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17
Motor
Manual
Frame size
Grease (g)
2-pole (h)
4-pole (h)
6-pole (h)
8-pole (h)
160
20
4200
7000
8500
8500
180
20
4200
7000
8500
8500
200
25
3100
6500
8500
8500
225
25
3100
6500
8500
8500
250
35
2000
6000
7000
7000
380
35
2000
6000
7000
7000
315
50
1500
5500
6500
6500
355
60
1000
4000
5000
6000
400
80
800
3000
4000
6000
Table 6 Re-greasing interval and amount of grease
7 .3 Permissible axial and radial bearing loads
This section provides information on radial and axial loads
for standard Hoyer IE3 motors . Values can vary . If specific
calculations are needed for other IE classes or environmen-
tal requirements, please contact Hoyer Motors . Specific per-
missible axial and radial loads on bearings can be provided
upon request by contacting Hoyer Motors .
The main conditions for axial and radial loads are listed be-
low . Permissible loads will vary under deviating conditions .
•
25°C ambient temperature (80°C bearing temperature)
•
WT grease for closed bearings
•
Pure axial or radial loads
•
Normal bearing cleanliness (only for shielded bearing
calculations (see L10h and grease lifetime, especially
for vertical mounting))
•
Vibration levels below limits stated in IEC 60034-14
•
No or insignificant bearing current
•
Wave spring forces are worst case (maximum possible
value)
Note the following:
Motors equipped with cylindrical roller bearings must only
be operated with a radial load on the motor shaft . Ensure
compliance with the minimum load and preload . Other
types of mounting may damage the bearings .
Motors equipped with angular contact bearings must only
be operated with a axial load on the motor shaft in the cor-
rect direction . The load must not change direction, as oth-
erwise the bearings may be damaged . Ensure compliance
with the minimum load and preload .
Permissible radial loads for deep groove ball bearings
X0
Permissible radial load at the start of the shaft extension
Xavg
Permissible radial load at the middle of the shaft extension
Xmax
Permissible radial load at the end of the shaft extension
Table 7 Load definitions
Содержание HMA2
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