Outside the spherical bearing normal damage and prevent lubrication inspection techniques

Bearing, roller and inner circle ( Or outer ring) By load is not constant, but with the TIMKEN bearing of repeatedly changing operation. The load for the alternating load; And because of roller and inner circle ( Or outer ring) Contact area is small, makes the contact stress is very big, under the high speed, in great alternating contact stress under the action of repeated many times, metal fatigue will occur. , visible tiny cracks in the area of stress concentration, due to the effect of lubricating oil and the corrosion of the metal, make the crack expanding gradually, when expanded to a certain degree, the surface metal flake will produce, form small pit, similar pitting, we in overhauling bearing, often found in or outer ring and roller surface pitting and flake pieces of metal, this is the phenomenon of metal fatigue spalling. Outer spherical bearing fatigue spalling if the bearing occurs after long time operation, shall be deemed to be the natural damage, if, at the early stage of the bearing the use of the medium-term or shall be deemed to be the natural flake, then, should find out the reason of spalling. Walks in oil pump will be filtered oil to the outer spherical bearing parts, through the bearing smooth oil filter cooling after use. Because circulating oil can take away heat, must make bearing cooling, therefore method suitable for high speed bearing parts. In dry contraction by the sprayer and smooth air oil mixed oil mist, radiation TIMKEN bearings, can effectively make the bearing cooling airflow and can avoid intrusion. This method is suitable for high speed and low temperature bearing parts is smooth. By shooting will pump the oil in the low pressure of nozzle to the outer spherical bearing, into the bearing of the bearing at the other end into the oil in the tank. When bearing at high speed, rolling body and maintain frame to match the rotation of the high speed air cause air flow around, it is hard to smooth the oil to the bearings in individual smooth way, then must smooth oil spray with low radiation to bearing, the status of the nozzle should be placed in the middle of the inner ring and maintain frame between. Rotate the outer ring and bracket will be washed thoroughly, rolling element and the raceway border, the requirement to any hidden part of residual oil stains thoroughly clean off. Bearing should be attached to clean after washing clean oil spray dry, in line with clean neutral lining paper work table to dry, or dry slowly in the far infrared drying oven. Since oil spray dry clean and dry or drying, the process can not rotate or any rolling element bearing ring, adhere to the frame. TIMKEN bearings in the delivery practices before inspection to remove the oil seal packing, and turn it into oil containing 3% no acid washing gasoline or kerosene. Should be in accordance with the provisions, drip into the lubricating oil and check for immediate delivery, is dry or drying of the bearing. At this time no oil film bearing outer surface protection, the entire process of inspection shall not directly touch the skin of hands, the operator should wear clean gloves, or hand coated with anti-rust agent, but the rust inhibitor must avoid hand bearing with rolling appearance, otherwise it will result in deviation of measurement results. Should be used for immediate delivery or rust inventory processing, also should take to complete the entire inspection process, outer spherical bearing after the completion of the inspection. In order to avoid lasted too long lead to rust. Pay attention to the use of pure gasoline cleaning without oil can also cause corrosion. Have dry or drying bearing should, in accordance with the provisions, drip into the lubricating oil and check for immediate delivery, no oil film bearing outer surface protection, in the whole process of inspection shall not directly touch the skin of hands, the operator should wear clean gloves, or hand coated with anti-rust agent, but the rust inhibitor must avoid hand bearing with the rolling surface, otherwise it will result in deviation of measurement results. 5. Bearing in the check has been completed, should be used for immediate delivery or rust inventory processing, also should take to complete the entire inspection process, so as to avoid took too long to cause corrosion. Pay attention to the use of pure gasoline cleaning without oil can also cause corrosion. 6. TIMKEN bearing before the check has exiguity and inspection gauge block, standard parts, and measuring instruments used in the common place in the examination place a piece of metal plate, which can quickly make these objects of homogenization temperature and room temperature.