Greenlee / A Textron Company 22 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
881 and 881CT Cam Track
®
Hydraulic Benders
Glossary of Bending Terms with Illustrations
1. amount of offset—the distance
that the conduit or pipe must be
re-routed to avoid an obstruction;
see offset in this glossary and
Offsets in Laying Out Bends in this
manual
2. back-to-back bend—any U-shaped
bend formed by two parallel
90-degree bends with a straight
section of conduit or pipe between
the bends
3. center-to-center distance—the
distance between the successive
bends that make up an offset or a
three-bend saddle
4. depth of offset—same as amount of
offset
5. height of offset—same as amount
of offset
6. leg length—the distance from the
end of a horizontal section of conduit
or pipe to the bend; measured from
the end to the center line, inside
edge, or outside edge of the conduit
or pipe.
7. 90˚ bend—any bend that changes
the direction of the conduit or pipe by
90 degrees
8. O. D.—the size of any piece of
conduit or pipe as measured by its
outside diameter
9. offset bend—two bends with the
same degree of bend; used to avoid
an obstruction blocking the run of the
conduit or pipe
10. ram travel—the distance that the
ram of a hydraulic bender moves to
accomplish a particular bend; inches
of ram travel are proportionate to
degrees of bend
11. rise—the distance from the end of a
vertical section of conduit or pipe to
the bend; measured from the end to
the center line, inside edge, or
outside edge of the conduit or pipe
12. shot—a single bend
13. springback—the amount,
measured in degrees, that a
conduit or pipe tends to straighten
after being bent
14. stub—same as rise
15. stub-up—same as rise
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