Parker MGV Series, Руководство пользователя

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20 - PVD 3661 MGV_ commisionning manual_March 2012.docx
3.5. Bearings
The bearings are greased for life.
The statistic bearings life is limited from 6000h up to 10000h depending on the way there are assembled and
used, it is recommended to control the vibrations every 3000h or to change it once the predicted lifetime is
reached.
This period is indicative and has to be considered with the load and speed limits taken into account for the
bearings calculation.
Depending on the maximum speed, the loads and the needed lifetime, those high-speed motors can be
equipped with different kind of bearings: steel ball bearings, hybrid ball bearings (ceramic balls with a synthetic
cage) or Xlife bearings (ceramic balls with rings made with high performance iron).
Max possible speed tab depending on bearing type
F
OR HORIZONTAL MOUNTING ONLY
STEEL STRAIGHT BEARINGS HYBRID BEARINGS X LIFE BEARINGS
Motor
Max speed Radial Axial Max speed Radial Axial Max speed Radial Axial
Load* Load* Load* Load* Load* Load*
rpm N N rpm N N rpm N N
MGV420
26000 100 30 33000 100 30 45000 100 20
MGV430
26000 100 30 33000 100 30 45000 100 20
MGV620
18500 320 80 25000 320 80 30000 240 60
MGV635
18500 320 80 25000 320 80 30000 240 60
MGV820
14300 400 100 18000 400 100 24000 400 100
MGV840
14300 400 100 18000 400 100 24000 400 100
MGV930
11700 500 120 16000 700 160 20000 500 120
MGV950
11700 500 120 16000 700 160 20000 500 120
MGV970
- - - 12000 200 500
MGVA30
9200 700 120 12000 700 120 - - -
MGVA50
9200 700 120 12000 700 120 - - -
*L
OAD ON THE MIDDLE OF THE SHAFT
Possible speed and load depending on bearing type
Other limitations can come from the winding or the drive
(cf: §3.1.4-Drive selection)