Mounting Dimension "X; Fan - Siemens SIMOTICS XP 1MB1 series Operating Instructions Manual

Explosion hazard due to overheating of the rolling bearings
If the rolling bearings are not regularly regreased, local overheating may be possible, and,
as a consequence, an explosion in an explosive atmosphere. This can result in death,
serious injury, or material damage.
• Regrease the rolling bearings regularly according to the lubrication plate.
• Implement bearing temperature monitoring if not yet in existence.
9.3.5

Mounting dimension "x"

Mounting dimension "x" of V rings
9.3.6

Fan

NOTICE
Destruction of the fan
Material damage can occur by forcefully removing the fan from the shaft.
Take care not to damage the snapping mechanisms on fans that are equipped with these.
Plastic fan
● Correctly expose the breakout openings provided in the fan plate.
● Heat up the fans to a temperature of approximately 50° C around the area of the hub.
1LA5/6/7/9, 1LG4/6, 1MA6/7, 1MB..1/2/3/4/5 - SH 63 ... 355
Operating Instructions, 06/2018, A5E44455710A
WARNING
Shaft height
71
80 ... 112
132 ... 160
180 ... 200 (1LA, 1MA)
180 ... 225
250 ... 355
9.3 Corrective maintenance
x
mm
4.5 ±0.6
6 ±0.8
7 ±1
11 ±1
13.5 ±1.2
Maintenance
Standard design
Special design
131