Supply lubrication circuit

Circulating lubrication of gearboxes, bearings and units requires a constant, low-pulsation volume flow, technology that is resistant to continuous operation and seals that are suitable for the medium. Primarily with gear pumps.

 

Typical applications

  • Circulating lubrication on gearboxes, bearings, spindles
  • Supply of oil filters, coolers, heat exchangers
  • Filling/emptying lubricating oil tanks, recirculation

Technical requirements

  • Medium: Lubricating/hydraulic/gear oils (specify viscosity)
  • Operation: Continuous operation, FU recommended for variable-speed delivery
  • Suction side: short, tight suction line; check NPSH/inlet; avoid air
  • Δp/temperature: subject to design per line/filter/oil (up to high temperatures if necessary)
  • Materials/seals: Cast iron or stainless steel, seal e.g. NBR/FKM/glide ring to match the oil
  • Protection: Provide safety/bypass valve and pre-filter (mesh size according to oil/dirt)