Heavy Semi-Universal Dividing Head (312 Series)

Heavy 312 series semi-universal dividing head is one of the most important attachment for big milling machine. It can be used for simple indexing and dividing circle into any equal parts, etc.The 312 series with right handwheel.Items/Specification311260311300311400312500/3121000Center Height mm260300400500/1000Swivel angle of single from horizontal to upward≤95°≤95°≤95°≤95°Swivel angle of spindle fromhorizontal to downward≤5°≤5°≤5°≤5°Rotating angle of spindle for one complete revolution of dividing handle9°9°9°9°Min.reading of vernier10´´10´´10´´10´´Worm gear ratio1:401:401:401:40Taper of spindle boreMT6MT6MT6MT5Width of locating key.mm18/2018/2018/2022Diameter of short taper of spindle nose for mounting flange.mmΦ82.563Φ82.563Φ82.563Φ106.375/Φ212.375Numbers of hole in dividing plate:1st plate24,25,28,30,34,37,38,39,41,42,4324,25,28,30,34,37,38,39,41,42,4324,25,28,30,34,37,38,39,41,42,4324,25,28,30,34,37,38,39,41,42,43Numbers of hole in dividing plate:2nd plate46,47,49,51,53,54,57,58,59,62,6646,47,49,51,53,54,57,58,59,62,6646,47,49,51,53,54,57,58,59,62,6646,47,49,51,53,54,57,58,59,62,66Individual indexing error of the spindle for one complete revolution of dividing handle80´´80´´80´´500/1000Cumulate error at any 1/4 periphery of spindle±70´´±70´´±70´´±1´´Max.bearing kg380380380100/500