LNS GT 326-E, Instruction Manual, Page: 69 / 218

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Ch 7 GENERAL DESCRIPTION
GT 326-E
7.9.2 Anti-vibration Front Rest V (or round) blocks
7.9.2.1 Adjustment
To avoid excessive wear of the V-blocks and efficient performance they never clamp on the O.D.
of the bar stock. There should be approximately a 1mm gap (0.5 mm per side) between the O.D.
of the bar and the side of the V-blocks to allow oil to flow around the bar.
V-shaped blocks are installed for round bar stock.
Round-shaped blocks are for hexagonal and square materials. They are sized to the bar
di 0.2 mm.
Front rest blocks
Round bar: V block Hex bar: O block Square bar: O block

O block
Block Part No. Diameter(
ΦA)
mm Optimum bar range mm
XA1.07.P061A.08 8 5~6.5
XA1.07.P061A.09 9 6~7.5
XA1.07.P061A.10 10 7~8.5
XA1.07.P061A.11 11 8~9.5
XA1.07.P061A.12 12 9~10.5
XA1.07.P061A.13 13 10~11.5
XA1.07.P061A.14 14 11~12.5
XA1.07.P061A.15 15 12~13.5
XA1.07.P061A.16 16 13~14.5