Sealing Air Connection - Bosch Rexroth IndraDyn A Series Project Planning Manual

7-2
Accessories
7.2

Sealing Air Connection

Ordering name of accessory
Note:
• Pay attention to the assembly instructions for accessory
SUP-M02-xxx... (in the scope of delivery).
• The labyrinth seal is effective only in horizontal installation
position and from approx. 200 rpm. It may only be attached
to motors with a factory-mounted shaft sealing ring.
• Seeping fluids can lead to damage to the motor. The tightness of the
motor seal is ensured only according to the guidelines of the
corresponding motor protection class.
When the motor is to be operated under adverse conditions, a higher
protection class than the standard protection class with radial shaft
sealing ring (IP65) may be required. High demands may be made on the
tightness of motor seals when the motors are used in areas where oily
coolants are used. We recommend to use sealing air in addition to the
radial shaft sealing ring for these areas of application.
A defined excess pressure in the motor interior induced by the sealing air
connection reliably prevents the penetration of, for example, creep oils
and coolants.
(1): Splashing water, lubricant
(2): Compressed air line
(3): Excess pressure inside the motor
(4): Lid for sealing air (with connector for compressed air line)
Fig. 7-3: Motor with sealing air connection
For IndraDyn A motors of frame sizes 100 to 160 with connector sockets
for power connection, air pressure connector kits are available as
accessory.
Motor size
sets
MAD/MAF...
100
130...160
Fig. 7-4: Sealing air connection accessory
The air-pressure connector can be retrofitted by simply replacing the
existing lid with the lid in the accessory kit. This lid comprises the
connector for the compressed air line.
Motor flange Description
socket (type)
SUP-M01-MHD (MNR R911283006)
INS0480
INS0380 SUP-M02-MHD (MNR R911283007)
DOK-MOTOR*-MAD/MAF****-PR03-EN-P
Rexroth IndraDyn A
0,1...0,3 bar