Pure refrigerant lubricated bearings from SKF
Using refrigerant as lubricant
Centrifugal compressors using low-viscosity refrigerants have traditionally been gear-driven designs that use hydrodynamic bearings lubricated with an oil-refrigerant mixture. This design requires both a lubrication system and an oil separator to provide an oil-rich mixture to the gears and bearings and a refrigerant-rich mixture to the evaporator and condenser.
Pure refrigerant lubricated bearings from SKF enable a much simpler direct-drive solution – they use the refrigerant as pure lubricant, a breakthrough that allows energy savings of at least 10% versus conventional centrifugal compressor designs. It also helps simplify system design and maintenance requirements.
Field-tested for a decade and counting
- A 10%+ increase in energy efficiency vs. conventional bearings
- Reduced maintenance demands and costs
- No oil residue – zero contamination
- Significant noise reduction