Bearing structure: B: BALL (ball bearing)Voltage: AC 220V-240VPower: 65 (W) Parallel hole spacing: 166MMFrequency: 50/60 (Hz)Speed: 2300-2700 (R/min)Air volume: 335\350 (CFM)Noise: 70DBWeight: 1600 (g) / or 1.6KgPacking: Bulk, no separate box, 10 sets of carton foam packaging / 1 full box;Frame: black-painted aluminum alloy die-casting anti-corrosion and moisture-proof structure;Wind leaf: injection molding, PBT + 30% glass line + VO grade flame retardant;Bearing: low noise imported ball bearing;Insulation: Enameled wire is made of Class B insulation and has a temperature resistance of 120 degrees Celsius;Wiring method: two lead typeInsulation resistance: 500 megaohms or more;Withstand voltage: leakage current 0.5mA. Withstand voltage 1500V / 1 minute;Operating voltage: 220VThe fan blade direction is seen as counterclockwise;Ambient temperature (°C): -20°C~75°CB: (ball bearing)Life: Working environment temperature 40 ° C B: (ball bearing) 40000-60000 (hours)Our serviceQuality assurance is the premise: brand new original authentic, ebm-papst original factory custom.Price concessions are the basis: as an Priscilla-level authorized agent, we have a more affordable price for your reference.Enthusiasm is the attitude: every customer is a boon to us, we will be full of passion and hospitality.Good selection plan : the technician can provide you with a more perfect fan solution, avoiding the wrong selection of the fan, thus you will no longer worry about the selection of the fan.mpact design. The entire product line is available in both AC and GreenTech EC technology.Application field Medical Rail vehicle Drive cooling Hotel Industrial cleaning Electronic product New energy vehicles SupermarketRegards for the Centrifugal/Axial fan,we have many differents models following for your reference,any your requirements ,our group will try our best to serve you.