Meyrat MHF-19, Assembly Instructions Manual

Page: 6 / 26

Version: 21/03/2017
Filename: NA-MHF-19-20-COD-E_version2.doc
© Meyrat SA 2017 6 / 26
!
ATTENTION! Use only a CFB-MHF500 type converter to drive an MHF-19 or MHF-20
electric spindle. A converter can only power one electric spindle at a time. Non-
compliance with the above indications can cause damage to the spindle and/or the
frequency converter.
2.2 Bearings lubrication type
The table below shows the lubrication for each spindle, depending its item number.
Item No. Oil-mist * Air-oil * Grease
010-57-00-COD x
010-57-50-COD x
010-58-00-COD x x
010-58-50-COD x x
010-59-00-COD x
010-59-50-COD x
010-60-00-COD
x x
010-60-50-COD
x x
010-61-00-COD
x
010-61-50-COD x
010-62-00-COD x x
010-62-50-COD x x
010-63-00-COD x
010-63-50-COD x
010-64-00-COD x x
010-64-50-COD x x
* The oil-mist lubrication and air-oil lubrication are similar regarding the functioning of spindle. So the
choice depends mainly on the machine on which the spindle is mounted.
!
ATTENTION ! Failure to observe the type of bearing lubrication can cause rapid damage
to the spindle.
Grease
For spindles of this type, there is no provision for external lubrication. The bearings are permanently
lubricated for the life time of the electric spindle. Air overpressure inside the spindle prevents the
infiltration of impurities.
The required quality of the air is given by: DIN ISO 8573.1:2001 Class 3.
The air pressure should be 0.6 to 0.7 bar at the entrance of the spindle.
!
ATTENTION!
A greater pressure can cause damage to the spindle.
Oil-mist Lubrication
Item no. : DLB-MHF
Pressure at the entrance of spindle 1.6-1.7 bar
Pressure of manometer
According to chapter 6.4
Air quality
DIN ISO 8573.1:2001 Class 3
Oil Motorex COREX HLP ISO VG 32
Regulation of oil flow 30 drops per minute
Accessories included with the group 1 liter of Motorex COREX HLP ISO VG 32
Pneumatic tube ø6/4, length 2m to 10m *
* The first 10 cm of tube are ø4/2.5. The length of 10 cm should not be exceeded.
!
ATTENTION ! Without a right lubrication, the spindle will be damaged very fast. It is best
to use a coil at the proximity of spindle, to create an oil reserve in case of pressure is
disabled.
!
ATTENTION ! This kind of lubrication requires a stable and continuous in time functioning
to establish a steady oil flow in the tube. Thus, frequent interruptions of lubrication and air
pressure are not allowed. Lubrication must be active during periods of at least 1 hour.