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SCXG-SVX01B-EN 95
Fan Bearings
The opposite drive end bearing is a
special bearing with close tolerance fit of
balls and races. Replace this bearing with
the same part number as the original
bearing. Follow the fan bearing
lubrication schedules in Tables M-MP-1
and M-MP-2. Use Table M-MP-3 to
reference compatible fan bearing grease
for specific bearings.
Table M-MP-1. Baldor Fan Bearing Lubrication Schedule
Baldor Rated Speed, rpm
Nema/ (IEC) Frame Size 3600 1800 1200 900
up to 210 incl. (132) 5500 hrs 12,000 hrs 18,000 hrs 22,000 hrs
over 210 to 280 incl. (180) 3600 hrs 9500 hrs 15,000 hrs 18,000 hrs
over 360 to 5800 incl. (300) 2200 hrs 3500 hrs 7400 hrs 10,500 hrs
Table M-MP-2. AO Smith Bearing Lubrication Schedule
Speed Frame Standard Service Severe Service Extreme
Service
Over 1800 rpm All 6 mths 3 mths 3 mths
1800 rpm 140-180 3 yrs 1 yr 6 mths
210-280 2 1/2 yrs 10 1/2 mths 5 1/2 mths
320-360 2 yrs 9 mths 4 1/2 mths
400-440 1 1/2 yrs 8 mths 4 mths
Note: Service standard - 8 hrs/day, normal to lgith loading, 100°F ambient temp. max.
Severe service - 24 hrs/day, shock loading, vibration, dirt or dust, 100 to 150°F ambient temp.
Extreme service - heavy shock or vibration, dirt or dust, 100 to 150°F ambient temp.
Table M-MP-3. Compatible Fan Bearing Grease
Motor Vendor Recommended Oil
AO Smith Exxon Polyrex EM
Chevron SRI 2
Dolium R Grease
Chevron Black Perl EP1
Baldor Exxon Polyrex EM
Texaco Polystar
Rykon Premium #2
Pennzoil Pen 2 Lube
Chevron SRI
Maintenance
maintenance
procedures