Operation
Operating_Manual_Fan_KXE_04_en.docx
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This chapter is only applicable for fans featuring oil-
lubricated single bearings.
No minimum speed must be observed for oil-lubricated
multiple bearing blocks and for grease-lubricated bearings.
NOTICE!
Oil bearings with oil supply ring require a minimum
speed to facilitate flawless oil supply within the
bearing housing. If the fan is operated with a variable
speed control, never allow the minimum speed to fall
below the value prescribed in Table 10-1.
Minimum speed is dependent upon respective size of the
bearing. The bearing size can be obtained from the following
sources:
- On the corresponding information plate on the fan
- On the fan data sheet
- In the spare parts list
Bearing size
Minimum speed [rpm]
..218
390
..220
350
..222
315
..224
290
..226
270
..228
250
..230
230
..232
220
..234
200
..236
195
..238
185
..240
175
..244
160
..248
145
..316
480
10.5 Minimum speeds
Table 10-1 Minimum speeds for oil-lubricated
single bearings
