1439 slotWide slot take up ball or roller bearing. Bolt Diameter (F) 1116. Bolt hole spacing 412.750 mm. Bore size 76.200 mm. Frame type Wide slot standard duty.HomeOthersNAC-1439 – SLOT DRILL. NAC-1439 - SLOT DRILL. NAC-1439 – SLOT DRILL. SLOT DRILL Model: SD-09.00 MM. NAC-1439