ST278 Bearing, Pulley Shaft Inner Ball

***NEW*** pulley shaft inner ball Bearing, 50mm ID by 90mm OD by 20mm, for H, A, B, C, 200, 230, 240, 300, 340, 350, 404, 460, 460U, 504, 504U, 674, 684, 685, 695, 784, 785, 884, 885, 895, 995, 2404, 2504, Super A, Super C, Super H; S73849, 140639R91, 272566R91, 67656C91, S60550, 302175R91, 67651C91, 67322C91, 67652C91