NORD Drivesystems B1000 - Manual (Page 712)

www.nord.com G710 G1000 – Subject to Change Without Notice
MOTORS
Additional
Options
High Inertia Cast Iron Fan (Z)
An optional cast iron motor cooling fan is available.
This fan is used as a mechanical soft start and/or soft
stop. This fan adds inertia to the motor. The high in-
ertia fan can also be used for a fl ywheel effect to store
mechanical energy. This can be helpful in smoothing
rapid load changes. The cast iron fan replaces the stan-
dard plastic motor fan. The motor length is the same
as a brakemotor.
Motor Frame Fan Inertia J
z
[lb-ft 2 ]
71 0.0475
80 0.1140
90 0.2375
100 0.2684
112 0.5653
132 0.9500
Motor Backstop (RLS)
NORD can provide backstops on many motor frames.
A backstop will prevent the motor from rotating in
one direction. A common use is to prevent a motor
from allowing a load to move backwards when power
is removed. A motor brake can also be used for this
same purpose.
?
The allowable direction of rotation
must be specifi ed in the order.
Allowable Shaft Rotation
Clockwise - Back of Motor
Counter Clockwise - Back of Motor
CW
CCW
Build
Build
Motor Size Backstop Torque Minimum Speed Motor Extension
[lb-in] [rpm] [in]
80S/L 1150 860 2.52
90S/L 1150 860 2.95
100L 1150 860 3.58
112M 3270 750 3.66
132S/M 3270 750 4.21
160M/L 7880 670 6.57
180MX/LX 7880 670 6.73
200L 9120 630 6.57
225S/M 9120 630 6.57
250M 22130 400 9.84
280S/M 51330 320 11.02