Founded in 1990, China Famen Bearing Co., Ltd. is specialized journal bearing manufacturer and journal bearings distributor of all types of custom and cheap bearings. We obtained ISO9002, ISO14001, and QS9000 certificates in 1995 and 1996, 1999 respectively. Other advanced equipments include four RGB and RCI series heat treatment production lines with a treatment quantity totaling 1,500 kilograms per hour. The Multi-points temperature control meters and CNC display meters with bi-directional control have been adopted to complement these units.

Journal bearings are meant to include sleeve, plain, shell and babbitt bearings. The term babbitt actually refers to the layers of softer metals (lead, tin and copper) which form the metal contact surface of the bearing shell. These softer metals overlay a stronger steel support shell and are needed to cushion the shell from the harder rotating shaft.
Simple shell-type journal bearings accept only radial loading, perpendicular to the shaft, generally due to the downward weight or load of the shaft. Thrust or axial loads, along the axis of the shaft, can also be accommodated by journal bearings designed for this purpose. Figure 1 shows a tilt-pad bearing capable of accepting both radial and thrust loads. Journal bearings operate in the boundary regime (metal-to-metal contact) only during the startup and shutdown of the equipment when the rotational speed of the shaft (journal) is insufficient to create an oil film.

Smith Bits' standard line of journal and roller bearing bits deliver premium performance. Our standard bits are the focus of an ongoing product improvement effort which enhances existing designs and integrates new materials technology. The features, components, and performance of these bits are continuously improved in order to play an aggressive role in driving down drilling costs.
Among the features and materials found in the standard product offering are the Spinodal journal bearing, a new, synthetic-based bearing lubricant, the Flex-Flo Adaptive Hydraulics System, MIC2 hardfacing, diamond enhanced inserts, coarse carbide inserts and TruCutTM gauge inserts.

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