10: 1-100: 1 Worm Gearbox NMRV050 19mm Input shaft RV050 Speed Reducer for 110mm*110mm Square flange motorNote:We have 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 is for 10:1 to 100:1, ratio 5:1 and 7.5:1 for one more link.This connection of the worm gearbox Without the shaft of the hose and without the output worm shaft, and it's for 19mm Dia key sort enter shaft. When assembling this gearbox with motor, the enter of the nineteen mm diameter can be related directly with the key. Color: silver and blue (sometimes only one color)Material for worm reducer:housing: aluminum alloy die solid Worm gear: Nodular forged iron and bronzeFeature of computer virus reducer gearbox:1) High high quality aluminum alloy die forged gearbox2) High accuracy malicious program gear and trojan horse shaft3) Less noise and decrease temperature increase4) Easy mounting anc connection, excessive efficiencyDrawing of the NMRV050 worm reducer:We also have malicious program reducer parts corresponding to output shft, torque arm and output flange,If it's best to click the following link to buy: NMRV50 Dual or Single output shaft:Torsion arm :NMRV50 Output flangeThe production line and stock view:Worm Gearbox*1