Motors from size 180 provided with the bearings lubrication unit are to be lubricated while
running according to the lubricating intervals and the grease quantity as per table 2.
On non-standard roller "NU" bearings and Angular contact ball bearings "7.."
, the lubrication intervals timing is half.
Lubrication intervals timing is half also for motors supplied by inverter, because of the grease
vetrification caused by the currents arc between stator and rotor. For this reason, insulated
bearings (special execution) are recommended on such motors, especially
when their power is 110kW or higher
Use lithium o polyurea grease with mineral oil basis suitable for a max working temp. of at
least 190°C. By the way, we recommend Mobil Polyrex EM or Mobil Mobilith SHC for the max
durability
Tab. 2
motore Quantità grasso (g) Intervalli di lubrificazione in ore operative
motor Grease quantity (g) Lubrication intervals in operation hours
grandezza 2 poli 4-6-8 poli 2 Poli 4 Poli 6 Poli 8 Poli
size 2 poles 4-6-8 poles
2 Poles 4 Poles 6 Poles 8 Poles
180-200* 25 3800 9300 12400 15200
225* 25 3800 8900 12200 14800
250* 30 3100 4100 5900 6900
280* 28 36 800 3900 5600 6700
315 36 45 800 2300 4100 5100
355 45 60 700 2000 4000 4500
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General