This is the most economical solution of sliding bearings. It is suitable for high load low speed application where impact and dust environment working conditions existed. In addition to the initial lubricating, periodically lubricating is necessary because marginal lubricating condition can result into a short duration of the bearings. It is not recommended to be used under dry condition and a proper lubrication system must be considered when use this kind of bearings.
Compared with the traditional hardened steel bearings, the special treated material improves the hardness and reduces the friction coefficients. With the good wear resistance performance of the material, the endurance test under high load and with proper sealed and lubricated conditions, the comprehensive performance of this material is even better than the bronze alloy with solid lubricants. It is suitable for high load low speed application where impact and dust environment working conditions existed.