Page 14 BB4500-BB5000 Operating Manual
2.3.2 Axial feed unit
The AFU is held in place by two clamp collars and may
be secured in any position along the bar. It travels with
the bar and tool head axially along a fixed leadscrew.
Select the feed direction by shifting the feed shaft posi-
tion (see Section 3.4.1 on page 40 for more information).
2.3.3 Leadscrew
The fixed leadscrew may be mounted either to the RDU or to the axial leadscrew-
mounting block.
For the BB4500, standard leadscrews have 12" (305 mm) or 24" (610 mm) of
travel.
For the BB5000, standard leadscrews have 12" (305 mm), 24" (610 mm), or 36"
(914 mm) of travel.
Other lengths are available to suit your requirements. Contact CLIMAX for more
information.
2.3.4 BB4500 tool heads
For the BB4500, the split-body tool heads may be
clamped anywhere along the bar. The set of three tool
heads bore 4–10" (102–254 mm) diameter. The tool
heads hold tool bits that are 0.5" (12 mm) square.
Boring heads accept 0.5" (12 mm) square tool bits and
machine sizes that are 4–10" (102–152 mm), 6–8"
(152–203 mm), and 8–10" (203–254 mm) in diameter.
They are compatible with either high-speed steel
(HSS) or carbide-tipped tool bits.
For boring diameters less than 4" (102 mm), use the broached tooling holes in the
bar. For boring diameters less than 2" (51 mm), use the small boring option.
Blank and pre-ground 0.5" (12 mm) tool bits are available for the slotted boring
heads.
2.3.5 BB5000 tool heads
For the BB5000, the split-body tool heads may be clamped anywhere along the
bar.
FIGURE 2-4. BB4500 TOOL HEADS
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