Mitsubishi Electric JR Series Instruction Manual page 29

[Supplement] Structure of outdoor type motor
The major parts of the outdoor type motors (IP44) are the same as those of the indoor type motors. Further,
special consideration is given to the following items to enhance the waterproofing effect.
(1) Shaft through hole ...... Provided with flinger, V-ring and end cover. The parts used for horizontal type
(2) Terminal box ............. For frame size of 63 to 180, steel plate boxes are used, and for frame size of
(3) Fitting surfaces ........... A sealing agent has been applied to the fitting surfaces of frame and bracket.
(4) Installation method ..... Use the motor in the posture shown in the outline drawing. Take care that the
(5) Painting ...................... Paints excelling in weather resistance, salt water resistance and chemical
Table 17 Standard parts of shaft through holes of outdoor type motors (horizontal type with legs)
Installation method/part
Anti-load side
Installation with
shaft horizontal
Anti-load side
Installation with
shaft end
downward
Anti-load side
Installation with
shaft end upward
(Note) 1. The structure of the shaft through hole on the load side of the flanged motor is basically same as that of the indoor type
motor.
2. The end cover is fitted after a sealing agent is applied.
3. It is recommended to replace rubber parts every 2 years.
Fig. 13 Parts used for shaft through hole of outdoor type motor
Flinger
Bearing
Flinger
motors with legs are shown in Table 17. When replacing the bearing, replace
the flingers and V-ring with new ones.
200 and above, steel or cast iron terminal boxes are used. Packing is provided
between terminal-box cover and its base. If the packing is deformed or cracked,
replace it with new one.
When reassembling, apply the agent in the same manner.
drain hole is not clogged.
resistance are used.
Frame No.
63, 71
V-ring
Flinger
Load side
End cover
V-ring
Flinger
Load side
End cover
V-ring
Load side Flinger
(The part names are shown. Refer to Table 17 above for explanations of the outdoor structure.)
V-ring
Bearing
80 to 132
Flinger
Flinger
End cover
V-ring
Flinger
End cover
Flinger
Water flinger
Bearing
V-ring
- 24 -
160 to 225
Flinger
Flinger
End cover
Water flinger
Flinger
End cover
Flinger
Water flinger
Water flinger
Water flinger