BA 5230 en 04/2011
Table 7:
Variant description Taconite seal
Taconite
type variant
Application
Remarks
"E"
All input shafts
with or without fan
Re-chargeable labyrinth
"F"
Output shaft
Type S
(Solid shaft)
"F‐F"
Output shaft
Type H
(Hollow shaft with parallel keyway)
Type K
(Hollow shaft with internal spline
to DIN 5480)
Labyrinth re-chargeable on both sides,
incl. dustproof cowl to prevent contact
on gear-unit side facing away from
output
"F‐H"
Output shaft
Type H
(Hollow shaft with parallel keyway)
Type K
(Hollow shaft with internal spline
to DIN 5480)
Labyrinth re-chargeable on output side;
dustproof cowl on opposite side
"F‐K"
Output shaft
Type D
(Hollow shaft for shrink disk)
For recharging the labyrinth seals with grease, the specified frequencies
(see table 15 in item 10.1) must be observed.
5.7
Cooling
Depending on requirements, the gear unit is fitted with a fan, a cooling coil or a separately provided addon
oilsupply system. In case of use of a separate oilsupply system, the specific instructions for this oilsupply
system must also be observed.
When installing the gear unit free convection must be ensured on the housing surface, in order
to definitely avoid overheating the gear unit.
5.7.1
Fan
As a rule the fan is fitted on the highspeed shaft of the gear unit and is protected from accidental contact
by an airguide cover. The fan sucks air through the grid of the airguide cover and blows it along the air
ducts on the side of the gearunit housing. It thereby dissipates a certain amount of heat from the housing.
A detailed view of the gear unit can be obtained from the drawings in the gearunit documentation.
For gear units fitted with a fan, sufficient space must be allowed for air intake when
fitting the safety guards for the coupling or other components.
The correct distance is given in the dimensioned drawing in the gearunit
documentation.
It must be ensured that the airguide cover is correctly fastened. The airguide cover
must be protected against damage from outside. The fan must not come into contact
with the airguide cover.
The cooling effect is considerably reduced if the fan or the housing surface are dirty
(see section 10, "Maintenance and repair").
