How To Generate The Pressure; Mounting Of Bearings - SKF HMV Série Mode D'emploi

2.2 How to generate the pressure

SKF produces a comprehensive range of pumps to complement the complete range of
HMV(C)..E nuts.
The following pumps are recommended for the various nut sizes:
HMV(C) 10E - HMV(C) 54E
HMV(C) 56E - HMV(C) 92E
HMV(C) 94E - HMV(C) 200E
When using the SKF Drive-up Method, the following pumps are recommended:
HMV(C) 10E ... 54E
HMV(C) 56E ... 92E
HMV(C) 94E ... 200E
Note:
All DU pumps are supplied with the THGD 100 (0 - 100 MPa, 0 - 15 000 psi) digital
pressure gauge.
Oil having a viscosity of approximately 300 mm²/s at the operating temperature,
SKF Mounting Fluid LHMF 300 for example, should be used as a pressure medium. When
connecting the pump, be sure that all air is purged from the hydraulic system. Opening
the ball plug whilst at the highest point and pumping oil until air-free oil emerges can
achieve this. The ball plug is then tightened and the nut is ready for use.

2.3 Mounting of bearings

The nut should be carefully screwed onto a threaded section of the shaft or the sleeve
until the nut abuts the bearing inner ring (fig. 3, 4), the withdrawal sleeve (fig. 5), or a
special support nut/plate (fig. 6). It is important that as much as possible, but not less than
80 %, of the thread of the hydraulic nut is engaged. If this is not possible, a help ring to
support the nut is necessary. The piston should then be fully retracted into the nut.
Mounting
Figure 3.
HMV nut for driving
the bearing onto a
tapered seating.
SKF HMV / HMVC
729124/TMJL 50/TMJL 100/728619E
TMJL 50/TMJL 100/728619E
TMJL 50/728619E
729124 DU/TMJL 50DU/TMJL 100DU
TMJL 50DU/TMJL 100DU
TMJL 50DU
Figure 4. Figure 5.
HMV nut for driving HMV nut screwed
the bearing onto an onto the shaft
adapter sleeve. for driving in a
withdrawal sleeve.
Figure 6.
HMV nut and special
stop nut for driving
in a withdrawal
sleeve.
7