Electric insulation INSOCOAT bearings SKF company

SKF 2019 - electric insulation INSOCOAT bearings 04 - 18 motors, generators and other related equipment used in the rolling bearing, in the process of use is likely to be affected by the current through the, this will not only damages to the rolling element and raceway of bearing, but also will affect the performance of the grease. Frequency conversion motor speed range is larger, the internal produce parasitic capacitance, lead to bearing has a high chance under high frequency current through the problem. Current leakage form the inner ring rolling on corrugated grooves and the color darkened ball isometric corrugated groove on the inner ring ( At the bottom of the black) Leakage current bearing damage will affect the whole machine abnormal vibration, noise increased, the machine can't work normally. In order to solve the problems of the current through bearings, SKF developed electric insulation INSOCOAT bearings, can prevent the damage is current through the electric insulation bearing, and other commonly used in protection bearing insulation methods or measures to compare, electric insulation INSOCOAT bearings is a more economical and practical solution. INSOCOAT electric insulation bearing outer ring and inner ring on the surface with a layer of about 100 microns thick of alumina, can withstand voltage of up to 1000 VDC. For applications that need to be under more pressure, SKF can also provide bearing outer ring alumina coating thickness more than 300 microns. Electric insulation INSOCOAT bearings on the coating can effectively prevent the alternating current (ac) and direct current (dc) through the resistance of the coating minimum 50 m & Omega; , SKF once test, the insulation coating is more than 3000 VDC will be electric breakdown. SKF INSOCOAT electrical insulating coating on the bearing, is the use of SKF plasma spraying technology, the alumina coating is firm and evenly attached on the surface of the ring, and then make some other processing, in order to increase the ability of its resistance to moisture and humidity. The production of electric insulation INSOCOAT bearings SKF company mainly single row deep groove ball bearings, single row cylindrical roller bearings. The appearance of this kind of electric insulation bearing size and rotation accuracy is the same as standard bearing, outer ring and inner ring surface is 100 microns or 300 microns thick aluminum oxide coating, does not affect the size of the bearings and precision. Most electric insulation INSOCOAT bearings are the insulation coating process on the outer appearance. Bearing outer ring insulation coating is generally outside diameter in & ge; 80 mm products. This design with suffix VL0241 said. Outer ring insulation coating of bearing inner ring bearing with insulation coating is the coating process, the inner diameter of the circle, as a result of the coating surface area is lesser, relatively increased the impedance, so to have a better insulation effect. Inner ring with insulation coating bearing is generally diameter & ge; 70 mm products. This design with suffix VL2071 said. Inner ring with insulation coating INSOCOAT bearings electric insulation bearing installation method and general method of bearing the same. But should give full play to the electric insulation INSOCOAT bearings should reach the working life, must want to have good lubrication, clean regularly added to satisfy the bearing performance of lubricant. Hk united bearing focus bearing industry informationization service nearly 20 years, with many excellent bearing enterprise grows together, also witnessed China's bearing production technology from low to high development process. We will adhere to continue, the steadfast work, don't, don't give up, for to contribute the benign development of Chinese bearing industry. Hk united bearing network bearing engineers, 2018. 10. 17