These parameters have an effect on the type of lubrication system for the gear unit:
• Gear speed
• Mounting position of the gear unit
• Operation conditions
The certified drawing shows the lubrication system that is used for your gear unit.
Splash lubrication
Splash lubrication is the standard for gear units with horizontal LSS of these types:
Number of stages
Speed at the HSS [min
-1
]
1
750 to 1800
2
750 to 1800
3
750 to 1800
4
1000 to 1800
In other conditions, the lubrication system can be different. The type plate shows the
approved speed of the HSS.
Force-feed lubrication
An oil pump lubricates all turning parts above the level of the oil bath. The oil pump
pumps the oil through pressure lines.
There are different types of oil pumps:
• Integrated pump: one of the shafts of the gear unit operates the oil pump.
• Motor pump: a motor operates the oil pump.
The lubrication can be circulation lubrication or pressure lubrication.
Integrated pump
Refer to the certified drawing for the lubrication system for your gear unit. The lubrication
system can have these parts:
• A pump
• A filter with bypass
• A flow switch
The pump can operate in two directions of rotation.
Motor pump
A sign on the pump shows the direction of rotation of the motor shaft of the motor pump.
Breather plug
A breather plug is installed to prevent a too high pressure in the gear unit.
Cooling system
A cooling system can be necessary to remove heat from the gear unit. Friction and
churning of gears and bearings in the gear oil causes the heat.
The certified drawing shows the cooling system that is used for your gear unit, if any.
4.4.2
4.4.3
4.5
4.6
Description
18
IM_405_002_EN
