Longer Service Life

Hybrid precision bearings have been shown to increase the lifespan of your application by up to 40% over a conventional steel bearing.

 

How this is possible:

 

Low surface adhesive wear: The lower affinity to steel reduces the adhesive wear, which is caused by the cold welding effect on irregularities in the raceway and ball surface.

Low abrasive wear out: With steel balls, contaminants and particles from the process of running in are embedded into the surface. With every revolution of the ball, these foreign particles damage the raceway. These particles make little impact on the extremely hard ceramic ball.

Insensitivity to poor lubrication: Low adhesion and friction allow the hybrid bearing to perform well even under poor lubrication.

Longer grease service life: Lower operating temperature and favorable tribologic features, extend the service life of the grease.

Higher Speeds

The attainable speed depends on the thermal conditions in the bearing. A hybrid bearing creates less friction and generates less power loss, therefore the speed limit is increased.

 

Low rolling friction: Ceramic balls are lighter than steel, therefore rolling friction is reduced because the centrifugal force is less. 

Low sliding friction between ball and raceway: At high speeds, sliding friction is responsible for most of the total friction. One of the criteria for the sliding friction is a low spin/roll ratio, if it’s above 0.25 then service life will be affected.

Avoid ball skidding: Balls skid on the raceway if the preload between the rings is too small. This process usually occurs in cases of an insufficient preload of the bearing or an excessive acceleration. With hybrid bearings, you can reduce the preload minimum because they have a smaller inertia and generate a smaller spinning moment.

Low Cost Lubrication

Grease lubrication can be used in higher speed ranges.

The limiting speed for minimum oil lubrication increases significantly. In many cases, it can replace the expensive oil jet lubrication.