SpecificationTypeSize(mm)Thickness(mm)Hole diameter(mm)Weight(kg)R25N150x1508301.4R32L, R32N200x20010353.0R32S, R32SS200x20012353.3R38N200x20012413.6R51L200x20030608.8R51N250x250406018.5T30200x2008362.46T40-20mm200x20012543.5T40-16mm200x20015544.58T52220x220356512.