... : 10 - 280 mmOutside Diameter: 12 - 360 mmModel Number: 30200,30300,32200,32300,33000 ser...Precision Rating: P0,P6,P5Seals Type: or ... SRL ,PS2, Alvania R12 and so on SeriesSeries 30200, 30300, 32200, 32300, 33000, etc. Ring MaterialChrome Steel, Carbon steel, Stainless steel ...