nord 6051302, Руководство по эксплуатации и сборке

Страница: 23 / 72

Table of Contents
B 1091 en-2722 23
Pos: 51 /Anl eitungen/M otoren/B1091 Drehstromm otoren/2. Instandhaltung, Wartung/Lagerw echselfristen @ 78\mod_1629902030594_388.docx @ 2817445 @ 2 @ 1
2.2 Bearing replacement periods
Under normal operating conditions, with horizontal motor installation, the bearing replacement period in
operating hours [h] for IEC motors is the following depending on the listed coolant temperature and
motor speeds:
25°C 40°C 60°C
to 1.800 rpm approx. 40,000 h approx. 20,000 h approx. 8,000 h
to 3,600 rpm approx. 20,000 h approx. 10,000 h approx. 4,000 h
In case of direct mounting of the gear units or special operating conditions, for example vertical motor
installation, high vibration and impact loads, frequent reversing operation, etc., the above-mentioned
operating hours can be significantly reduced. The ball bearings are lifelong lubricated.
Pos: 52 /Allgem ein/Allgem eing ültige M odul e/---------- Seitenum bruch ---------- @ 1\m od_1329145698658_0.docx @ 15891 @ @ 1