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The compact Model BB7000 offers big job
boring capability on-site. Modular
components allow you to choose exactly
what you need for your application.
Modular versatility.
• Bearing support system consists of
three independent mounting fixtures
that can be used alone or in different
combinations. If space is limited, mount
the bearing cartridge directly on the
workpiece. Or use the bearing cartridge
with the spacer flange and/or the
mounting spider.
• Position the rotational drive unit
anyplace along the bar.
• Axial feed unit mounts on either end of
the bar.
Compact.
• Rotational drive unit is only 12" by 17",
weighs only 160 lbs (72.6 kg) with the
hydraulic motor attached.
• Standard mechanical axial feed is not
much larger than the bar diameter and
weighs less than 20 lbs (9.1 kg).
Powerful.
• Compact hydraulic power unit designed
specifically for portable machining.
• High power-to-weight ratio
• Smooth, trouble-free power transmission
to the boring head.
• Standard boring bar package produces up
to 11 hp at the bar at 60 rpm.
Designed with the operator in mind.
• Easy to operate and maintain.
• Roller bearings instead of bronze bush-
ings on support fixtures.
• Split tool carrier for easy mounting on the
bar.
• All axial feed units are interchangeable
• All axial feed units feature a quick-change
mounting system.
• The leadscrew has replaceable end
sections.
Features & Options
Standard machine (A)
A standard machine package consists of:
• Rotational drive unit
• Mechanical axial feed unit with infinitely
variable feed rate and feed direction
selector options of forward, neutral or
reverse.
• Two, three part mounting spider sets with
roller bearing cartridge, tool carrier-boring
head set for boring 8-inch to 40-inch
diameters, depending on configuration.
• Control pendant with power unit start/
stop, bar rotation on/off and rotation jog.
• A 15 or 25 hp hydraulic power unit with all
hoses and fittings.
Optional facing head (B)
The facing head features mechanical radial
feed with 4" stroke. Feed rate is adjustable
up to .010". Assembly mounts onto either
the 4" or 5" tool carrier assembly. On the
4" tool carrier the facing head will face 9.5
to 35 inches diameter.
CNC option (C)
CNC options are available. Contact the
factory for information.
Optional electronic axial feed unit (D)
Add digital readout control capabilities and
program axial automatic feed stops to the
Model BB7000. The electronic axial feed
features a reduction leadscrew gearbox, slip
rings for electrical impulse pickup and two
interchangeable feed motors that provide
infinitely adjustable feed rates from .026 to
4.8 inches per minute. The pedant provides
control of the boring operation and the
power unit with the following:
• Axial feed direction selector (forward ,
neutral, and reverse)
• Axial feed rate selector
• Bar rotation start/stop
• Power unit start/stop
• Digital tool position readout. This option
allows the operator to bore to a preset
distance without the need for visual
inspection.
A
B
C
D
11
Distance to bore
End-mount
bearing support
assembly
Axial feed
assembly
Standoff
Standoff
Boring head and
tool carrier
Boring bar
End-mount bearing
support assembly
Rotational drive
assembly
Determining Required Bar Length
Total required bar length = 32" (812.8) + distance to bore + (2 x standoff length)
NOTE: Recommended minimum standoff length is 7.5" (190.5)
6.0 (152.4) ref
Operational Dimensions
(Inches/mm)
Axial Feed Assembly
7.75 (196.9) diameter
3/8" hex
9.12 (231.6)
