Number SeriesRecommended for use only when
one end of the guided bar is rigidly supported in a spindle. Number Series bushings are
rigid, friction free rotary guide or support bushings which incorporate a heavy duty,
double row ball bearing. Number Series bushings are recommended when precision finish part
tolerances are not required, in applications such as drilling. |
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| GTR and GTRS Series These rotary bushings are recommended for use with a bar rigidly
mounted in a spindle or with a floating bar. GTR and GTRS bushings incorporate a pair of
tapered roller bearings which are capable of taking high radial, thrust and shock loads.
They are commonly used in operations where interrupted cuts and heavy loads are
encountered such as gang milling. |
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| GN and N Series Are recommended for use when one end of the bar is mounted rigidly
in a spindle. GN bushings are commonly used in applications where space is limited. Their
needle bearing construction allows for closer centerline distances between spindles. N
series bushings are identical in construction to the GN series except peripheral
dimension. |
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| GB Series These bushings are for use with bars mounted rigidly in a spindle.
GB bushings incorporate ball and retainer bearing construction. Because the balls are
pre-loaded, running clearances are removed and more precise bushing runout is realized. GB
series bushings are commonly used for precision line boring when the close centerline
distance of the part will not accept the G series. |
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| G Series For use with a bar rigidly mounted in a spindle or with a floating
bar. G series bushings feature a spaced pair of single row ball bearings for maximum
stability needed with longer bar travel. G series bushings are recommended where finished
part tolerance is critical in operations such as precision line boring. These bushings can
be provided with tighter size and runout tolerances than standard. |
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| GNT Series Are used when the bar is mounted rigidly in a spindle. GNT bushings
are commonly used in operations where space is limited. Their unique construction allows a
larger I.D. for a given O.D.. Because they incorporate needle bearings, they are capable
of withstanding high radial loads but only nominal thrust loads. They are commonly used in
multiple spindle operations where centerline distances between spindles is limited. |
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| Recessing Bushings These bushings were developed to be used in conjunction with
recessing holders. They provide high thrust capabilities required to activate recessing
tools. Their unique design incorporates needle bearings for maximum radial load capacity
as well as a thrust bearing for thrust loading. Recessing bushings can be used in any
operation where high thrust and radial loads are encountered. |
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| Special
Designs And Features Standard Gatco Rotary
Bushings are commonly modified for particular applications. If a standard or modified
standard will not meet your requirements contact Gatco for a search of over 3000 special
designs.
Gatco offers a special
design service for rotary bushings. Your special design requirements will be
taken from design concept through final manufacture. Our engineering department can make
recommendations which will make your machine run at maximum optimization. Because of our
CAD capability, if we are furnished with size and performance requirements, a special
design can usually be prepared for customer's approval within hours. When requesting a
special design, please provide prints and all pertinent information regarding the
operation. Availability for specials and standards is the same; pricing covers the
additional features ordered.
Contact GATCO or use our form to fill in and send your requirements for an immediate design and
quotation.
Listed below are features commonly requested to be
incorporated into rotary bushings:
Straight Flats
Special Tolerances
Radius Flats
Drill & C-sink Holes
Special I.D.
O.D. Grinding
Special O.D.
Counter Clockwise Rotation
Leads |
Hardened O.D.
Tapped Holes
Key
Face Grinds
Timing Leads
Keyway
Etch
Slots |
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