Standard Value of Synchronizing Belt for Width Adjustment of Timing Belt on Samsung SM321 Standard Timing Belt Tension (N): 16.5 Frequency (Hz): 18.5 ± 10% Remarks: Use the U-505(Tension Gage) / Use the jig for tension check Conveyor Moving Frame Assembly on Samsung Techwin SM321 SMT Machine Standard Value of Motor belt for Width Adjustment of Timing Belt on Samsung SM321