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PRESS FIT
BUSHINGS: Designated as type P, are the least expensive and most
popular bushings. Generally used in single step drilling. Pressed flush
in the fixture plate they can be spaced closer together than other types
of bushings. Available as unground with additional outside diameter
stock. |
HEAD
PRESS SIT BUSHINGS: Designated as type H, they can accept
heavier axial loads than type P bushings whether mounted with the head
above the fixture plate or recessed into the fixture. Also available as
unground with additional outside diameter stock. |
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SLIP/FIXED
RENEWABLE BUSHINGS:Designated
as type SF, these bushings are mostly used when the number of holes
drilled will be greater than the expected life of the bushing. Type SF
is also used when a hole is drilled, then a reaming or tapping operation
is required. By slipping the bushing out of the liner anther size may;
be installed for the next operation to be performed. Clamps or lock
screws are used to secure them in the fixture. |
FIXED
RENEWABLE BUSHINGS:Designated
as type FM, these bushings are mostly used when the number of holes
drilled will be greater than the expected life of the bushing. By
slipping the bushing out of the liner another size may be installed for
the next operation to be performed. Clamps or lock screws are used to
secure them in the fixture. |
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LINER
BUSHINGS: Designated as type L, are similar to press fit type
bushings but are pressed in the fixture to maintain precise location for
the slip fixed bushings. Their hardened condition protects the fixture
form the wear of repeated bushing replacement. These parts may be
ordered as unground when extra outside diameter stock is needed. |
HEAD
LINER BUSHINGS: Designated as type HL, is used when excessive axial
loads or pounding would dislodge the headless liner. Type HL may be used
with the head projected above the fixture or countersunk flush with the
top surface of the fixture. HL bushings are available with extra stock
on the outside diameter when necessary, and ordered as unground. Length
is measured overall including head. |
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UNILOCK
LINERS: Type UL is similar to the head liner with the additional
feature of a locking lip projecting up to replace the necessity of
drilling, tapping and use of a lock screw when using slip/fixed
bushings. |
UNILOCK
LINERS DIAMOND KNURLED O.D.: Designated as ULD. Their knurled
outside diameter for use in imbedment fixturing is their main function. |
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EZ CAST
LINERS: Designated type EZ-L, this type liner has the lock screw
positioned for slip fixed bushing use in fiberglass, laminated or
similar type fixturing. The EZ-L is positioned, then held in place with
epoxy or similar potting compound. |
SERRATA
PRES FIT BUSHINGS: Known as type SP. These bushings have half length
oversize serrations for extra holding capabilities in aluminum, masonite
or wood fixtures. |
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DIAMOND
GROOVE BUSHINGS: Designated as type DG, these bushings may be sued
in a cast or potting application or pressed into soft fixturing such as
laminates or acryliccs. Tyhis diamond knurled type holds better when
axial and rotational forces exist. |
SERRATA
GROOVE BUSHINGS: Designated as type SG, these bushings may be used
in a cast or potting application or pressed into soft fixturing such as
laminates or acrylics. |
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TEMPLATE
BUSHINGS: Type TB bushings are for light weight fixturing whose
thicknesses range from 1/16 to 3/8 inch thick. They have serrations to
add resistance to rotational forces and an aluminum ring to clamp it
firmly to the template. |
CHIP
BREAKER BUSHINGS: When drilling material producing long stringy
chips, the chip breaker feature is added to the exit end of the bushings
to assist in breaking up these chips. The bushing projects beyond the
fixture to allow the chips to be broken and not have to travel up the
drill flutes. Add CH after the ANSI code. Example: SF 88-22 CH 1" |
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DIRECTED
COOLANT BUSHINGS: Specially designed for heavy drilling needing
coolant to flush the chips away from the drill and work piece. These
slip type bushings with coolant hole liners ensure coolant flow directly
on the drill without the inconvenience of flexible lines. Add DC after
the ANSI code. Example: SF 48 -16 DC 1/2" |
DIRECTED
COOLANT LINERS: For use with directed coolant bushings. They are
available as headless or with heads, and should be ordered the same
length as the bushings to work properly. Add DC after the ANSI code.
Example: L-64-16 DC. |
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COMBINATION
CHIP BREAKER DIRECTED COOLANT BUSHINGS AND LINERS: These specialty
type bushings offer the best assistance in drilling difficult material
with the chip breaker extending beyond the liners to help break up the
chips and the positive coolant flow to wash away the chips and provide
lubricity to the drill making a very good combination frill guide. |
GUN
DRILL BUSHINGS: Used in gun drilling machines such as EL Dorado,
DeHoff and Drillmation. Some machines use an SF type with an insert.
Designated GDI for the inserts and GDL for the liner holding the insert.
Other types of one piece construction are GDB liner and insert as one
piece. DGDB deep hole gun drill bushigns have a long guide
projecting beyond the chip box. Type GDH is for the DeHoff machine with
the insert at the end opposite the head. |
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AIR FEED
DRILL BUSHINGS: Are available for such tools as Busckeye, Aro,
Gardner-Denver, Quackenbush, DeSoutter and Ingersoll-Rand. Threaded
collars, shanks or tips and locking devices for their use are available. |
OIL
GROOVE BUSHING: Oil groove bushings are available in any ANSI style.
They offer complete positive lubrication and they are available in 25
oil groove configurations plus wipers at the ends if needed. |