SKF
NoWear Coated Bearings
NoWear is a SKF proprietary coating applied to bearing rollers or raceways that significantly reduces friction and wear, especially under conditions of poor lubrication or high contamination. The thin, diamond-like carbon (DLC) coating is extremely hard yet flexible, protecting the underlying steel from adhesive wear, scuffing, and particle-induced surface stress. NoWear coated bearings can operate with thinner lubricant films, extend relubrication intervals by up to 10 times, and survive temporary lubricated starvation without immediate failure. They are used in wind turbine gearbox planetary stages, paper machine guide rolls, and compressors. The coating enhances reliability in applications where traditional bearing life is limited by smearing or white etching cracks (WEC). Upgrading to NoWear bearings reduces total cost of ownership by lowering maintenance frequency and preventing unexpected outages.
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Trusted by Industry Leaders
Superior Wear Resistance
DLC coating reduces friction and adhesive wear.
Extended Lubrication Intervals
Survives thin-film or starved lubrication conditions.
Smearing Prevention
Reduces roller/raceway adhesive damage during rapid acceleration.
White Etching Crack Resistance
Coating mitigates WEC formation in wind turbines.
Hard, Flexible Protection
Hard like diamond but adapts to contact stresses.
Proven in Demanding Sectors
Wind, pulp & paper, and marine applications.
NoWear Bearings in Wind Turbine Gearboxes
Wind turbine gearboxes suffer from smearing and white etching cracks due to transient loads and marginal lubrication. NoWear coatings on planet gear bearings have demonstrated life increases of 3x or more, dramatically lowering the levelized cost of wind energy.
Maintenance Strategy Impact
By reducing sensitivity to oil cleanliness and extending oil change intervals, NoWear bearings deliver operational savings. They are an essential tool for operators moving from reactive to condition-based maintenance.