REXNORD - MARBETT - MCC
B77
Lubrication
Relubrication intervals vary according to actual operating conditions.
Very often during operation, load, speed, temperature and ambient conditions
(humidity, dust)
may vary making it difIcult to establish exact rules.
Experience once again gives the best answer:
Relubrication intervals
Prelubrication
All self-aligning bearing units are equipped with a grease nipple of the ball type to
allow periodical relubrication of the bearing.
Warning
• Do not grease at Irst assembly.
• The Irst lubrication must be carried out only for bearings of the series F² - F - FC
held by the shaft shoulders.
• Stainless steel pressed metal supports of the series SBF are not relubricatable.
• Use only grease of same characteristics as indicated.
• Clean greasing nipple before each greasing operation.
• Inject grease slowly until it comes out from the bearing.
Keep the bearing rotating and do not apply excessive pressure which could damage
the sealing units.
• More frequent greasing operations with smaller quantities of grease are to be
preferred.
Relubrication
All self-aligning bearings are supplied factory lubricated.
Warning
The Irst lubrication must be carried out only for bearings of the series F² - F - FC held
by the shaft shoulders.
Lubricating grease
Bearings are prelubricated with long lasting lithium/calcium grease.
• ²ight operating conditions:
• Normal operating conditions:
• Heavy operating conditions:
relubricate every 6 months.
relubricate every 1÷3 months.
relubricate every 2 weeks.
Technical data
N²G± consistency:
EmulsiIer:
Base oil:
Base oil viscosity:
Operating temperature:
Water resistance:
Antioxidant properties:
2
lithium/calcium
mineral
165 mm
2
/s at 40°C
- 20°C to +120°C
Recommended
Recommended