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Procedure
1.
Int his case, use only half the quantity of grease and then run the motor for a few minutes at full speed.
2.
When the motor has stopped, apply the rest of the specified amount of grease to the bearing.
3.
After 1–2 running hours, close the grease outlet plug or closing valve, if fitted.
1.7.2.2.2 Automatic lubrication
The grease outlet plug must be removed permanently with automatic lubrication or open the closing valve, if fitted.
ABB recommends only the use of electromechanical systems.
The amount of grease per lubrication interval stated in the table should be multiplied by three if a central lubrication
system is used.
When using a smaller automatic regrease unit (one or two cartridges per motor), the normal amount of grease can be
used.
When High speed motors are automatically regreased, the note concerning lubricant recommendations for High
speed motors in Chapter 1.7.2.4 Lubricants should be followed.
The grease should be suitable for automatic lubrication. The automatic lubrication system and the grease
manufacturer's recommendations should be checked.
Calculation example of the amount of grease for automatic lubrication system
Central lubrication system: Motor M3FT 250 at 1500RPM, re-lubrication interval according to Table 8 Lubrication
intervals and amounts is 5600 h/60 g (DE) and 7600 h/45 g (NDE):
•
(DE) RLI = 60 g/5600 h*3*24 = 0.77 g/day
•
(NDE) RLI = 45 g/7600 h*3*24 = 0.43 g/day
Calculation example of amount of grease for single automation lubrication unit (cartridge)
•
(DE) RLI = 60 g/5600 h*24 = 0.26 g/day
•
(NDE) RLI = 45 g/7600 h*24 = 0.14 g/day
RLI= Re-lubrication interval; DE = Drive end; NDE = Non drive end.
1.7.2.3 Lubrication intervals and amounts
The interval between regreasing significantly depends on what the motor is used for, the operating speed of the
motor, its duty cycle, the ambient temperature, and the load type.
In the following tables, suggested lubrication intervals are given for the bearing types used in HDP motors in
operating hours, assuming an ambient temperature of 25°C (bearing temperature approx. 70°C).
For duties with higher ambient temperatures, please contact ABB.
For special bearing types or operating conditions, the lubrication interval can be requested from ABB.
Lubrication intervals for vertical motors are half of the values shown in the table below.
Higher speed operations or lower speeds with a heavy load will require shorter lubrication intervals.
Table 8 Lubrication intervals and amounts
Shaft
Bearing type
height
h80 (*)
DE/NDE
6305
h100 (*)
DE/NDE
6308
h132 (*)
DE/NDE
6310
h160 (*)
DE/NDE
6312
h180 (*)
DE/NDE
6314
h200
DE
6315
NDE
6314
h225
DE
6319
Motor Speed [RPM]
500
1000
Amount
Lubrication intervals in duty hours per each motor speed [h]
of grease
(g)
6
N/A
N/A
11
N/A
15000
15
N/A
15000
21
N/A
15000
27
N/A
15000
30
N/A
14600
27
N/A
15400
45
N/A
11700
1500
1750
2000
11000
9600
8200
11000
9600
8200
11000
9600
8200
11000
9600
8200
11000
9600
8200
10300
N/A
7400
11000
N/A
8200
7600
N/A
4900
29
3000
4300
4300
4300
4300
4300
3700
4300
N/A
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