NORD Drivesystems B2000 - Manual (Page 18)

3. Storage, preparation,
installation
-18- B2000-GB-0413 www.nord.com
Drive and driven elements may only subject the drive units to the maximum radial forces
F
R1
and F
R
and axial forces F
A1
and F
A
as specified on the rating plate (See Section 3.4).
Observe the correct tension, particularly on belts and chains. Additional loads due to unbalanced
hubs are not permitted.
Free drive shaft (Option W) Driven shaft
Figure 3-4: Permissible application of force to drive and driven shafts
3.9 Fitting push-on gear units
Danger!
Drive and driven elements, such as belt drives, chain drives and couplings must be
fitted with contact protection.
Danger!
Care must be taken that drive and driven elements attached to the gear unit must also
be ATEX-compliant.
Danger!
The radial force must be applied to the gear unit as closely as possible. For drive
shafts with free shaft ends – Option W – the maximum permissible transverse force
FR1 applies for the application of the transverse force to the centre of the free shaft
journal. For driven shafts, the application of the transverse force FR2 must not exceed
the dimension xR2 . If the transverse force FR2 for the driven shaft is stated on the
rating plate, but no dimension xR2 is stated, the application of the force is assumed to
be to the centre of the shaft journal.
Attention!
The push-on gear unit must be fitted onto the shaft using a suitable puller, which will
not exert damaging axial forces on the gear unit. In particular, do not hit the gear unit
with a hammer.