Date: 2013-08-20

NSK bearing friction and wear mechanisms

NSK Bearings friction mechanism is significantly different from the other bearing friction depends mainly on radial load, swing frequency, swing times, swing angle, the contact surface temperature and surface roughness and other factors. General NSK Bearings in the movement, the outer ring relative sliding friction, the friction; other bearing friction during exercise compared to the relative sliding of the liner layer and the inner or outer ring, the friction coefficient is smaller . Studies have shown that NSK bearings coefficient of friction of different materials under the same conditions, a significant difference in the cushioning material.
With the continuous development of NSK bearings, the wear mechanism and form changed. In the course of their work, the general lubrication of the bearing due within the outer ring of the relative sliding, causing the bearing working
The surface layer of materials continue to lose, resulting in the bearing can not work properly. The main wear form of adhesive wear, abrasive wear and corrosive wear of three types. NSK Bearings wear to work because of the liner with the relative sliding of the outer ring, causing the liner off, tear, extrusion and other failure modes, lead to bearing does not work properly.
With the rotation of the bearing, NSK bearing outer circle spherical PTFE composites, including between the outer spherical form a lubricating film, reducing the shear strength of the contact surface of the spherical micro-protrusion on the lubricating layer of the composite the abrasions obvious effect of suppression and mitigation. Contact performance between the friction pair of the transfer film with the contact between the spherical surface of the inner outsiders such contacts to reduce the frictional resistance of the bearing rotation, thereby significantly reducing the coefficient of friction between the sphere. In the wear process, the transfer film is constantly being squeezed,
Self-lubricating layer thinning, leading to the NSK Bearings wear depth increases. Thus, the reasons for bearing failure in the swing process in its PTFE constantly being squeezed out of the lubricating function decline, eventually leading to the woven matrix material wear.

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Product Model	Inside Diameter	Outside Diameter	Thickness
6015 NSK	75	115	20
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