Siemens SIMOTICS FD 1MQ1 Operating And Installation Instructions page 27

Version
Vertical type of construction,
shaft height 315, coupling output
Vertical type of construction,
shaft height 355 ... 450
The standard version of the machine is not suitable for belt couplings. This can result in damage
to the machine.
Automatic regreasing system (option)
The roller bearings are optionally equipped with an automatic regreasing system. The roller
bearings are supplied with new grease portions by the regreasing system in parameterized
time intervals.
Rolling-contact bearing design for "Increased degree of protection" (option)
Improved sealing of the bearing units to prevent dust and water from getting in can be achieved
by positioning a grease chamber ahead of the actual bearing unit. Although the same grease
is used in both cases for reasons of convenience, a distinction is made here between
"lubricating grease" and "sealing grease" because of their different functions.
Layout
The spent lubricating grease collects in the space between the bearing housing and the outer
bearing cap. The latter also forms the sealing grease chamber with the labyrinth sealing ring
(optional). The second lubricating nipple containing the grease duct for pressing in the sealing
grease is also located in the outer bearing cap. The chamber is sealed off from the space where
the lubricating grease collects by a V-ring or a V-ring and felt ring combination which prevents
the sealing grease in the chamber from penetrating into the lubricating grease collecting space.
During operation, the sealing grease in the chamber slowly runs out via the labyrinth and seals
it, additionally removing dust from inside and around the outside of the labyrinth ring.
Terminal box
Depending on the machine design, the following terminal boxes are generally used for
connecting the cables:
Terminal box
GT640
1XB1621
1XB1631
1XB7730
1XB7731
SIMOTICS FD 1MQ1
Operating Instructions 01/2019
Rolling-contact bearing
● Drive end: Deep-groove ball bearing as a fixed bearing
● Non-drive end: Deep-groove ball bearing as a floating bearing
with axial compression springs
● Drive end: Pairing of angular-contact ball bearing / deep-groove
ball bearing as a fixed bearing
● Non-drive end: Deep-groove ball bearing as a floating bearing
with axial compression springs
Comment
Only for machines on the
power supply
2 × 1XB1631
Application
Not for explosion-proof versions
Not for IEC explosion-proof versions
Not for IEC explosion-proof versions
Description
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