This is single cartridge seal.Can replace Burgmann Cartex-QN. Features Advantages Operating range Shaft diameter:d1 = 25 … 100 mm (1.000″ … 4.000″)Other sizes on requestTemperature:t = -40 °C … 220 °C (-40 °F … 428 °F)(Check O-Ring resistance) Sliding face material combination BQ1Pressure: p1 = 25 bar (363 PSI)Sliding velocity: vg = 16 m/s (52 … Continue reading AX-CARTEX-QN