5:1 to 7.5:1 90 degree gearbox NMRV063 computer virus tools reducer with oil seal Input gap 14mm/19mm/24mm Output gap diameter 25mm1. With ratio of 5:1,7.5: 1, 10: 1, 15: 1, 20: 1, 25: 1, 30:1,40: 1, 50: 1, 60: 1, 80: 1,100:1 for customers, this hyperlink with ratio 5:1-7.5:1, if desire 10:1 and 100:1 click on here to check.2. The enter gap diameter is 14mm/19mm/24mm for this link, You can desire consistent with your needs.3. This reducer has an oil seal and no input flange. and it's trojan horse gearbox connection with out an output shaft, If you need the flange or output shaft, please order on other product links.We also have NMRV25/30/40/50/75/90 Models, if need, touch us please.Color: silver and blue for random shipment (Sometimes only 1 coloration is available)Material for trojan horse reducer:housing: aluminum alloy die cast Worm gear: Nodular forged iron and bronzeFeature of worm reducer gearbox:1) High high quality aluminum alloy die solid gearbox2) High accuracy malicious program gear and worm shaft3) Less noise and lower temperature increase4) Easy mounting anc connection, high efficiencyThe mounting dimension of computer virus reducer NMRV063:(unit:mm)Package contains:1pcs NMRV63 reducerMounting dimension of All sequence of NMRV worm reducer:reducer*1