6.7. LUBRICATION AFTER INSTALLATION
After levelling, alignment and securing, the gear unit must be lubricated. All instructions mentioned in
chapter 7 "LUBRICATION" must be followed up.
If a long period of standstill is expected before starting up the gear unit, the instructions mentioned in
paragraph 12.6 "EXTENDED PERIODES OF STANDSTILL" must be followed up.
7. LUBRICATION
Lubrication serves four main functions :
- prevents metal to metal contact in gears and bearings
- reduces friction losses
- dissipates the generated heat from gears and bearings
- prevents corrosion
Different lubrication systems can be used, depending on
- gear velocity
- gear unit mounting position
- operating conditions
Hansen Industrial Gearboxes use one of following systems :
- splash lubrication
- forced feed lubrication: - circulation lubrication
- pressure lubrication
These systems can be completed with auxiliary cooling in different forms (see chapter 9: "COOLING").
ENGLISH
26
Table 3
Gear unit D PT PR max
ΔΔ
ΔΔ
S A
size
QH.C3
±5
35 M20
mm
50
inch
1.97
mm
0,7
inch
0.028
Q*
2 x 3
DIN 2093
A 80
QH.D3 - QH.D4
QH.E3 - QH.E4
QH.F3 - QH.F4
QH.G3 - QH.G4
45
45
M24
M24
60
60
M30
M36
60
60
2.36
2.36
75
90
2.95
3.54
0,9
0,9
0.035
0.035
1,0
1,0
0.039
0.039
2 x 2
2 x 3
A 100
A 100
2 x 2
2 x 3
A 125
A 125
QH.H3 - QH.H4 60 M36 90 3.54 1,0 0.039
Q*: number of disc s
prings
2 x 3 A 125
S
1
= S - S
PR
PT
D
FIG.3d
Table 4
Gear unit D PT PR max ΔΔ
ΔΔ
S A
size
QH.J3 - QH.J4
±5
80 M42
mm
105
inch
4.1
mm
1,4
inch
0.055
Q*
2 x 3
DIN 2093
A 160
QH.K3 - QH.K4
QH.L3 - QH.L4
QH.M3 - QH.M4
80
80
M42
M48
80 M48
105
120
4.1
4.7
120 4.7
1,4
1,4
0.055
0.055
1,4 0.055
Q*: number of disc s
rin
s
2 x 3
2 x 4
A 160
A 160
2 x 4 A 160
25