- Displacement
- 16–160 mL/rev
- Max. speed
- 3000 rpm
Industry
Wind Turbine Gearboxes
A wind turbine main gearbox steps rotor speed up to generator speed under high torque and variable load. Forced lubrication makes sure every gear mesh and bearing gets enough clean oil at the right temperature.
Overview
Overview
The gearbox is one of the most expensive and hardest-to-maintain components in a wind turbine, and its life depends largely on lubrication. The pump in the forced-lubrication system has to stay reliable through severe cold, vibration and long service intervals.
Key challenges
- 01 Cold start Cold oil such as ISO VG 320 is very viscous in winter; the pump must draw it reliably and build pressure in time.
- 02 Hard-to-reach nacelle Maintenance is costly, so lubrication pumps must be long-lived and reliable.
- 03 Vibration and variable load Changing wind brings continuous vibration and load fluctuation.
- 04 Oil cleanliness Gear and bearing life depend on clean oil and fine filtration.
Scenarios
Applications
-
Shaft-driven main gearbox pump
Driven directly by a gearbox shaft — the turbine supplies oil whenever it turns.
Recommended: GL-E External gear pump -
Electric lubrication / cooling pumps
Motor driven for pre-lubrication before start-up and for the cooling circuit.
-
Packaged lubrication & cooling systems
Pump, filter, air cooler and controls in one unit.
Recommended: LOS Lube oil system
System solution
Main gearbox forced-lubrication loop
The pump draws oil from the gearbox sump, sends it through the filter and air cooler, and distributes it via a manifold and nozzles to each gear mesh and bearing before it drains back to the sump.
- 01 Gearbox sump Reservoir and return
- 02 Lubrication pump GL-E shaft / electric Our product
- 03 Filter Fine filter + bypass
- 04 Oil cooler Air-cooled
- 05 Manifold & nozzles Gears and bearings
Products
Recommended products
- Flow
- 50–600 L/min
- Outlet pressure
- ≤ 2.5 MPa
- Oil flow
- 63–400 L/min
- Supply pressure
- 0.15–0.6 MPa
Case study
Lubrication pump for an onshore turbine gearbox (sample case)
- Challenge
- Minimum winter temperature around -30 °C with VG 320 gear oil; oil pressure had to build quickly at cold start.
- Solution
- GL-E-080 electric lubrication pump with heating and a pre-lubrication strategy, plus optimised inlet passages to cut suction losses.
- Result
- Pressure built reliably in cold conditions, meeting the pre-lubrication time requirement. (Sample content; real case to follow.)
Tell us your duty point — we’ll propose the pump
Flow, head / pressure, fluid, temperature, voltage — the more complete, the more precise the selection.