Operating Instructions; How To Apply The Nut - SKF HMV Série Mode D'emploi

The maximum oil pressure with permitted piston displacement that can be applied to a
HMV series hydraulic nut is as follows:
HMV 10 - 60
HMV 61 - 100
HMV 101 - 200

2. Operating instructions

2.1 How to apply the nut

To enable easy mounting, especially
for larger nuts, it is important that the
nut is properly centred on the mating
thread before rotation.
Large nuts must be supported during
installation.
One way of doing this is to use a special
mounting tool similar to that shown in
figure 2.
When the bearing is mounted on a
sleeve, make sure that the sleeve is
straight, that is, with the thread aligned
over the slotted part of the sleeve.
It is recommended to always use a
thread lubricant before applying the nut
on the mating thread.
To thread the nut onto the shaft or sleeve use the tommy bar provided. This is inserted
in one of the four unthreaded holes in the outside cylindrical surface or in one of the two
holes on the side surface.
Nuts of size HMV(C) 94E and larger have the provision for two eye bolts (DIN 580) to be
fitted. One or both of the eye bolts, when properly fitted, can be used to safely lift the nut.
The size of the eye bolts is shown in the following table:
HMV(C) ..E nut size
94 - 130
134 - 160
170 - 200
To facilitate the mounting of nuts of size HMV(C) 94E and larger, an arrow is marked on
the nut circumference showing the position of the first thread.
6
80 MPa (11 600 psi)
40 MPa (5 800 psi)
25 MPa (3 600 psi)
Figure 2. Support for a large hydraulic nut
Eye Bolt Thread Size (DIN 580)
M10
M12
M16
SKF HMV / HMVC