Siemens SINAMICS S 1PH7 - Recommended Bearing Change Intervals (Standard Bearing Design)

Mechanical properties of the motors
3.3 Bearing version
1PH7 induction motors (Machine tools)
56 Configuration Manual, (APH7W), 04/2009, 6SN1197-0AD72-0BP0
Table 3- 7 Recommended bearing change intervals (standard bearing design)
Recommended bearing change interval
t
Lw
[h]
Shaft
height
Drive output type Average
operating speed
n
m
[rpm]
Stat. bearing
lifetime
L
10h
[h]
Permanent
lubrication
Regreasing
100
Coupling output or
belt coupling
≤ 3000
≤ 2500
132
Coupling output or
belt coupling
≤ 2500
≤ 2000
160
Coupling output or
belt coupling
≤ 2000
≤ 1500
20000 20000 -
Coupling output ≤ 2000 40000 20000 40000
Belt coupling 24000 24000
180
Increase radial forces
≤ 1500
20000
12000
20000
Coupling output ≤ 1750 40000
1)
20000 40000
1)
Belt coupling 24000 24000
225
Increase radial forces
≤ 1400
20000
12000
20000
1)
When vertically mounted 25000 [h]
Table 3- 8 Recommended bearing change intervals for increased speeds (standard bearing design)
Shaft height Average operating speed
1)
n
m
[rpm]
Recommended bearing change
interval t
LW
[h]
Max. continuous speed in
S1 operation n
s1
[rpm]
100 2500 < n
m
< 6000 5500
132 2000 < n
m
< 5500 4500
160 1500 < n
m
< 4500 3700
180 1500 < n
m
< 4000 3500
2)
225 1400 < n
m
< 3500
8000
3100
3)
1)
This assumes a speed duty cycle, also with low speeds and zero speeds
2)
For increased radial force ≤ 3000 [rpm]
3)
For increased radial force ≤ 2700 [rpm]
Table 3- 9 Recommended bearing change intervals for bearing versions with increased maximum speed
Shaft height Average operating speed
1)
n
m
[rpm]
Recommended bearing change
interval t
LW
[h]
Max. continuous speed in
S1 operation n
s1
[rpm]
100 8000 ≤ n
m
< 12000 10000
132 6000 ≤ n
m
< 10000 8500
160 5000 ≤ n
m
< 8000 7000
180 1500 ≤ n
m
< 7000 4500
2)
225 1500 ≤ n
m
< 5500
8000
3600
2)
1)
This assumes some speed fluctuation, also with low speeds and zero speeds
2)
Only possible for coupling output