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zioni ambientali normali, senza vibrazioni anomale, senza carichi assiali<br />
o radiali oltre quelli indicati nelle tabelle successive e con temperature di<br />
funzionamento dei cuscinetti comprese tra -30°C e +85°C.<br />
La durata così calcolata viene defi nita durata di base (L<strong>10</strong>h) espressa in<br />
ore di funzionamento.<br />
Si ricorda che le durate dei cuscinetti sono calcolati su coeffi cienti di carico<br />
dinamico forniti dai costruttori dei cuscinetti. Tali carichi sono basati<br />
sulla durata che si prevede che possa venir raggiunta o superata dal 90%<br />
dei cuscinetti di una campionatura suffi cientemente grande, costituita da<br />
unità apparentemente tutte uguali.<br />
Il 50% dei cuscinetti può raggiungere una durata 5 volte superiore a qella<br />
indicata dal calcolo.<br />
Il <strong>10</strong>% dei cuscinetti, tuttavia, può non raggiungere la durata di vita calcolata.<br />
Nella tabella seguente sono indicati i massimi carichi assiali ammessi per<br />
una durata di base (L<strong>10</strong>h), calcolata secondo quanto previsto dalle Norme<br />
ISO, pari a 20.000 ore di funzionamento.<br />
Carichi assiali ammessi<br />
Forma IM-B3 IM-B35 (alimentazione 50 Hz)<br />
ent conditions, without abnormal vibrations, without axial or radial loads<br />
beyond the ones mentioned in the following tables and with operating<br />
temperatures of the bearings ranging between -30 and +85 C°.<br />
Life calculated in this way is called basic life (L<strong>10</strong>h) expressed in hours<br />
of operation.<br />
It should be noted that the life of the bearings is calculated using basic<br />
dynamic load coeffi cients supplied by the manufacturers of the bearings.<br />
These loads are based on the duration that is expected to be reached or<br />
exceeded by 90% of the bearings of a sufficiently large sample, consisting<br />
of units apparently all the same.<br />
50% of bearings can reach a life 5 times greater the one indicated by<br />
calculation.<br />
<strong>10</strong>% of bearings, however, can not reach the lifespan calculated.<br />
Next table shows the maximum permitted axial loads for a basic life<br />
(L<strong>10</strong>h), calculated according to the provisions of the ISO Standards,<br />
equal to 20.000 hours of operation.<br />
Permissible axial loads<br />
Mounting IM-B3 IM-B35 (50 Hz)<br />
Grandezza<br />
Frame size<br />
2<br />
Poli - Poles<br />
20.000<br />
ore - hours<br />
Forza assiale (N) - Axial force (N)<br />
4<br />
Poli - Poles<br />
20.000<br />
ore - hours<br />
6<br />
Poli - Poles<br />
20.000<br />
ore - hours<br />
8<br />
Poli - Poles<br />
20.000<br />
ore - hours<br />
63 <strong>FE</strong>CCL/<strong>FE</strong>CC 180 200 - -<br />
71 <strong>FE</strong>CCL/<strong>FE</strong>CC/<strong>FE</strong> 200 250 300 350<br />
80 <strong>FE</strong>CCL/<strong>FE</strong>CC/<strong>FE</strong> 250 300 350 400<br />
90S <strong>FE</strong>CCL/<strong>FE</strong>CC/<strong>FE</strong> 270 350 4<strong>10</strong> 420<br />
90L <strong>FE</strong>CCL/<strong>FE</strong>CC/<strong>FE</strong> 260 340 400 420<br />
<strong>10</strong>0L <strong>FE</strong>CCL/<strong>FE</strong>CC/<strong>FE</strong> 550 720 800 920<br />
112MT <strong>FE</strong>CCL/<strong>FE</strong>CC/<strong>FE</strong> 550 720 800 920<br />
132S <strong>FE</strong>CCL/<strong>FE</strong>CC/<strong>FE</strong> 800 950 1150 1250<br />
132M <strong>FE</strong>CCL/<strong>FE</strong>CC/<strong>FE</strong> 780 900 1120 1200<br />
160MT <strong>FE</strong>CCL/<strong>FE</strong>CC/<strong>FE</strong> <strong>10</strong>00 1<strong>10</strong>0 1300 1400<br />
160M <strong>FE</strong>CCL/<strong>FE</strong>CC/<strong>FE</strong> 1<strong>10</strong>0 1400 1500 1750<br />
160L <strong>FE</strong>CCL/<strong>FE</strong>CC/<strong>FE</strong> <strong>10</strong>00 1300 1400 1600<br />
180MT <strong>FE</strong>CCL/<strong>FE</strong> 1150 1400 - -<br />
180LT <strong>FE</strong>CCL/<strong>FE</strong> <strong>10</strong>50 1300 1350 1600<br />
200LT <strong>FE</strong>CCL/<strong>FE</strong> 1300 1600 1800 2200<br />
225ST <strong>FE</strong>CCL/<strong>FE</strong> - 1900 - 2450<br />
225MT <strong>FE</strong>CCL/<strong>FE</strong> 1300 1800 2<strong>10</strong>0 2400<br />
250MT <strong>FE</strong>CCL/<strong>FE</strong> 1600 2000 2200 2500<br />
280ST <strong>FE</strong>CCL/<strong>FE</strong> 1650 2300 2900 3000<br />
280MT <strong>FE</strong>CCL/<strong>FE</strong> 1500 2<strong>10</strong>0 2700 2850<br />
315ST <strong>FE</strong>CCL<br />
Chiedere / Please ask<br />
315Ma <strong>FE</strong>CCL<br />
Chiedere / Please ask<br />
315Mb <strong>FE</strong>CCL<br />
Chiedere / Please ask<br />
315Mc <strong>FE</strong>CCL<br />
Chiedere / Please ask<br />
315Md <strong>FE</strong>CCL<br />
Chiedere / Please ask<br />
Per forme costruttive diverse o per carichi combinati (assiali e radiali) consultare<br />
ELECTRO ADDA.<br />
Electro Adda S.p.A. CT - <strong>FE</strong>-<strong>FE</strong>CCL-<strong>FE</strong>CC - Rev. 3 <strong>10</strong>-<strong>2017</strong>-<strong>IE</strong><br />
Please ask ELECTRO ADDA for other mounting arrangements or simultaneous radial and<br />
axial forces.<br />
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