Before installing bearings, quality inspection must be carried out in accordance with relative technical conditions. For ordinary bearings(deep groove ball bearings without seal ring and short cylindrical roller bearings), the cleaning and installing bearings right or not will have a direct impact on the noise of the motor’s bearing.

    Before cleaning normal bearings, you must first wipe off the antirust used for bearings’ encapsulation. For antirust grease, you can put the bearing into a oil tank filled with 100~120℃ of spindle oil and take it out after 10~15 minute. Use antirust for the holding frame and oiliness antirust grease for other parts, and soak the bearings in 2% ~ 3% aqueous solution of sodium oleate soap or 664 cleaning agent solution at heating temperature (the aqueous solution of sodium oleate soap’s heating temperature is 80~90℃ and the 664 cleaning agent solutions heating temperature is 75~80℃) and at room temperature for 2~3 minutes in turns. And then rinse the bearings with clean water and put them in petrol or kerosene to clean them and dehydrate them at last.