1313
-13-
Fig. 3d
Table 4
6. 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 gear units 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 COOLING
page 18-19).
6.1. SPLASH LUBRICATION
Splash lubrication is standard with horizontal shaft gear units and for speeds between 750 and
1800 min-1 at the high speed shaft. Gears and output shaft bearings are lubricated by
immersion in the oil bath. Oil splash from gears fill oil pockets in the housing, assuring gravity
circulation lubrication of the bearings via channels in housing and covers.
For other speeds at the high speed shaft, refer to HANSEN.
Gear unit size D PT PR max D SA
±5 mm inch mm inch Q* DIN 2093
QH.J3 - QH.J4
80 M42 105 4.1 1,4 0.055 2 x 3 A 160
QH.K3 - QH.K4
80 M42 105 4.1 1,4 0.055 2 x 3 A 160
QH.L3 - QH.L4
80 M48 120 4.7 1,4 0.055 2 x 4 A 160
QH.M3 - QH.M4
80 M48 120 4.7 1,4 0.055 2 x 4 A 160
Q*: number of disc springs
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