Backstop K2X - Siemens SIMOGEAR BA 2039 Operating Instructions Manual

Technical description

3.4 Backstop K2X

3.4 Backstop K2X
NOTICE
Service life limited
Drive speeds below 1000 r/min or frequent starting and stopping operations
(≥ 20 starts / stops per hour) will limit service life.
Ensure that the backstop is replaced in time when frequent starting and stopping operations
are performed.
NOTICE
Damage or destruction due to incorrect direction of rotation
Do not run the motor against the backstop.
Note the directional arrow on the motor.
Note
The backstop is not suitable for ambient temperatures under -25 °C.
The gearbox can be fitted with a mechanical backstop in the adapter. The backstop permits
only the correct direction of rotation during operation. The adapter is indicated by an arrow
pointing in the corresponding direction.
The backstop is fitted with centrifugally operated sprags. When the gearbox is running in the
specified direction, the inner ring and the cage with the sprags also rotate while the outer
ring remains stationary.
If the drive speed exceeds the speed listed in the table, the sprag rises. The backstop is wear-
free.
Table 3- 1
Frame size
K2X - IEC
80
90
100
112
132
160
180
200
225
250
22
Minimum drive speed when using backstops
Backstop
RS FXN 46-25 NX
RS FXN 51-25 DX
RS FXN 76-25 NX
RS FXN 61-19 NX
RS FXN 101-25 NX
Speed
[r/min]
> 820
> 750
> 670
> 610
> 610
Operating Instructions, 12/2022, A5E50009089A/RS-AJ
BA 2039 (2KJ4)