NORD Drivesystems B2050 - Manual (Page 16)

3. Assembly instruction,
storage, transport, preparation, installation
-16- B2050-GB-0613 www.nord.com
 Enable
the free flow of air to all sides of the gear unit.
 Ensure adequate space around the gear unit.
 With geared motors, the cooling air of the motor fan must be able to flow unobstructed
onto the gear unit.
 Do not enclose or encase the gear unit/geared motor.
 Do not subject the gear unit to highly energetic radiation.
 Do not direct warm exhaust air from other units onto the gear unit/geared motor.
 The base or flange to which the gear unit is attached must not input any heat into the
gear unit during operation.
 Do not pile up dust in the area of the gear unit
3.9 Fitting hubs on the gear shafts
Figure 3-6: Example of a simple pulling device
Danger!
 The cooling air supplied to the gear unit/geared motor must be within the
permissible temperature range stated on the name plate.
 In case of direct sunlight falling onto the gear unit, the cooling air supplied to the
gear unit/geared motor must be at least 10°C below the highest permissible
temperature of the ambient temperature range Tu, which is stated on the name
plate.
Attention!
Drive and driven elements, e.g. coupling and chain-wheel hubs must be mounted onto
the drive and driven shaft of the gear unit using suitable pullers that will not apply
damaging axial forces onto the gear unit. In particular, do not hit the hubs with a
hammer.
Note
Use the end thread of the shafts for pulling. Fitting can be aided by coating the hub
with lubricant or heating it up to approx. 100
o
C beforehand.
Danger!
Drive and driven elements, such as belt drives, chain drives and couplings must be
fitted with contact protection.