nord 6052902/0213, Manual With Installation Instructions

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Industrial gear units – Manual with installation instructions
42 B 1050 en-3921
There is also and additional seal to the atmosphere below the bottom bearing. This design is known
as Drywell. It enables detection of leaks before oil escapes outside of the gear unit. For leak
indication, there is an oil inspection glass on the flange.
The bottom bearing is grease-lubricated. It is sufficiently filled with grease as delivered, however, it
must be re-lubricated regularly (see chapter 5.1 "Inspection and maintenance intervals").
Legend
1: Grease nipple
2: Closing cap for grease escape
3: Oil inspection glass for leak
indication
Figure 18: Option VL3/KL3 and VL4/KL4
3.8.3 Agitator version with True Drywell (Option: VL4, KL4)
Compared to Options VL3 and KL3 (see 3.8.2 Agitator version with Drywell (Option: VL3, KL3), these
options are equipped with additional protection against leakage (see chapter 3.9 "True Drywell version
gear units (Option: VL4, KL4, VL6, KL6, DRY)"). The risk of leakage is reduced by means of an oil
level tube with an additional V-ring seal and several O-rings. In addition, reduction of the oil fill level
minimises losses due to splashing.
3.8.4 Extruder flange version (Option: VL5)
The extruder flange version combines customised flange and hollow shaft dimensions as well as radial
and axial tolerances with two or three different standardised axial floating roller bearings per gear unit
size.