1.Bearing bar pitch:30,40,60mm 2.Cross bar pitch;50-100mm 3.Plain, I ... x 5 x 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, ... (center to center): ,30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 ... also be according to client's requirement and 30, 40, 50,60mm are recommended,3) Cross Bar Pitch (center to ... center): 40,50, 50.16,65,76, 100, 101.6mm ...