Greenlee Textron / Subsidiary of Textron Inc.
17
4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
555BAT™ Battery-Powered Bender
Illustrated Bending Glossary
1. 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
2. center-to-center distance —
the distance between the
successive bends that make
up an offset or a three-bend
saddle
3. developed length — the actual
length of pipe that will be bent;
see distance “d” in the
illustration at left
4. gain — the difference between
the straight-line distance (a + a)
and the shorter radial distance,
(d) where:
θ = angle of bend
r = the centerline bending
radius of the bending shoe
5. kick — single bend of less
than 90°
6. leg length — the distance from
the end of a straight section of
conduit or pipe to the bend;
measured from the end to the
outside edge of the conduit
or pipe.
7. offset bend — two opposite
bends with the same degree
of bend; used to avoid an
obstruction
8. offset height — the distance
between the two legs of
an offset bend, measured
perpendicular to the two legs;
also called amount of offset
and depth of offset
9. rise — the distance from the
end of a straight section of
conduit or pipe to the bend;
measured from the end to
the center line of the conduit
or pipe. Also called stub or
stub-up.
10. saddle — a three-bend or
four-bend combination; used
to avoid an obstruction
11. shrink — the amount of conduit
“lost” when laying out an offset
bend working toward an
obstruction; see the explanation
under Offset Bending in
this manual
12. springback — the amount,
measured in degrees, that a
conduit or pipe tends to
straighten after being bent
a
a
d
r
θ
Offset Height
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