BOMBAS IDEAL RNI Series Use And Maintenance Instructions page 28

Bombas Ideal, S.A.
5. For externally cooled stuffing box should be checked that the cooling liquid is doing its job. Bear in
mind that the difference between input and output temperatures should range between 10/15º C.
10.1. Lubrication
RN, RNI and RNE pumps can be supplied with lubrication by grease or by oil in accordance with the following
classification depending on the support type. To identify which type of support is fitted on each pump see the
INTERCHANGEABLILITY TABLE.
RN with N-250 and N-300 support. Supplied with sealed bearings, greased for life, so no check is
required as regards lubrication.
RN with N-400 and N-500 supports. Supplied with grease-lubricated bearings. These can be supplied
with oil lubrication under request.
RN with N-550, N-600 and N-800 supports. Supplied with oil-lubricated bearings.
TAKE NOTE
RNI with N-25A, N-25B, N-35, N-35G, N-45, N-45DA, 55, 60 and 75 supports. Supplied with grease-
ubricated bearings.
RNI with N25h, N35h y N-35H supports. Supplied with oil-lubricated bearings.
TAKE CARE
GREASE LUBRICATION
The pumps with grease-lubricated bearings are supplied pre-greased from the factory. Nevertheless, when
these have been stored for long periods they should be slightly greased.
Below there is a table showing the regularity for greasing the different types of support.
TAKE NOTE
The RN pumps supplied with bearings lubricated by oil have an oil stick with a mark
indicating the filling level.
The RNI and RNE pumps supplied with oil-lubricated bearings have a oil glass in the
bearing support which should be covered with the oil up to half way up.
TYPE OF SUPPORT
N-25A / N-25B
N-35 / N-35G
N-45 / N-45DA
N-400
N-500 / 55 / 60 / 75
Use a good quality lithium-based bearing grease, with no acid or resin, anti-oxidant and
which does not form lumps.
Nº OF HOURS Nº OF HOURS
1500/1800 RPM 3000/3600 RPM
1.400
1.000
800
800
600
28
800
600
500
500
400