Jiaxing bearing | motor using insulation bearing causes and the insulation bearing damage

There is rotational, have HRB bearing ( ) Jiaxing bearing group sales co. , LTD. ( The company) Is bearing group co. , LTD. Established in jiaxing spot sales window, specializing in HRB brand bearings, facing the whole country, the existing stock 50 million yuan, covers the whole bearing, have very strong spot supply, is the group's retail sales center. Means to stop the current through the insulation bearing, bearing is the floorboard of the insulation performance. Special coating technology on electric insulation bearing, the bearing surface plating quality coated, coated adhesive strength with substrate, insulation performance is good, can avoid induced current galvanic action of bearing, to prevent current grease and rolling element and raceway damage, improve the service life of bearing. Why the motor insulation bearing use: 1, first of all for the sake of safety, at high frequency, the rotor induced current will be very big, to prevent the motor shaft current. 2, if you do not use electricity insulation bearing, current will flow through bearing formation circulation, bearing heat or electricity spray and damaged more easily. 3, variable frequency speed regulation system of high-frequency shaft current of electric erosion is the most significant feature of the bearing is produced in the inside and outside the circle of motor bearing, ball rub garment board type thick stripe grooves. So electricity insulation bearing motor must end. Motor does not use the insulation bearing consequences: 1, will produce shaft current when the motor running, on both ends of the shaft or between the potential difference between shaft and bearing called shaft voltage, if through the motor frame constitute a loop on both ends of the shaft, the shaft voltage formed the shaft current. Shaft current is shaft voltage through the motor shaft, bearing, stator frame or auxiliary devices constitute a closed loop. 2, the shaft current generated by high voltage in normal condition and shaft under normal circumstances, the consequences of the shaft of the motor voltage is low, oil film bearing can play a role of insulation, won't produce shaft current. But when the shaft voltage is higher, or motor starting instantaneous oil film is not stable formed, shaft voltage will make discharge breakdown shaft current loop that produces lubricating oil film. Shaft current partial discharge energy release produced by high temperature, can melt the bearing inner ring and outer ring or ball on many small area, and form a groove, to produce noise, vibration, if not found in time processing will lead to bearing failure, the great influence on production. If you are looking for the above jiaxing bearing group co. , LTD. The author introduces the bearing inspection and replacement of interest or have any questions, please click on the website on the right side of the online customer service or call:, you close the way of jiaxing bearing purchasing advisors. - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, The company) Reprint please indicate the source