" Flat" type---as for this kind of floating seal, the rubber gasket is O-type; one metal ring is flat-shaped with very wide sealing face and location hole on the back for fixation. Such kind of oil seal is not regular oil seal, which is commonly called as " flat-type oil seal" .

Product description: dimension: OD*ID*H248mm×290mm×13mm; service life: 5000-8000 hours; product working surface hardness: HRC58—72; abrasive surface flatness: GB184－80, Grade 4; abrasive surface roughness: GB1031-68, Ra0.02-0.032 μm; ambient temperature for the product under applicable working condition: -60℃ to 200℃.