber ring by collar and floating seal ring to form primary sealing, and then the mating of sealing face of two floating seal rings (by oil film lubrication to allow one ring moving and the other still) to form secondary sealing. Therefore, the rubber gasket and metal ring are equally important to floating seal, and correct and professional installation must be emphasized. based on the past experience, the installation requirement for floating seal using O-type rubber gasket is slightly higher, so it is normal to observe a little lubricating oil is spilled out from the mating face of floating seal ring external diameter during about one-hour movement for commissioning when it is just installed, which is not oil leakage. After the commissioning, oil spilling will stop. Otherwise, it may be caused by incorrect installation or other reasons. The problem must be concerned and solved.2M2858 can be used in Caterpillar excavator model: 205B,211B,215,215B,225,229.