Motor vertical double bearing seat synchronous wheel velocity reducer gearbox high torque rotating device synchronous belt singleProduct name: 2GT/GT2 pulley+bearing seatProduct material: aluminum alloyTooth pitch: 2mmNumber of teeth: 20/60 teethBelt: 260mm60T aperture: 8mm20T aperture: 3/3.17/4/5/6/6.35/8mmWidth: 6mm