Uxcell Synchronous Motor Product name : synchronous motor; model : tyj50-8a7; Voltage : AC 220/240V Frequency : 50 hz; power : 4W; speed : 4 r/Min Type : cw/ccw; motor size : 49 x 17Mm/1.9" x 0.67"(D*h); shaft size : 13 x 14 mm/0.51" x 0.55"(D*l) Mount hole Dia. : 4 mm/0.16"; main material : metal, plastic; color : Silver tone Net weight : 75 g; Package Content : 1 x synchronous motor