Cobra Solid Lubricants™ can be used with virtually any style bearing (except needle bearings and some thrust bearings) that has a metal cage separating the balls or rollers. Bearing size can be as small an I.D. as 1/8” or as large an O.D. as 25”. To be processed with Cobra Solid Lubricant, the bearing must have a metal cage.  Some full complement bearings and wheels can also be processed with Cobra Solid Lubricants.

    Bearings processed with Cobra Solid Lubricants are filled from the inner to the outer race and for the width of the bearing.  The microscopic clearance between the Cobra Solid Lubricant and the metal rings of the bearing ensures protection from dirt, dust, or other contaminants. Contaminants small enough to migrate into the gap can not latch onto the dry solid lubricant to clog the ball path.  Normally, additional seals or shield are not required, even in high contaminant areas.

    The dry solid lubricant deposits a 2 micron thick film of graphite on all friction surfaces of the bearing. Because of this, and the expansion of the metal which will occur at high temperatures, the recommended clearance for applications up to 250F is C3 and the clearance for applications up to 660F is C4.

    Other factors affecting bearing life, especially at high temperatures are speed and load. Ordinary steel bearings suffer significant loss of hardness at temperatures above 300F. For application above 250F, heat stabilized steel bearings are recommended.  When using bearings processed with Cobra Solid Lubricants, especially in high temperature and/or high speed applications, a slip or light interference fit is recommended between shaft and bearing.

    Cobra Solid Lubricants are not recommended for high impact applications.  Vibration or moderate impact will normally not effect the lubricant.

    Cobra Solid Lubricants are not rust inhibitors. Normal care should always be taken to protect bearings in corrosive applications.

    Starting torque of bearings processed with Cobra Solid Lubricant is similar to that of free-spinning bearings. Minimum load to prevent ball skid is similar to a dry bearing.

    Bearing can be processed with Cobra Solid Lubricants only at UTA facilities. We can supply the bearing with the solid lubricant complete or you can supply the bearing for us to process. If you supply the bearing, it must be unused, corrosion free, meet our size and type requirements, and be suitable for the intended application.

    Cobra Solid Lubricant may extend bearing life up to ten times or more!