Usage Tips:Description Stable Base: It adopts a 3.2*2.5inch enlarged rectangular base, which increases the contact area with the plane to ensure its stability when working. Precision Thread: It adopts precision threads to fit your motor tightly and is not easy to loosen. Application It is widely used in mining, presses, mills, manufacturing and packaging industries, conveyors, tuning instruments, automatic gates, etc. Specification Model: NMRV-030 Material: Aluminum Alloy Color: Silver Rotation Ratio: 10:1 Input Power: 0.06KW~0.18KW Max Input Speed: 1500rpm Input Bore Size: 11mm/0.43" Output Bore Size: 14mm/0.55" Flange Frame: 57*57mm/2.24*2.24'' Package Size: 15*13*11cm/5.9*5.1*4.3'' Product Size: 8.1*6.3*9.7cm/3.2*2.5*3.8'' Gross Weight: 1.35kg/2.98lbs Net Weight: 1kg/2.2lbs Package Included 1*Worm Gearbox Notes Please allow the slight color difference caused by the shooting light and 1-3 cm error due to manual measurement, and make sure you do not mind before ordering.