12.4.3 Re-lubrication of the hybrid bearings
The average continuous speed determines the service life or the interval
length until the required re-lubrication. However, the number of re-lubrications
is limited due to the size of the grease collecting chambers on the bearings.
A lubrication nipple is located on both sides of the energy storage device for
re-lubrication of the bearings (see Fig. 12-1). In order to ensure that no con‐
tamination penetrates into the contact zones of the bearing, the lubrication
nipples must be cleaned before each use at all costs.
● The amount of lubricating grease per re-lubrication must be
between 22 and 25 g.
Before re-lubrication, determine with which stroke rate the
used grease gun reaches the permitted grease quantity in
order not to exceed this quantity.
● The grease must be pumped in slowly and carefully during
operation at a low speed of ≤ 100 rpm so that the bearing is
not overheated due to re-lubrication.
● Re-lubrication of the bearings must only be carried out 4
times.
● If the end of the available operating hours (see Re-lubrica‐
tion instruction sign) of the last re-lubrication interval has
been reached, no further re-lubrication may be carried out.
In this case, remanufacturing must be carried out by Bosch
Rexroth.
① Lubrication nipples
Fig. 12-1: Lubrication nipples using the example of a BA1N energy storage de‐
vice in force-ventilated version
Further data on re-lubrication, e.g. the permitted grease, can be found on a
re-lubrication instruction sign next to the lubrication nipples on the energy
storage device.
60/73
Operation of BA1N energy storage device
BA1N Kinetic Energy Buffer
Bosch Rexroth AG R911393264_Edition 01
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