The basic configuration of the gear unit with main and auxiliary drive is shown in the following
diagram.
①
Main gear unit
⑤
Main motor
②
Output shaft of the main gear unit
⑥
Auxiliary motor
③
Backstop
⑦
Auxiliary gear unit
④
Coupling
⑧
Overrunning clutch
Figure 3-14
Gear unit with main and auxiliary drive
Depending on the particular application, two auxiliary drives with two different ratings are
available for each gear unit size.
Further information
You can find further information, a detailed illustration of the gear unit and the position of the
auxiliary drive in the dimension drawing in the complete gear unit documentation.
3.16.1
Overrunning clutch
If, in addition to the main drive, you couple an auxiliary drive to the gear unit, then this coupling
is realised using an overrunning clutch.
When the auxiliary drive is used to drive the gear unit, the overrunning clutch allows torque to
be transferred in one direction of rotation, while "free-wheeling operation" applies when driven
by the main drive.
The output shaft of the main drive rotates in the same direction of rotation, irrespective of
whether the main drive is used or the auxiliary drive.
Principle of operation
The overrunning clutch as centrifugally-operated sprags. When the main gear unit rotates with
the specified direction of rotation, the inner ring with the sprags rotates, while the outer ring
remains stationary. Above a certain speed the sprags disengage, and the overrunning clutch
operates without any wear.
When the auxiliary unit drive motor is used as drive via the outer ring, then the overrunning
clutch is also driven; this means that the main gear unit is slowly rotated in the selected direction
Description
3.16 Auxiliary drive
REDUREX Gear unit 5200en
42
Operating Instructions 03/2019
Summary of Contents for K.A Series
Page 2: ...07 03 2019 13 01 V4 00...
Page 10: ...Table of contents REDUREX Gear unit 5200en 10 Operating Instructions 03 2019...
Page 44: ...Description 3 16 Auxiliary drive REDUREX Gear unit 5200en 44 Operating Instructions 03 2019...
Page 82: ...Mounting 5 9 Final work REDUREX Gear unit 5200en 82 Operating Instructions 03 2019...
Page 104: ...Maintenance 8 4 Possible faults REDUREX Gear unit 5200en 104 Operating Instructions 03 2019...
Page 106: ...Service Support REDUREX Gear unit 5200en 106 Operating Instructions 03 2019...
Page 108: ...Disposal REDUREX Gear unit 5200en 108 Operating Instructions 03 2019...
Page 110: ...Spare parts REDUREX Gear unit 5200en 110 Operating Instructions 03 2019...
Page 126: ...Index REDUREX Gear unit 5200en 126 Operating Instructions 03 2019...
Page 127: ......