Leroy-Somer CPLS 112, Руководство по установке и обслуживанию

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15
INSTALLATION AND MAINTENANCE
CPLS drip-proof 3-phase induction motors
4240 en - 2014.09 / b
LEROY-SOMER
Permanently greased bearings
As standard, motors with frame size ≤ 200 mm.
The life of a grease depends on:
- its characteristics (soap, base oil, etc)
- operating conditions (speed of rotation, operating
temperature)
- contamination
The configuration and size of these bearings ensure a long
grease life and therefore greasing lasts the lifetime of the
machines.
The curves opposite show the grease life as a function of the
motor speed of rotation and the ambient temperature.
10
0
20
30
40
50
60
T amb (
°
C)
30 10 20 5 15
N = 750 min
-1
N = 1500 min
-1
N = 1000 min
-1
25
N = 3000 min
-1
Life L10h in 000’s of hours
Bearings with grease nipples
Greasing intervals – Ball bearings*:
*For roller bearings, halve these values.
Regreasing intervals
Speed of rotation less than or equal to
intervals
(hours)