
Draw.
Title
I. Na
atomo 05.01.07 01
PAGE
7/17
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
5.2 Mounting the sensor mounting ring
The spindle should be so designed that it will construct the clearance fit between the outer diameter of the sensor
mounting ring and the fitting part of the spindle as shown in the diagram below (The excessive error in the diameter of
the fitting part may cause the detection error). As shown in the figure below, push the sensor mounting ring from CN1
sensor side so that it will contact with the fitting part closely. Check that the gap between the detection ring and the
sensor element is 0.08mm or more by using the feeler gauge.
Drawing No. Outer diameter of the
sensor mounting ring
Inner diameter of the
fitting(φC)
Height of fitting(D) Length between the
bottom surface of the
Sensor Mounting ring and
the bottom surface of the
detection ring (E)
A860-2142-T411 φ140 φ140 5.5 or less 11.5+/-0.2
A860-2142-T511 φ190 φ190 7.5 or less 13.5+/-0.2
A860-2142-T611 φ242 φ242 7.5 or less 13.5+/-0.2
NOTE
・It is recommended to locate the sensor mounting ring mechanically as indicated above. It is not advisable to adjust it by
measuring the run out of the outer diameter of the sensor mounting ring.
Shaft
A
Sensor
element
Fitting part
Sensor mounting ring
0.02
A
φC
A
0.015
D
+0
-0.015
φE
CN2 Sensor
CN1 Sensor
Push the sensor mounting ring as
indicated by an arrow
+0.015
-0
+0
-0.015
+0.015
-0
+0.015
-0
+0
-0.015