Draw.
Title
I. Na
atomo 05.01.07 01
PAGE
6/17
FANUC LTD.
B-65282EN/05-08
Descri
tionDesi
n Date Edit
Changes and an addition
I. Na
atomo 05.06.21 02
bsolute αiCZ Sensor
5. Mounting method of Absolute αiCZ Sensor
5.1 Mounting the detection ring
Prepare flange on the spindle shaft and fix the detection ring with screws to the spindle axis direction using the through
holes on the detection ring. Adjust the detection ring so that the radial run out of the alignment track is within 0.01mm.
Drawing No. Outer diameter
of the alignment
track(
φB)
Size of through hole Size
of
screw
Recommended
torque to tighten
screw
(Nm)
A860-2142-T411 φ101 6-φ5.5 through hole, P.C.D=φ92 M5 2.4~3.4
A860-2142-T411 φ152.2 6-φ5.5 through hole, P.C.D=φ140 M5 2.4~3.4
A860-2142-T611 φ203.4 6-φ6.6through hole, P.C.D=φ183 M6 4.1~5.8
NOTE
・It is recommended that the outer diameter of the flange is smaller by 0.1mm or more than the inner diameter of the
detection ring for smooth adjustment.
・The detection ring should be fixed to the shaft with the screws(Don’t fix it with shrink fitting).
・The detection ring consists of the Z ring and the AB ring. Do not remove the screw to fasten these rings together. The
spindle should be so designed that it would not be interfered with the screw head because through hole is not counter
bored.
・When adjusting the detection ring, measure the run out by using the alignment track and do not use the outer diameter of
the Z ring for that aim. Be careful not to damage the tooth of a gear in adjusting.
・The magnetic dust which is stuck to the teeth of the detection ring may cause the incorrect detection. Perform an air blow
after alignment.
shaft
lignment track
Through hole for attachment
φB
Flange
0.01
Scre
0.01
(Mounting plane of the detection ring)