... 20 x 3 to 100 x 62).Bearing bar pitches maybe12.5,15,25, 30,34,40,50,60,80mm,of which ... 30 and 40mm are recommended.3).Corss bar pitch maybe 38-200mm,of which 50 ... in our production area. ------------------------------------------------------------------------------------------------------------------Grating Dimension Bearing bar pitch(mm)12.5, 15,25, 30, 30.16, 32.5, 34, 40, 41 ...