Operating instructions B-Series
Version 2.4, En Page 68 of 81 21-10-2005
11.10.5 Rolling bearings
The B40, B30-180, B45, B50, B55, B60-180, B60-220, B65, B70, B70-250, B85, B95, B100, B125, B140
and B156 have grease-packed rolling bearings as standard for their working life of the seal type 2RS.
These do not need further lubrication.
With pump sizes B150, B200, B250 and B300 the rolling bearings are provided with a multi-propose
lubricating grease of consistency class NLGI-2. This type of lubricating grease is suitable for rolling
bearing temperatures to 120ºC.
For higher operating temperatures the standard lubricating grease must be replaced by a high temperature
grease, consistency class NLGI-3. This type of lubricating grease is suitable to 150°C to 180°C depending
on the grease manufacturer. Before starting the pump check if there is sufficient lubricant in the bearing
support, and if there are any lubricant leaks.
Extra point(s) for attention with ATEX pumps.
K12.
M7.
B5.
Choose the correct bearing (according to EN 13463-5:2003, 6.1).
Assemble the pump parts according to instructions.
Protect pump bearing support against temperature.
• (Only with Cat. 2 pumps)
Dangers relating to
the software
:
It is the responsibility of the employer to ensure that the safety
measures (such as protection against temperature) and the
resulting action (such as the stoppage of the pump) are
appropriately included in the safety circuit.
Optional:
An oil-lubricated bearing can optionally be selected. When the pump is used in an environment where
very high or low temperatures apply, it is recommended to consult the lubricating grease producer on the
correct lubricating grease/lubricating oil and intervals for further greasing/lubrication.
11.10.6 Further lubrication
With pump sizes B150, B200, B250 and B300, every 5,000 running hours or every six months apply a
small quantity of grease through the lubrication nipple at the bearing cover.
Extra point(s) for attention with ATEX pumps.
S2.
B5.
Only with grease-lubricated bearings not greased for life:
• Ensure a good lubrication schedule.
If regular lubricated cannot take place:
• Fit a temperature sensor at the bearing.
Oil-lubricated rolling bearings are lubricated from the bearing support, so this must contain sufficient oil.
The oil level must always be checked before first putting into operation using the oil-level gauge. First oil
replenishment after 250 hours. Then with normal use after approx. 4,000 operating hours or every six
months.
Do not apply too much lubricating grease in the bearing.
After four lubrications the rolling bearing must be cleaned. The old grease must be removed and new
lubricating grease provided
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