NORD Drivesystems B2050 - Manual (Page 7)

2. Description of gear units
www.nord.com B2050-GB-0613 -7-
2. Description of gear units
2.1 Type designations and gear unit types
Helical gear unit
SK 7207, SK 8207, SK 9207, SK 10207
SK 11207, SK 12207, SK 13207, SK 15207
(2-stage)
SK 7307, SK 8307, SK 9307, SK 10307
SK 11307, SK 12307, SK 13307, SK 15307
(3-stage)
Bevel helical gear unit
SK 7407, SK 8407, SK 9407, SK 10407
SK 11407, SK 12407, SK 13407, SK 15407
(3-stage)
SK 7507, SK 8507, SK 9507, SK 10507
SK 11507, SK 12507, SK 13507, SK 15507
(4-stage)
Versions / Options
- Foot mounting with solid shaft
A Hollow shaft version
B Fixing element
CS2 Cooling system oil / air
D Torque support
EA Hollow shaft with internal spline
ED Elastic torque support
EV Solid shaft with internal spline
EW Drive shaft with internal spline
F Block flange
FAN Fan
FK Collar flange
F1 Drive flange
H Covering cap as contact guard
IEC Standard IEC motor attachment
L Solid shaft both sides
MF.. Motor base frame
…B with brake
…K with elastic coupling
…T with hydrodynamic coupling
MS.. Motor swing base
…B with brake
…K with elastic coupling
…T with hydrodynamic coupling
NEMA Standard NEMA motor attachment
S Shrink disc
V Solid shaft
VL Reinforced bearings
VL2 Agitator design
VL3 Drywell agitator design
W Free drive shaft
W2 Two drive shaft journals
W3 Three drive shaft journals
Double gear units consist of two single gear units. Gear units SK11207 – SK15507 are to be
treated according to these instructions and attached gear units are to be treated according to the
operation and maintenance instructions B2000, each as two individual gear units. Type
designation of double gear units: e.g. SK13307/7282 (consisting of single gears SK13307 and
SK 7282).