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Installation, operation and maintenance instructions
High voltage flameproof motors for explosive atmosphere
AMD Rg 355-400-450-500
Rolling bearings maintenance and checking
Issued by: MOLM
Sheet No.
3AAM101040 E
Rev. B
01.2023
Page 7 of 11
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ithout
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en.
Table 7. Lubrication frequency, in hours, for operation at 50 Hz and horizontal assembly, for AMD motors with rib
cooling circuit, IIB/IIC, welded frame.
Size
N° of Poles
Grease (g)
2
4
6
8
10
12
2 poles
4-n poles
450…R…M
2000
6000
8800
8800
8800
8800
45
70
500…R…M
1500
5000
8800
8800
8800
8800
45
80
Table 8. Lubrication frequency, in hours, for operation at 60 Hz and horizontal assembly, for AMD motors with rib
cooling circuit, IIB/IIC, welded frame.
Size
N° of Poles
Grease (g)
2
4
6
8
10
12
2 poles
4-n poles
450…R…M
1300
4300
8800
8800
8800
8800
45
70
500…R…M
/
3500
8800
8800
8800
8800
/
80
Table 9. Lubrication frequency, in hours, for operation at 50 Hz and horizontal assembly, for AMD motors with
tubes cooling circuit, IIB/IIC, welded frame.
Size
N° of Poles
Grease (g)
2
4
6
8
10
12
2 poles
4-n poles
500..T
3000
6000
/
/
/
/
35
70
560..T
2500
5000
8800
8800
8800
8800
45
80
630..T
/
4000
8000
8800
8800
8800
/
90
710..T
/
1900
4000
6000
7000
8800
/
55 x 2
900..T
/
600
750
1550
1850
2350
/
100
14
16
18
6-n poles
900..T
2850
3250
3450
100
Table 9 A. Lubrication frequency, in hours, for operation at 60 Hz and horizontal assembly, for AMD motors with
tubes cooling circuit, IIB/IIC, welded frame.
Size
N° of Poles
Grease (g)
2
4
6
8
10
12
2 poles
4-n poles
500..T
2000
4000
/
/
/
/
35
70
560..T
/
3500
7000
8800
8800
8800
45
80
630..T
/
2500
6000
8800
8800
8800
/
90
710..T
/
1000
2500
4500
5000
6000
/
55 x 2
900..T
/
300
450
1000
1400
1800
/
100
14
16
18
6-n poles
900..T
2300
2500
3000
100