Toothed Components; Lubrication; Splash Lubrication; Shaft Bearings - Siemens FLENDER H SH Series Assembly And Operating Instructions Manual

5.4

Toothed components

The externally toothed components of the gear unit are case­hardened. The bevel­gear and and
helical­gear teeth are ground. The high quality of the teeth leads to a significant noise reduction and
ensures safe and reliable running.
The gears are connected with the shafts by interference fits and parallel keys or by shrink fits. 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.
5.6

Shaft bearings

All shafts are mounted in rolling bearings.
5.7

Shaft seals

Radial shaft­sealing rings or Taconite seals at the shaft outlets prevent oil from escaping from, or dirt from
entering into the gear unit.
5.7.1 Radial shaft­sealing rings
Radial shaft­sealing rings are the standard type of seal. They are fitted preferably with an additional dust
lip to protect the actual sealing lip from external contamination.
For special mounting positions the radial shaft­sealing ring is used with a grease filling
in combination with a ring.
Where large quantities of dust occur as specified by the requirements in
Directive 94/9/EC, use is provided only in combination with the Taconite seal (see
item 5.7.2).
Fig. 16: Radial shaft­sealing ring
BA 5030 en 02/2013
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