The common reasons for roots blower bearing damage

Roots blower due to long-term continuous operation, the motor body temperature rise too high, bearing supplement will not cause bearing grease dehydration, until the damage of bearing, shaft bending and fracture belt stator and rotor. Friction ( Often referred to as the broom) Lead to core temperature rise sharply, burning slot insulation, turn-to-turn insulation, cause the winding interturn short circuit or on the ground 'shooting'. In serious cases, the stator core may be inverted, misalignment, shaft is wear and tear, and the end cover be scraped off. Roots blower bearing damage is usually caused by the following reasons: 1, the bearing assembly. If in the process of cold assembled bearing inner ring is uneven, the shaft will be affected by the wear, lead to bearing inner ring and outer ring, the interference between the loss or interference is reduced, inner ring phenomenon occurred. When the door is not uniform tapping, bearing and shaft of outer ring is too loose and cannot make the outer ring. Roots blower whether running inner ring or outer ring will lead to a sharp rise in the bearing temperature rise. As long as the bearings are intact, allows the phenomenon of intermittent operation of the outer ring. 2, bearing wall not clean, or grease is not clean. Tiny steel bearing materials, for example, thoroughly clean, and the operation is rolling bearing to damage caused by the temperature too high. 3, bearing replacement again. Roots blower in the motor end cover nested, interference is very big or ovality exceed standard, cause the ball bearing gap is too small or uneven, lead to bearing friction increase, in the process of running a sharp rise in the temperature until the burn. 4, because of the stator and rotor core axial or insufficient accuracy after machining shaft, bearing inner ring and outer ring is not a block, lead to bearing 'eat', then the temperature until the burn. 5, due to mixing of different types of grease bearing damage. Six, bearing the quality problems, such as groove corrosion, rotation is not flexible, gap is too small, cage deformation, etc. 7, the captain of the standby time is not running, grease, rust can only maintenance and maintenance, only regular inspection and regular change of grease.