Table 2.1
IDEAL GEOMETRY A symmetrica geometry wi give you even speed and torque throughout the entire
movement of the gate as we as equa y strong everage to ho d the gate in position at both open and c ose ends
of strokes. If you are we ding the post bracket, when possib e, use the geometry in tab e 1:
Table 1
USING THE ARB BRACKETS The ARB adjustab e brackets simp ify the insta ation process.
The tab es 2.1 and 2.2 gives you different options depending on the three most common gate
hinge offsets. These dimensions on y app y to insta ations where the fu y c osed gate is square
with the gate post. DO NOT DEVIATE FROM THE DIMENSIONS ON THE TABLES
Gate hinge
Gate frame
Gate
post
Hinge offset
Gate hinge offset – The gate
hinge offset is the distance
from the center of the gate
hinge to the inside edge of the
gate post
ARB
Table 2.2
A B C ARB
1 1/2” 5 1/8” 6 3/4” 27 1/2” 5 1/4”
2” 5 1/8” 6 5/8” 27 1/2” 4 5/8”
3” 4” 7 5/8” 27 1/2” 4 5/8”
HINGE
OFFSET
A B C ARB
1 1/2” 7 3/8” 7 3/8” 32 1/2” 5 7/8”
2” 7 1/2” 7 7/8” 32 1/2” 5 7/8”
3” 7 1/2” 7 7/8” 32 1/2” 4 7/8”
HINGE
OFFSET
PHOBOS N BT
ARB GEOMETRY
PHOBOS NL BT
ARB GEOMETRY
DETERMINING THE BEST GEOMETRY 5
A B C
PHOBOS N BT
PHOBOS N BT 5 7/8” 5 7/8” 27 1/2”
PHOBOS NL BT
PHOBOS NL BT 7 1/2” 7 1/2” 32 1/2”
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