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BA 5030 en 02/2013
5.13 Bearingmonitoring system
The gear unit may be fitted with measuring nipples for monitoring the bearings. These nipples are intended
for attachment of shockpulse sensors with rapidaction coupling and are located in the vicinity of the
bearings to be monitored.
The gear unit may also be set up for temperature monitoring at the bearing points. The gear unit is then
equipped with tapped holes for fitting Pt 100 resistance thermometers. For this version Siemens must be
consulted.
Measuring nipple
XX
SW17
"X"
Fig. 29: Bearing monitoring on gear units type H...
Measuring nipple
X
X
SW17
"X"
X
Fig. 30: Bearing monitoring on gear units type B...
For a detailed illustration of the gear unit and the position of the addon parts, please refer to the drawings
of the gearunit documentation.
5.14 Auxiliary drive
For certain applications the gear unit can, in addition to the main drive unit, be equipped with an auxiliary
drive unit. This enables the main gear unit to be operated at a lower output speed in the same direction of
rotation. The auxiliary drive is connected with the main gear unit by an overrunning clutch. For the basic
drive arrangement please see Figure 31.
8
6 / 7
5
2
4
3
1
8
6
3
1
4
7
5
2
Fig. 31: Basic design of the gear unit with main and auxiliary drives
1 Main motor 4 Main gear unit 7 Overrunning clutch
2 Auxiliary motor 5 Auxiliary gear unit 8 Output shaft of the main gear unit
3 Coupling 6 Backstop
Depending on use, two auxiliary drives of different capacities are available for each gearunit size.