Mitsubishi Electric CNC Specifications And Instruction Manual page 74

Direct Drive Motor Specifications and Instruction Manual
6 Assembly and Installation
(2) Installing a installation ring
Create a spigot-joint on machine side and fit the installation ring on the inner diameter of the spigot-joint to install
the installation ring. Ensure the accuracy for the dimension of machine side spigot-joint as shown below so as not to
degrade the detection accuracy.
Confirm the gap between the magnetic drum and the sensor head is secured by 0.29mm or more with clearance
gauge etc. after the installation.
CAUTION
1. Do not contact to the magnetic drum when installing the installation ring as it may result in damages of magnetic drum or
sensor head.
2. The sensor head is joined after adjusting the positional relationship with the installation ring beforehand, so do not
remove the sensor head fixing screw.
3. Create a spigot-joint as close to the machine side and fit the installation ring on the spigot-joint to install. Do not center
the core by striking on the installation ring outer diameter. etc.
4. Adherence of foreign materials to the element part of the sensor head (metallic thin film part) could lead to incorrect
detections. Remove with an air blow when foreign materials are adhered so as not to damage them.
Type
MBA405W-BE082
MBA405W-BF125
MBA405W-BG160
D
Installation ring
A
0.015
E
Spigot-joint
Spigot-joint
Installation ring
inner diameter
outer diameter
(φD)
0
φ140 φ140
-0.015
0
φ190 φ190
-0.015
0
φ242 φ242
-0.015
Shaft
A
Flange
0.02
Sensor head
F
Spigot-joint
height
(E)
+0.015
3.0 to 5.5
0
+0.015
3.0 to 7.5
0
+0.015
3.0 to 9.5
0
49
[Unit:mm]
A
[Unit:mm]
Height from installation ring
bottom surface to magnetic
drum bottom surface
(F)
9.5±0.2
11.5±0.2
13.5±0.2
IB-1501068-C