Manganese ore crusher for sale in Namibia
When the jaw crusher work, strength of the cage is critical to bearing performance. For medium and heavy-duty cylindrical roller bearings, it is recommended to use electric brass cage outside the circle. Shaft bearings can be used between 40-85mm outside Ao style circle as the center of the cage; for large bearings can be used as the center of the outer ring halves riveted together cage; this arrangement when using grease lubrication It is not always good, so that oil lubrication is recommended. SKF cylindrical roller is processed into slight barrel. This is a slight barrel logarithmic curve. This curve between the roller and the jaw crusher evenly distributed load element channel. This particular curve is the edge that is contained dangerous minimum. All these factors have extended the life of the bearing. In order to allow for thermal expansion movement of the shaft, bearing installation should leave some axial clearance. For excitation motor, depending on the size of such an axial gap usually ranges between 0.3-1.5mm.
Under jaw crusher shaft bending moment can be negligible in the case, recommended 223 series of cylindrical roller bearings. NJ type cylindrical roller bearing outer ring has two integral flanges. Flange function is to hold and guide the rolling elements and axial load. Roller in contact with the flange geometry is "open" adaptive obtained by optimizing the rolling elements and the flange asked. This design optimizes the lubrication characteristics between the roller and the flange, and provides the best axial load carrying capacity, minimal friction. NJ type cylindrical roller bearing inner ring with an integral flange. This allows the side can withstand axial load. On the other side of the bearing is not positioned, thus allowing some axial displacement, such as thermal expansion of the shaft. Thus, the inner ring and the shaft may have a contact with the positioning, fretting will not be - a problem, there is no need to do internal bore special treatment.
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