NORD Drivesystems B2050 - Manual (Page 10)

3. Assembly instruction,
storage, transport, preparation, installation
-10- B2050-GB-0613 www.nord.com
Explanation of the name plate
Abbreviation Unit Name Refer to
Type - NORD gear unit type
No. - Serial number
iges - Overall gear unit ratio
n2
min-1
Rated speed of gear unit drive shaft*
n1
min-1
Rated speed of the gear unit drive shaft or the drive motor*
IM - Configuration (installation orientation) Sec. 6.1
M2 Nm Max. permissible gear unit drive shaft torque
P1 kW Max. permissible drive power or motor power
Bj - Year of manufacture
FR2 kN Max. permissible transverse force on the gear unit driven shaft Sec. 3.9
FR1 kN Max. permissible transverse force on the gear unit drive shaft for option
W Sec. 3.9
Tu °C Permissible ambient temperature for the gear unit
FA2 kN Max. permissible axial force on the gear unit driven shaft Sec. 3.9
FA1 kN Max. permissible axial force on the gear unit drive shaft for option W Sec. 3.9
MI h Interval between general overhauls of the gear unit in operating hours
or details of the non-dimensional maintenance class CM Sec. 5.2
Sec. 5.2
xR2 mm Max. dimension for the point of application of the transverse force FR2 Sec. 3.9
Oil - Gear unit oil type (standard designation) Sec. 6.3
Last line
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Labelling as per ATEX (DIN EN 13463-1):
1. Group (always II, not for mines)
2. Category (2G, 3G for gas or 2D, 3D for dust)
3. Ignition protection type if fitted (c)
4. Explosion group if applicable (IIC, IIB)
5. Temperature class (T1-T3 or T4 for gas) or max. surface
temperature (e.g. 125°C for dust) or
special max. surface temperature see special documentation (TX)
6. Temperature measurement on commissioning (X)
Sec. 4.6
S - Number of the special documentation, consisting of serial no. / year
* The maximum permissible speeds are 10% above the rated speed, if the maximum permissible drive power
P1 is not exceeded.
If the fields F R1 , F R2 , F A1 und F A2 are empty, the forces are zero. If the field x R2 is empty, the point of
application of force FR2 is central on the drive shaft journal (See Figure 3-7).