Toothed Components; Lubrication; Splash Lubrication; Pressure Lubrication Through Add­on Oil­supply System - Siemens FLENDER B3 E Series Assembly And Operating Instructions Manual

5.4

Toothed components

The externally toothed components of the gear unit are case­hardened. The helical gear teeth are ground;
depending on their size and transmission ratio, bevel­helical gear teeth are lapped, ground or
HPG­gear­cut. The high quality of the teeth leads to a significant noise reduction and ensures safe and
reliable running.
The gear wheels are joined to the shafts by interference fits and parallel keys. These types of joints transmit
with adequate reliability the torques generated.
5.5

Lubrication

5.5.1

Splash lubrication

Unless otherwise agreed in the order, the teeth and bearings are adequately splash­lubricated with oil. The
gear unit thus requires very little maintenance.
5.5.2 Pressure lubrication through add­on oil­supply system
In non­horizontal positions, with high bearing speeds or peripheral velocities on the teeth, the splash
lubrication system may be supported and/or replaced with a pressure­lubrication system.
The oil­supply system is permanently attached to the gear unit and consists of a flanged pump, a coarse
filter, a pressure­monitoring device and pipework. For gear units of sizes 13 to 28, the coarse filter is
replaced with a double change­over filter.
The direction of flow from the flanged pumps is independent of the direction of rotation.
1
Fig. 15: Add­on oil­supply system on gear units type B...
1 Flanged pump
2 Pressure monitor
A detailed view of the gear unit can be obtained from the drawings in the gear­unit documentation.
The following configurations other than described in item 5.5.2 are possible:
Add­on oil­supply system (fixed to the gear unit, see item 5.10.3).
External oil­supply system (fitted separately, see item 5.10.5).
In the case of gear units with oil­supply system, before starting the unit up all monitors
must be connected so as to be ready for operation.
3 2
B... 12
BA 5033 EN 03/2011
27 / 96
4
1
B...
3 Coarse filter
4 Double change­over filter
2
13