Crown on rolling elements - The key factor in supporting the high stresses generated by the demanding application environment of Cat equipment is the specialized shape of the bearing rolling element. This precisely crowned shape helps reduce pitting and breakage. Proper crown or curvature of rolling elements allows for high load-carrying ability and long system life. This means customers can work their Cat equipment hard and still obtain the maximum life designed into the major systems.
Debris resistant material - Caterpillar incorporates proprietary heat treat processes and uses special materials to achieve a bearing surface which has shown extreme resistance to failures caused by debris in the system. This means that contaminants and metal wear particles circulating through the system are less likely to accelerate the rate of bearing wear. Customers are seeing as much as twice the wear life from this product as industry standard bearings in more demanding applications. Debris resistant bearings are offered for larger Caterpillar off-highway trucks.
Application- specific design - No one understands the application demands of Caterpillar equipment and how that translates into structural and design requirements like Caterpillar. Bearing performance is critical to achieving intended drive train life. Caterpillar specifies the bearing features for their suppliers to meet to insure critical gears, shafts and carriers properly mate and align as designed. Saving pennies on bearings can result in larger costs later in the form of shorter component life or project related costs resulting from unexpected equipment down-time.
Surface finish - Special surface finishes increase bearing and component life by providing superior control of the oil film on the rolling surfaces. This reduces friction and heat buildup, which are necessary for component wear to occur. As a result, customers receive the component life they paid for - getting the maximum value from their equipment.