1, the shaft and bearing tolerances choice and control: bearings pressed into the flat bearing should turn the flexible block sense.If the apparent rotation is not flexible, that the axis size is too large, the tolerance to be lowered. Such as IKO bearings pressed into the shaft is turned by hand "imperfections" in a sense, it may be the axis of the tolerance is too large or shaft roundness is not good. Control of the well shaft and bearing tolerances control the roundness.
2, the bearing assembly: Because the bearings are precision products, such as the improper assembly bearing channel it is easy to damage, leading to bearing damage. IKO bearings in the assembly should have a special mold, can not be beat, can only be pressed into the shaft, a small circle, force, pressure of the great circle only great circle force. Require the use of pneumatic or hydraulic assembly, press-fit upper and lower mold outside the state level, if inclined to cause damage to the plane bearing channel due to power, leaving the bearings to produce the guide ring.
3, the assembly of foreign bodies to prevent: bearing mounted to the rotor on the balancing is very easy to generate dynamic balance when iron filings into the bearing, so it is best to do balancing mounted bearings. Some manufacturers in order to facilitate assembly, the assembly coated with oil or grease from the lubrication in the bearing indoor, but often the operator is difficult to control, if the oil or grease in the bearing chamber accumulates more in the rotation of the IKO bearings can easily along the axis into the plane inside the bearing. Bearing chamber is preferably not coated with oil or grease, such as non-coated non-will have to control the bearing accumulates.
Paint rust prevention: paint rust is characterized by multiple sealed type motor, the motor assembly, sound good, but put some time in the warehouse, motor abnormal noise becomes large, remove the bearing the phenomenon of serious rust. The main problem is because the insulating paint out of the volatile acid formed in a certain temperature, humidity, corrosive substances, the corrosion plane IKO bearings channel and lead to IKO Bearings damage. The problem can only be selected good insulating paint, and assembly ventilation for some time after drying.
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